Protein components on the surface of LIPOPROTEINS. They form a layer surrounding the hydrophobic lipid core. There are several classes of apolipoproteins with each playing a different role in lipid transport and LIPID METABOLISM. These proteins are synthesized mainly in the LIVER and the INTESTINES.
Structural proteins of the alpha-lipoproteins (HIGH DENSITY LIPOPROTEINS), including APOLIPOPROTEIN A-I and APOLIPOPROTEIN A-II. They can modulate the activity of LECITHIN CHOLESTEROL ACYLTRANSFERASE. These apolipoproteins are low in atherosclerotic patients. They are either absent or present in extremely low plasma concentration in TANGIER DISEASE.
A group of apolipoproteins that can readily exchange among the various classes of lipoproteins (HDL; VLDL; CHYLOMICRONS). After lipolysis of TRIGLYCERIDES on VLDL and chylomicrons, Apo-C proteins are normally transferred to HDL. The subtypes can modulate remnant binding to receptors, LECITHIN CHOLESTEROL ACYLTRANSFERASE, or LIPOPROTEIN LIPASE.
Major structural proteins of triacylglycerol-rich LIPOPROTEINS. There are two forms, apolipoprotein B-100 and apolipoprotein B-48, both derived from a single gene. ApoB-100 expressed in the liver is found in low-density lipoproteins (LIPOPROTEINS, LDL; LIPOPROTEINS, VLDL). ApoB-48 expressed in the intestine is found in CHYLOMICRONS. They are important in the biosynthesis, transport, and metabolism of triacylglycerol-rich lipoproteins. Plasma Apo-B levels are high in atherosclerotic patients but non-detectable in ABETALIPOPROTEINEMIA.
The most abundant protein component of HIGH DENSITY LIPOPROTEINS or HDL. This protein serves as an acceptor for CHOLESTEROL released from cells thus promoting efflux of cholesterol to HDL then to the LIVER for excretion from the body (reverse cholesterol transport). It also acts as a cofactor for LECITHIN CHOLESTEROL ACYLTRANSFERASE that forms CHOLESTEROL ESTERS on the HDL particles. Mutations of this gene APOA1 cause HDL deficiency, such as in FAMILIAL ALPHA LIPOPROTEIN DEFICIENCY DISEASE and in some patients with TANGIER DISEASE.
The second most abundant protein component of HIGH DENSITY LIPOPROTEINS or HDL. It has a high lipid affinity and is known to displace APOLIPOPROTEIN A-I from HDL particles and generates a stable HDL complex. ApoA-II can modulate the activation of LECITHIN CHOLESTEROL ACYLTRANSFERASE in the presence of APOLIPOPROTEIN A-I, thus affecting HDL metabolism.
A class of protein components which can be found in several lipoproteins including HIGH-DENSITY LIPOPROTEINS; VERY-LOW-DENSITY LIPOPROTEINS; and CHYLOMICRONS. Synthesized in most organs, Apo E is important in the global transport of lipids and cholesterol throughout the body. Apo E is also a ligand for LDL receptors (RECEPTORS, LDL) that mediates the binding, internalization, and catabolism of lipoprotein particles in cells. There are several allelic isoforms (such as E2, E3, and E4). Deficiency or defects in Apo E are causes of HYPERLIPOPROTEINEMIA TYPE III.
A 9-kDa protein component of VERY-LOW-DENSITY LIPOPROTEINS. It contains a cofactor for LIPOPROTEIN LIPASE and activates several triacylglycerol lipases. The association of Apo C-II with plasma CHYLOMICRONS; VLDL, and HIGH-DENSITY LIPOPROTEINS is reversible and changes rapidly as a function of triglyceride metabolism. Clinically, Apo C-II deficiency is similar to lipoprotein lipase deficiency (HYPERLIPOPROTEINEMIA TYPE I) and is therefore called hyperlipoproteinemia type IB.
A 9-kDa protein component of VERY-LOW-DENSITY LIPOPROTEINS and CHYLOMICRON REMNANTS. Apo C-III, synthesized in the liver, is an inhibitor of LIPOPROTEIN LIPASE. Apo C-III modulates the binding of chylomicron remnants and VLDL to receptors (RECEPTORS, LDL) thus decreases the uptake of triglyceride-rich particles by the liver cells and subsequent degradation. The normal Apo C-III is glycosylated. There are several polymorphic forms with varying amounts of SIALIC ACID (Apo C-III-0, Apo C-III-1, and Apo C-III-2).
A class of lipoproteins of small size (4-13 nm) and dense (greater than 1.063 g/ml) particles. HDL lipoproteins, synthesized in the liver without a lipid core, accumulate cholesterol esters from peripheral tissues and transport them to the liver for re-utilization or elimination from the body (the reverse cholesterol transport). Their major protein component is APOLIPOPROTEIN A-I. HDL also shuttle APOLIPOPROTEINS C and APOLIPOPROTEINS E to and from triglyceride-rich lipoproteins during their catabolism. HDL plasma level has been inversely correlated with the risk of cardiovascular diseases.
A glycoprotein component of HIGH-DENSITY LIPOPROTEINS that transports small hydrophobic ligands including CHOLESTEROL and STEROLS. It occurs in the macromolecular complex with LECITHIN CHOLESTEROL ACYLTRANSFERASE. Apo D is expressed in and secreted from a variety of tissues such as liver, placenta, brain tissue and others.
Lipid-protein complexes involved in the transportation and metabolism of lipids in the body. They are spherical particles consisting of a hydrophobic core of TRIGLYCERIDES and CHOLESTEROL ESTERS surrounded by a layer of hydrophilic free CHOLESTEROL; PHOSPHOLIPIDS; and APOLIPOPROTEINS. Lipoproteins are classified by their varying buoyant density and sizes.
A 6.6-kDa protein component of VERY-LOW-DENSITY LIPOPROTEINS; INTERMEDIATE-DENSITY LIPOPROTEINS; and HIGH-DENSITY LIPOPROTEINS. Apo C-I displaces APO E from lipoproteins, modulate their binding to receptors (RECEPTORS, LDL), and thereby decrease their clearance from plasma. Elevated Apo C-I levels are associated with HYPERLIPOPROTEINEMIA and ATHEROSCLEROSIS.
A class of lipoproteins of very light (0.93-1.006 g/ml) large size (30-80 nm) particles with a core composed mainly of TRIGLYCERIDES and a surface monolayer of PHOSPHOLIPIDS and CHOLESTEROL into which are imbedded the apolipoproteins B, E, and C. VLDL facilitates the transport of endogenously made triglycerides to extrahepatic tissues. As triglycerides and Apo C are removed, VLDL is converted to INTERMEDIATE-DENSITY LIPOPROTEINS, then to LOW-DENSITY LIPOPROTEINS from which cholesterol is delivered to the extrahepatic tissues.
A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protoplasm, which are insoluble in water. They comprise the fats, fatty oils, essential oils, waxes, phospholipids, glycolipids, sulfolipids, aminolipids, chromolipids (lipochromes), and fatty acids. (Grant & Hackh's Chemical Dictionary, 5th ed)
A 241-kDa protein synthesized only in the INTESTINES. It serves as a structural protein of CHYLOMICRONS. Its exclusive association with chylomicron particles provides an indicator of intestinally derived lipoproteins in circulation. Apo B-48 is a shortened form of apo B-100 and lacks the LDL-receptor region.
An autosomal recessively inherited disorder caused by mutation of ATP-BINDING CASSETTE TRANSPORTERS involved in cellular cholesterol removal (reverse-cholesterol transport). It is characterized by near absence of ALPHA-LIPOPROTEINS (high-density lipoproteins) in blood. The massive tissue deposition of cholesterol esters results in HEPATOMEGALY; SPLENOMEGALY; RETINITIS PIGMENTOSA; large orange tonsils; and often sensory POLYNEUROPATHY. The disorder was first found among inhabitants of Tangier Island in the Chesapeake Bay, MD.
An enzyme secreted from the liver into the plasma of many mammalian species. It catalyzes the esterification of the hydroxyl group of lipoprotein cholesterol by the transfer of a fatty acid from the C-2 position of lecithin. In familial lecithin:cholesterol acyltransferase deficiency disease, the absence of the enzyme results in an excess of unesterified cholesterol in plasma. EC 184.108.40.206.
A class of lipoproteins of small size (18-25 nm) and light (1.019-1.063 g/ml) particles with a core composed mainly of CHOLESTEROL ESTERS and smaller amounts of TRIGLYCERIDES. The surface monolayer consists mostly of PHOSPHOLIPIDS, a single copy of APOLIPOPROTEIN B-100, and free cholesterol molecules. The main LDL function is to transport cholesterol and cholesterol esters to extrahepatic tissues.
Nephelometry and Turbidimetry
Chemical analysis based on the phenomenon whereby light, passing through a medium with dispersed particles of a different refractive index from that of the medium, is attenuated in intensity by scattering. In turbidimetry, the intensity of light transmitted through the medium, the unscattered light, is measured. In nephelometry, the intensity of the scattered light is measured, usually, but not necessarily, at right angles to the incident light beam.
ATP Binding Cassette Transporter 1
Cell surface proteins that bind lipoproteins with high affinity. Lipoprotein receptors in the liver and peripheral tissues mediate the regulation of plasma and cellular cholesterol metabolism and concentration. The receptors generally recognize the apolipoproteins of the lipoprotein complex, and binding is often a trigger for endocytosis.
Lipids containing one or more phosphate groups, particularly those derived from either glycerol (phosphoglycerides see GLYCEROPHOSPHOLIPIDS) or sphingosine (SPHINGOLIPIDS). They are polar lipids that are of great importance for the structure and function of cell membranes and are the most abundant of membrane lipids, although not stored in large amounts in the system.
A lipoprotein that resembles the LOW-DENSITY LIPOPROTEINS but with an extra protein moiety, APOPROTEIN (A) also known as APOLIPOPROTEIN (A), linked to APOLIPOPROTEIN B-100 on the LDL by one or two disulfide bonds. High plasma level of lipoprotein (a) is associated with increased risk of atherosclerotic cardiovascular disease.
Electrophoresis, Polyacrylamide Gel
An enzyme of the hydrolase class that catalyzes the reaction of triacylglycerol and water to yield diacylglycerol and a fatty acid anion. The enzyme hydrolyzes triacylglycerols in chylomicrons, very-low-density lipoproteins, low-density lipoproteins, and diacylglycerols. It occurs on capillary endothelial surfaces, especially in mammary, muscle, and adipose tissue. Genetic deficiency of the enzyme causes familial hyperlipoproteinemia Type I. (Dorland, 27th ed) EC 220.127.116.11.
Hyperlipoproteinemia Type IV
A hypertriglyceridemia disorder, often with autosomal dominant inheritance. It is characterized by the persistent elevations of plasma TRIGLYCERIDES, endogenously synthesized and contained predominantly in VERY-LOW-DENSITY LIPOPROTEINS (pre-beta lipoproteins). In contrast, the plasma CHOLESTEROL and PHOSPHOLIPIDS usually remain within normal limits.
ATP-Binding Cassette Transporters
A 34-kDa glycosylated protein. A major and most common isoform of apolipoprotein E. Therefore, it is also known as apolipoprotein E (ApoE). In human, Apo E3 is a 299-amino acid protein with a cysteine at the 112 and an arginine at the 158 position. It is involved with the transport of TRIGLYCERIDES; PHOSPHOLIPIDS; CHOLESTEROL; and CHOLESTERYL ESTERS in and out of the cells.
Cholesterol which is contained in or bound to very low density lipoproteins (VLDL). High circulating levels of VLDL cholesterol are found in HYPERLIPOPROTEINEMIA TYPE IIB. The cholesterol on the VLDL is eventually delivered by LOW-DENSITY LIPOPROTEINS to the tissues after the catabolism of VLDL to INTERMEDIATE-DENSITY LIPOPROTEINS, then to LDL.
Cholesterol Ester Transfer Proteins
A mixture of very-low-density lipoproteins (VLDL), particularly the triglyceride-poor VLDL, with slow diffuse electrophoretic mobilities in the beta and alpha2 regions which are similar to that of beta-lipoproteins (LDL) or alpha-lipoproteins (HDL). They can be intermediate (remnant) lipoproteins in the de-lipidation process, or remnants of mutant CHYLOMICRONS and VERY-LOW-DENSITY LIPOPROTEINS which cannot be metabolized completely as seen in FAMILIAL DYSBETALIPOPROTEINEMIA.
Scavenger Receptors, Class B
Serum Amyloid A Protein
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
A technique that combines protein electrophoresis and double immunodiffusion. In this procedure proteins are first separated by gel electrophoresis (usually agarose), then made visible by immunodiffusion of specific antibodies. A distinct elliptical precipitin arc results for each protein detectable by the antisera.
Hyperlipoproteinemia Type V
A severe type of hyperlipidemia, sometimes familial, that is characterized by the elevation of both plasma CHYLOMICRONS and TRIGLYCERIDES contained in VERY-LOW-DENSITY LIPOPROTEINS. Type V hyperlipoproteinemia is often associated with DIABETES MELLITUS and is not caused by reduced LIPOPROTEIN LIPASE activity as in HYPERLIPOPROTEINEMIA TYPE I .
An autosomal recessive disorder of lipid metabolism. It is caused by mutation of the microsomal triglyceride transfer protein that catalyzes the transport of lipids (TRIGLYCERIDES; CHOLESTEROL ESTERS; PHOSPHOLIPIDS) and is required in the secretion of BETA-LIPOPROTEINS (low density lipoproteins or LDL). Features include defective intestinal lipid absorption, very low serum cholesterol level, and near absent LDL.
A large group of structurally diverse cell surface receptors that mediate endocytic uptake of modified LIPOPROTEINS. Scavenger receptors are expressed by MYELOID CELLS and some ENDOTHELIAL CELLS, and were originally characterized based on their ability to bind acetylated LOW-DENSITY LIPOPROTEINS. They can also bind a variety of other polyanionic ligand. Certain scavenger receptors can internalize micro-organisms as well as apoptotic cells.
Amino Acid Sequence
The metabolic process of breaking down LIPIDS to release FREE FATTY ACIDS, the major oxidative fuel for the body. Lipolysis may involve dietary lipids in the DIGESTIVE TRACT, circulating lipids in the BLOOD, and stored lipids in the ADIPOSE TISSUE or the LIVER. A number of enzymes are involved in such lipid hydrolysis, such as LIPASE and LIPOPROTEIN LIPASE from various tissues.
Rats, Inbred Strains
High-Density Lipoproteins, Pre-beta
A highly dense subclass of the high-density lipoproteins, with particle sizes below 7 nm. They are also known as nascent HDL, composed of a few APOLIPOPROTEIN A-I molecules which are complexed with PHOSPHOLIPIDS. The lipid-poor pre-beta-HDL particles serve as progenitors of HDL3 and then HDL2 after absorption of free cholesterol from cell membranes, cholesterol esterification, and acquisition of apolipoproteins A-II, Cs, and E. Pre-beta-HDL initiate the reverse cholesterol transport process from cells to liver.
Receptors on the plasma membrane of nonhepatic cells that specifically bind LDL. The receptors are localized in specialized regions called coated pits. Hypercholesteremia is caused by an allelic genetic defect of three types: 1, receptors do not bind to LDL; 2, there is reduced binding of LDL; and 3, there is normal binding but no internalization of LDL. In consequence, entry of cholesterol esters into the cell is impaired and the intracellular feedback by cholesterol on 3-hydroxy-3-methylglutaryl CoA reductase is lacking.
Molecular Sequence Data
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Lecithin Acyltransferase Deficiency
An autosomal recessively inherited disorder caused by mutation of LECITHIN CHOLESTEROL ACYLTRANSFERASE that facilitates the esterification of lipoprotein cholesterol and subsequent removal from peripheral tissues to the liver. This defect results in low HDL-cholesterol level in blood and accumulation of free cholesterol in tissue leading to a triad of CORNEAL OPACITY, hemolytic anemia (ANEMIA, HEMOLYTIC), and PROTEINURIA.
Hyperlipidemia, Familial Combined
Leukocyte differentiation antigens and major platelet membrane glycoproteins present on MONOCYTES; ENDOTHELIAL CELLS; PLATELETS; and mammary EPITHELIAL CELLS. They play major roles in CELL ADHESION; SIGNAL TRANSDUCTION; and regulation of angiogenesis. CD36 is a receptor for THROMBOSPONDINS and can act as a scavenger receptor that recognizes and transports oxidized LIPOPROTEINS and FATTY ACIDS.
Hyperlipoproteinemia Type II
The process of converting an acid into an alkyl or aryl derivative. Most frequently the process consists of the reaction of an acid with an alcohol in the presence of a trace of mineral acid as catalyst or the reaction of an acyl chloride with an alcohol. Esterification can also be accomplished by enzymatic processes.
Colloids formed by the combination of two immiscible liquids such as oil and water. Lipid-in-water emulsions are usually liquid, like milk or lotion. Water-in-lipid emulsions tend to be creams. The formation of emulsions may be aided by amphiphatic molecules that surround one component of the system to form MICELLES.
Electrophoresis, Agar Gel
Unctuous combustible substances that are liquid or easily liquefiable on warming, and are soluble in ether but insoluble in water. Such substances, depending on their origin, are classified as animal, mineral, or vegetable oils. Depending on their behavior on heating, they are volatile or fixed. (Dorland, 28th ed)
Centrifugation, Density Gradient
Conditions with abnormally low levels of BETA-LIPOPROTEINS (low density lipoproteins or LDL) in the blood. It is defined as LDL values equal to or less than the 5th percentile for the population. They include the autosomal dominant form involving mutation of the APOLIPOPROTEINS B gene, and the autosomal recessive form involving mutation of the microsomal triglyceride transfer protein. All are characterized by low LDL and dietary fat malabsorption.
Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation.
Protein Structure, Secondary
The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level.
beta 2-Glycoprotein I
A 44-kDa highly glycosylated plasma protein that binds phospholipids including CARDIOLIPIN; APOLIPOPROTEIN E RECEPTOR; membrane phospholipids, and other anionic phospholipid-containing moieties. It plays a role in coagulation and apoptotic processes. Formerly known as apolipoprotein H, it is an autoantigen in patients with ANTIPHOSPHOLIPID ANTIBODIES.
Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.
Phospholipid Transfer Proteins
The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain).
A polypeptide hormone of approximately 25 kDa that is produced by the SYNCYTIOTROPHOBLASTS of the PLACENTA, also known as chorionic somatomammotropin. It has both GROWTH HORMONE and PROLACTIN activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist.
Radioisotope Dilution Technique
Hyperlipoproteinemia Type III
An autosomal recessively inherited disorder characterized by the accumulation of intermediate-density lipoprotein (IDL or broad-beta-lipoprotein). IDL has a CHOLESTEROL to TRIGLYCERIDES ratio greater than that of VERY-LOW-DENSITY LIPOPROTEINS. This disorder is due to mutation of APOLIPOPROTEINS E, a receptor-binding component of VLDL and CHYLOMICRONS, resulting in their reduced clearance and high plasma levels of both cholesterol and triglycerides.
Vitamin A is linked to the expression of the AI-CIII-AIV gene cluster in familial combined hyperlipidemia. (1/1178)There is growing evidence of the capacity of vitamin A to regulate the expression of the genetic region that encodes apolipoproteins (apo) A-I, C-III, and A-IV. This region in turn has been proposed to modulate the expression of hyperlipidemia in the commonest genetic form of dyslipidemia, familial combined hyperlipidemia (FCHL). The hypothesis tested here was whether vitamin A (retinol), by controlling the expression of the AI-CIII-AIV gene cluster, plays a role in modulating the hyperlipidemic phenotype in FCHL. We approached the subject by studying three genetic variants of this region: a C1100-T transition in exon 3 of the apoC-III gene, a G3206-T transversion in exon 4 of the apoC-III gene, and a G-75-A substitution in the promoter region of the apoA-I gene. The association between plasma vitamin A concentrations and differences in the plasma concentrations of apolipoproteins A-I and C-III based on the different genotypes was assessed in 48 FCHL patients and 74 of their normolipidemic relatives. The results indicated that the subjects carrying genetic variants associated with increased concentrations of apoA-I and C-III (C1100-T and G-75-A) also presented increased plasma concentrations of vitamin A. This was only observed among the FCHL patients, which suggested that certain characteristics of these patients contributed to this association. The G3206-T was not associated with changes in either apolipoprotein concentrations or in vitamin A. In summary, we report a relationship between genetically determined elevations of proteins of the AI-CIII-AIV gene cluster and vitamin A in FCHL patients. More studies will be needed to confirm that vitamin A plays a role in FCHL which might also be important for its potential application to therapeutical approaches. (+info)
Regulation of the human apolipoprotein AIV gene expression in transgenic mice. (2/1178)The apolipoprotein (Apo) AI-CIII-AIV gene cluster has a complex pattern of gene expression that is modulated by both gene- and cluster-specific cis-acting elements. In particular the regulation of Apo AIV expression has been previously studied in vivo and in vitro including several transgenic mouse lines but a complete, consistent picture of the tissue-specific controls is still missing. We have analysed the role of the Apo AIV 3' flanking sequences in the regulation of gene expression using both in vitro and in vivo systems including three lines of transgenic mice. The transgene consisted of a human fragment containing 7 kb of the 5' flanking region, the Apo AIV gene itself and 6 kb of the 3' flanking region (-7+6 Apo AIV). Accurate analysis of the Apo AIV mRNA levels using quantitative PCR and Northern blots showed that the 7+6 kb Apo AIV fragment confers liver-specific regulation in that the human Apo AIV transgene is expressed at approximately the same level as the endogenous mouse Apo AIV gene. In contrast, the intestinal regulation of the transgene did not follow, the pattern observed with the endogenous gene although it produced a much higher intestinal expression following the accepted human pattern. Therefore, this animal model provides an excellent substrate to design therapeutic protocols for those metabolic derangements that may benefit from variations in Apo AIV levels and its anti-atherogenic effect. (+info)
Lipid and apolipoprotein predictors of atherosclerosis in youth: apolipoprotein concentrations do not materially improve prediction of arterial lesions in PDAY subjects. The PDAY Research Group. (3/1178)We compared serum lipid and apolipoprotein predictors of atherosclerosis in cases from the multicenter study, Pathobiological Determinants of Atherosclerosis in Youth (PDAY). The lipid measures included HDL cholesterol (HDL-C) and non-HDL-C, and the apolipoprotein measures included concentrations of apoA1, apoB, and Lp(a), and sizes of the apo(a) proteins. We tested whether the apolipoprotein measures predicted atherosclerotic lesions as well as the more traditional lipid measures. We estimated extent of lesions as fatty streaks or raised lesions (fibrous plaques, complicated or calcified lesions) in 3 sites: thoracic aorta, abdominal aorta, and right coronary artery. Neither apoA1 nor apoB measures were as strongly or consistently correlated with extent of lesions as the corresponding lipid measure (HDL-C and non-HDL-C, respectively). Beyond the basic model that included sex, age, race, smoking status, hypertension, and the lipid measures, apoA1 and apoB added only an average 1.3% increased explanatory ability to the model, whereas HDL-C plus non-HDL-C added an average 2.5%. The results suggest that the traditional lipid measures are more useful than apolipoprotein measures for detecting young persons at high risk of precocious atherosclerosis. Because of large racial differences, the two Lp(a)-related measures, Lp(a) concentrations and apo(a) size, were evaluated in blacks and whites separately. Under these circumstances, neither of the Lp(a)-related measures was strongly or consistently correlated with extent of lesions. (+info)
Serum lipoprotein(a) and apolipoprotein(a) phenotypes in patients with rheumatoid arthritis. (4/1178)OBJECTIVE: To determine serum lipoprotein(a) (Lp[a]) concentrations and to analyze the apolipoprotein(a) (Apo[a]) phenotype in patients with rheumatoid arthritis (RA). METHODS: The subjects included 131 patients with RA and 200 healthy control subjects. Serum Lp(a) concentrations were measured by enzyme-linked immunosorbent assay, and the Apo(a) phenotype was determined by immunoblotting. HLA-DR typing was also done. RESULTS: The mean serum Lp(a) level was significantly higher (P < 0.001) in the RA patients (27.5 mg/dl) than in the controls (15.0 mg/dl). The S3 allele was found in 70.0% of the patients versus 39.5% of the controls (P < 0.001). There was no significant difference in HLA-DR4 positivity between patients with and without the S3 phenotype. CONCLUSION: The serum Lp(a) level was increased in patients with RA, possibly partly because of S3 phenotype predominance. (+info)
Lipoprotein(a) levels and apolipoprotein(a) isoforms related to life style risk factors. (5/1178)Lipoprotein(a) [Lp(a)] has been considered to be a predictor of premature coronary heart disease and other cardiovascular diseases. Lp(a) levels are largely genetically determined, but the detailed mechanism of Lp(a) elevation is uncertain. We examined the association between Lp(a) levels and apolipoprotein(a) [apo(a)] phenotypes as well as that of Lp(a) level and other various conditions. The subjects were 280 healthy Japanese (102 males and 178 females) aged 39 to 70 years who were living in a rural community in 1992. We obtained apo(a) phenotypes determined by SDS-PAGE as well as Lp(a) levels and other cardiovascular risk factors. We combined apo(a) phenotypes form 4 groups according to molecular weights (from high apo(a) molecular weight to low: I, II, III and IV). Lp(a) levels were associated with apo(a) phenotype-groups, that is, they were inversely associated with apo(a) molecular weight. Small apo(a) phenotypes were less frequent than large ones. The median Lp(a) level was higher in smoking (29.2 mg/dL) than in non-smoking subjects (18.5 mg/dL) in phenotype-group III. Adjusted means of total cholesterol and fibrinogen levels in apo(a) phenotype-group IV were the highest of all phenotype-groups. Age, apo(a) phenotype, smoking status, total cholesterol and fibrinogen were positively correlated with Lp(a) levels by multiple regression analysis. Lp(a) levels were found to be mainly associated with apo(a) phenotype, but varied broadly within the same apo(a) phenotype at various conditions, such as smoking status and high total cholesterol. (+info)
Effect of cardiopulmonary bypass and heparin on plasma levels of Lp(a) and Apo(a) fragments. (6/1178)Fragments of apolipoprotein(a) [apo(a)], the distinctive glycoprotein of lipoprotein(a) [Lp(a)], are present in human plasma and urine and have been implicated in the development of atherosclerosis. The mechanism responsible for the generation of apo(a) fragments in vivo is poorly understood. In this study, we examined the plasma levels of Lp(a) and apo(a) fragments [or free apo(a)] and urinary apo(a) in 15 subjects who underwent cardiac surgery necessitating cardiopulmonary bypass. We also measured the plasma concentration and activity of polymorphonuclear elastase, an Lp(a)-cleaving enzyme in vitro, and plasma levels of C-reactive protein. Despite a marked activation of polymorphonuclear cells and a pronounced inflammatory response, as documented by an 8-fold and a 35-fold increase in plasma levels of polymorphonuclear elastase and C-reactive protein, respectively, the proportion of plasma free apo(a) to Lp(a) and urinary excretion of apo(a) remained unchanged over a 7-day period after surgery, and polymorphonuclear elastase activity remained undetectable in plasma. No fragmentation of apo(a) was observed ex vivo in plasma samples collected before and after surgery. These data indicate that in this model, apo(a) is not fragmented in plasma and are consistent with the hypothesis that apo(a) fragments result from a constitutively active tissue mechanism that is not modified by cardiac surgery with cardiopulmonary bypass. (+info)
Depletion of pre beta 1LpA1 and LpA4 particles by mast cell chymase reduces cholesterol efflux from macrophage foam cells induced by plasma. (7/1178)Exposure of the LpA1-containing particles present in HDL3 and plasma to a minimal degree of proteolysis by the neutral protease chymase from exocytosed rat mast cell granules (granule remnants) leads to a reduction in the high-affinity component of cholesterol efflux from macrophage foam cells. In this study, we demonstrate for the first time, a role for mast cell chymase in the depletion of the lipid-poor minor components of HDL that are specifically involved in reverse cholesterol transport as initial acceptors of cellular cholesterol. Thus, addition of proteolytically active granule remnants or human skin chymase to cholesterol-loaded macrophages of mouse or human origin incubated with human apoA1, ie, a system in which prebeta1LpA1 is generated, resulted in a sharp reduction in the high-affinity cholesterol efflux promoted by apoA1. As determined by nondenaturing 2-dimensional polyacrylamide gradient gel electrophoresis, the granule remnants effectively depleted the prebeta1LpA1, but not the alphaLpA1, in HDL3 and in plasma during incubation at 37 degrees C for <1 hour. Incubation of plasma with granule remnants for 1 hour also led to near disappearance of the LpA4-1 and LpA4-2 particles, but did not affect the distribution of the apoA2-containing lipoproteins present in the plasma. We conclude that the reduced ability of granule remnant-treated HDL3 and granule remnant-treated plasma to induce cholesterol efflux from macrophage foam cells is caused by selective depletion by mast cell chymase of quantitatively minor A1- and A4-containing subpopulations of HDL. Because these particles, ie, prebeta1LpA1 and LpA4, are efficient acceptors of cholesterol from cell surfaces, their depletion by mast cells may block the initiation of reverse cholesterol transport in vivo and thereby favor foam cell formation in the arterial intima, the site of atherogenesis. (+info)
Seminal plasma choline phospholipid-binding proteins stimulate cellular cholesterol and phospholipid efflux. (8/1178)Bovine seminal plasma (BSP) contains a family of phospholipid-binding proteins (BSP-A1/-A2, BSP-A3 and BSP-30-kDa, collectively called BSP proteins) that potentiate sperm capacitation induced by high-density lipoproteins. We showed recently that BSP proteins stimulate cholesterol efflux from epididymal spermatozoa and play a role in capacitation. Here, we investigated whether or not BSP proteins could stimulate cholesterol and phospholipid efflux from fibroblasts. Cells were radiolabeled ([3H]cholesterol or [3H]choline) and the appearance of radioactivity in the medium was determined in the presence of BSP proteins. Alcohol precipitates of bovine seminal plasma (designated crude BSP, cBSP), purified BSP-A1/-A2, BSP-A3 and BSP-30-kDa proteins stimulated cellular cholesterol and choline phospholipid efflux from fibroblasts. Efflux mechanistic differences were observed between BSP proteins and other cholesterol acceptors. Preincubation of BSP-A1/-A2 proteins with choline prevented cholesterol efflux, an effect not observed with apolipoprotein A-I. Also, the rate of BSP-induced efflux was rapid during the first 20 min, but leveled off thereafter in contrast to a relatively slow, but constant, rate of cholesterol efflux mediated by apolipoprotein A-I, apolipoprotein A-I-containing reconstituted lipoproteins (LpA-I) and high-density lipoproteins. These results indicate that fibroblasts are a good cell model to study the mechanism of lipid efflux mediated by BSP proteins. (+info)
Human Apolipoprotein A-IV Reduces Secretion of Proinflammatory Cytokines and Atherosclerotic Effects of a Chronic Infection...
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Gender and ethnic differences in a case-control study of dyslipidemia: using the apolipoprotein A-V gene as an exemplar in...
TY - JOUR. T1 - Gender and ethnic differences in a case-control study of dyslipidemia. T2 - using the apolipoprotein A-V gene as an exemplar in cardiovascular genetics.. AU - Wung, Shu Fen. AU - Aouizerat, Bradley. PY - 2003. Y1 - 2003. N2 - Common, complex genetic disorders such as coronary heart disease (CHD) frequently show large population differences, contributing to health disparities. It is also well known that CHD risk factor profiles and the frequency of coronary events differ by gender. Study of premature CHD has revealed that apolipoproteins are important discriminating factors for distinguishing individuals with CHD. Recent findings indicated that apolipoprotein A-V (APOA-V) gene promoter polymorphisms are an important determinant of plasma triglycerides (TG) and lipoprotein cholesterol, and a risk factor for CHD. Variations in APOA-V may have varying impacts in different ethnic groups. The purpose of this interdisciplinary genetic research project was to determine (1) the ...
Variable effects of different corticosteroids on plasma lipids, apolipoproteins, and hepatic apolipoprotein mRNA levels in rats
Treatment of male rats with hydrocortisone provoked a dose- and time-dependent decrease in plasma cholesterol concentration without a change in plasma triglyceride levels. In contrast, administration of triamcinolone and dexamethasone at equipotent glucocorticoid doses increased plasma cholesterol and triglyceride levels, respectively. Small effects on apolipoprotein E (apo E) and apo B mRNA levels were observed, but all corticosteroids increased apo A-I and apo A-IV mRNA and decreased apo A-II mRNA levels in the liver. Triamcinolone and dexamethasone, however, were three times more potent in stimulating hepatic apo A-IV gene expression than was hydrocortisone, whereas liver apo A-I and apo A-II mRNA levels were altered to a similar extent by all corticosteroids. Plasma apo A-I and apo B concentrations always varied in a similar fashion with their respective liver mRNA levels after administration of the distinct corticoids. For apo A-IV and apo E, discrepancies between plasma and liver mRNA levels after
Apolipoprotein A-IV/ApoA4 Antibody Pair (H00000337-AP21): Novus Biologicals
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Apolipoprotein AV: Low concentration, high impact :: TNO Repository
Chemicals / CAS: lipoprotein lipase, 83137-80-8, 9004-02-8; APOA5 protein, human; Apolipoproteins A; Apolipoproteins; Triglycerides ...
APOA5 - SNPedia
SNPs in the apolipoprotein A-V gene, APOA5, have primarily been associated with plasma lipoprotein levels and associated downstream consequences, such as weight gain and heart disease risk. Significant SNPs of APOA5 include: ...
Apolipoproteins - LabCE.com, Laboratory Continuing Education
Apolipoproteins have multiple roles. One role is to increase the overall solubility of the lipid particle, helping it to dissolve in the aqueous environment of the blood (apolipoproteins are amphipathic, or detergent-like proteins). Apolipoproteins can also function as enzyme co-factors (receptor ligands), facilitating the transfer of their lipid cargo to specific cells. Thus, the apoliproteins are the smart or working-end of the lipoprotein particle. The apolipoproteins dictate where the particles will dock and where they can bind, and in so doing the apolipoproteins regulate lipid metabolism in the body. So although the particles are composed of phospholipids and have lipid cargo, the few proteins on their surface are what give them their collective name of lipoproteins ...
APOA2 - Apolipoprotein A-II - Homo sapiens (Human) - APOA2 gene & protein
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
Absolute Quantification of Plasma Apolipoproteins for Cardiovascular Disease Risk Prediction | SpringerLink
Apolipoproteins have important structural and functional roles in several lipoprotein particles. Apolipoproteins regulate lipid metabolism, adipose tissue, and energy production and serve major...
Apolipoprotein A-I (ApoA-I) - Pipeline Review, H1 2016 : ReportsnReports
[55 Pages Report] Check for Discount on Apolipoprotein A-I (ApoA-I) - Pipeline Review, H1 2016 report by Global Markets Direct. Global Markets Directs, Apolipoprotein A-I (ApoA-I) - Pipeline...
Anti-APOA1/Apoa I Antibody
Polyclonal antibody for APOA I/APOA1 detection. Host: Rabbit.Size: 100μg/vial. Tested applications: WB. Reactive species: Human. APOA I/APOA1 information: Molecular Weight: 30778 MW; Subcellular Localization: Secreted; Tissue Specificity: Major protein of
Apolipoprotein Antibodies (APO) | Bio-Rad
We have brought together our full range of anti-APO antibodies into one place, making it easier for you to locate exactly what you need.
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Immune-regulation of the apolipoprotein A-I/C-III/A-IV gene cluster in experimental inflammation. - Oxford Cardiovascular...
Apolipoprotein A-IV is a member of the apo A-I/C-III/A-IV gene cluster. In order to investigate its hypothetical coordinated regulation, an acute phase was induced in pigs by turpentine oil injection. The hepatic expression of the gene cluster as well as the plasma levels of apolipoproteins were monitored at different time periods. Furthermore, the involvement of the inflammatory mediators interleukins 1 and 6 and tumor necrosis factor in the regulation of this gene cluster was tested in cultured pig hepatocytes, incubated with those mediators and apo A-I/C-III/A-IV gene cluster expression at the mRNA level was measured. In response to turpentine oil-induced inflammation, a decreased hepatic apo A-IV mRNA expression was observed (independent of apo A-I and apo C-III mRNA) not correlating with the plasma protein levels. The distribution of plasma apo A-IV experienced a shift from HDL to larger particles. In contrast, the changes in apo A-I and apo C-III mRNA were reflected in their corresponding plasma
Validation of semaphorin 7A and ala-β-his-dipeptidase as biomarkers associated with the conversion from clinically isolated...
In a previous proteomics study using pooled cerebrospinal fluid (CSF) samples, we proposed apolipoprotein AI, apolipoprotein AIV, vitronectin, plasminogen, semaphorin 7A, and ala-β-his-dipeptidase as candidate biomarkers associated with the conversion to clinically definite multiple sclerosis (CDMS) in patients with clinically isolated syndromes (CIS). Here, we aimed to validate these results in individual CSF samples using alternative techniques. In a first replication study, levels of apolipoproteins AI and AIV, vitronectin, and plasminogen were measured by ELISA in CSF and serum of 56 CIS patients (29 patients who converted to CDMS (MS converters) and 27 patients who remained with CIS during follow-up (MS non-converters)) and 26 controls with other neurological disorders. Semaphorin 7A and ala-β-his-dipeptidase levels were determined by selected reaction monitoring (SRM) in CSF of 36 patients (18 MS converters, 18 non-converters) and 20 controls. In a second replication study, apolipoprotein AI
Apolipoprotein A-II/ApoA2 Antibodies: Novus Biologicals
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RT² qPCR Primer Assay for Human APOA4
The RT² qPCR Primer Assay is the most reliable SYBR® Green-based quantitative real-time PCR assay for gene expression analysis. Our experimentally verified design algorithm yields gene-specific qPCR assays characterized by uniform and high PCR efficiencies and standardized amplification conditions. Every RT² Primer Assay is subjected to rigorous experimental verification. Single product amplification of the correct size and high PCR efficiency are guaranteed when using the appropriate RT² qPCR Master Mixes. The uniform PCR amplification efficiencies and PCR conditions of the RT² qPCR Primer Assays provide an accurate and scalable solution for multiple gene expression analyses. Browse Primer Assays By Gene ...
RT² qPCR Primer Assay for Human APOA2
The RT² qPCR Primer Assay is the most reliable SYBR® Green-based quantitative real-time PCR assay for gene expression analysis. Our experimentally verified design algorithm yields gene-specific qPCR assays characterized by uniform and high PCR efficiencies and standardized amplification conditions. Every RT² Primer Assay is subjected to rigorous experimental verification. Single product amplification of the correct size and high PCR efficiency are guaranteed when using the appropriate RT² qPCR Master Mixes. The uniform PCR amplification efficiencies and PCR conditions of the RT² qPCR Primer Assays provide an accurate and scalable solution for multiple gene expression analyses. Browse Primer Assays By Gene ...
ApoA-IV | definition of apoA-IV by Medical dictionary
Looking for online definition of apoA-IV in the Medical Dictionary? apoA-IV explanation free. What is apoA-IV? Meaning of apoA-IV medical term. What does apoA-IV mean?
A genome-wide association meta-analysis on apolipoprotein A-IV concentrations. - PubMed - NCBI
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JLR] Good Cholesterol, Good Lungs
High-density lipoprotein is predominantly composed of the apolipoproteins apoAI and apoAII. These apolipoproteins are responsible for collecting lipids from arteries and transporting them back to the liver for reutilization, which provides protection against cardiovascular diseases. While many studies examine the cardiovascular effects of HDL and its apolipoproteins, few have looked at whether these molecules maintain the health of other bodily systems and organs. In this study, the authors show that apoA1 maintains pulmonary function in mice. Along with inhibiting stressors such as proinflammatory HDL formation and the activity of paranoxonase 1 (PON1) and 3-nitrotyrosine (3NT) in the plasma, apoA1 was shown to limit pulmonary inflammation and oxidative stress markers, such as 3NT, 4-hydroxynonenal adducts (4-HNE), transforming growth factor-β (TGFβ), xanthineoxidase, myeloperoxidase and endothelial nitric oxide synthase in the lung milieu. Additionally, apoA1 was shown to enhance arterial ...
anti-Apo antibody product blog
Blog on anti-Apo antibody product: The Apo lpa (Catalog #MBS534186) is an Antibody produced from Goat and is intended for research purposes ...
Gentaur Molecular :Alpha Dia \ Anti Human Plasma Apolipoprotein A I protein antiserum \ APOA11-S
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Anti Human Apolipoprotein A1 Antibody | Bio-Rad
|strong|Sheep anti Human Apolipoprotein A1 antibody|/strong| reacts with human apolipoprotein A1 and does not react with other human plasma proteins. In ELISA the following reactivities are observed:|…
Non-Mammalian Host Systems for the Expression of Mammalian Apolipoproteins | Springer for Research & Development
Recombinant mammalian apolipoproteins have been expressed in a variety of cultured mammalian cell lines (Reardon et al. 1986; Mallory et al. 1987; Blackhart et al. 1990; Yao et al. 1991), transgenic...
NSJ Bioreagents | V8552
This highly specific human protein microarray specificity validated APOAIV antibody is suitable for use in IHC-P and is guaranteed to work as stated on the product data sheet. | V8552
Defects in Synthesis of Apolipoprotein A-I
Cardiology news, research and treatment articles offering cardiology healthcare professionals cardiology information and resources to keep them informed.
APOA5 Human | ProSpec
APOA5 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 366 amino acids (24-366 a.a.) and having a molecular mass of 41.3kDa.
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Isolation and characterization of several plasma apolipoproteins of common marmoset monkey. | Arteriosclerosis, Thrombosis, and...
To explore the potential of the common marmoset monkey (Callithrix jacchus) as a model for human plasma lipoprotein metabolism, several marmoset apolipoproteins were isolated and characterized in this study. Based on several properties, including molecular weight, amino acid composition, and sequence, the marmoset apolipoproteins are strikingly similar to human apolipoprotein (apo) A-I, A-II, C-III, and A-IV. The first 54 residues of marmoset apo A-I showed 87% sequence identity with the corresponding region of human apo A-I. Amino-terminal sequence analysis of a minor basic apo A-I isoform revealed that it contained an amino-terminal hexapeptide extension (Arg-His-Phe-Gln-Gln-) identical to that found in human proapo A-I. Like apo A-II in most nonhuman primates, marmoset apo-A-II differed from human apo A-II in that it did not contain cysteine and therefore existed as a monomer. The complete amino acid sequence of marmoset apo A-II was deduced. The protein contains 77 amino acids, as does human ...
The amphipathic helix in the exchangeable apolipoproteins : a review of secondary structure and function - Institutional...
Site-directed mutagenesis and other molecular biology-based techniques are now available for probing the amphipathic alpha-helix structural motif in the exchangeable apolipoproteins. Here we survey the published literature on lipid-binding and functional domains in apolipoproteins A-I, A-II, A-IV, C-I, C-II, C-III, and E and compare these results with recently developed computer methods for analysis of the location and properties of amphipathic helixes. This comparison suggests that there are at least three distinct classes of amphipathic helixes (classes A, Y, and G*) in the exchangeable apolipoproteins whose distribution varies within and between the seven apolipoproteins. This comparison further suggests that lipid affinity resides largely in class A amphipathic helixes (Segrest, J. P., et al. 1990. Proteins. 8: 103) and that variations in structure and/or numbers of class A domains in individual apolipoproteins allow a range of lipid affinities from high to low. The positions of the four a ...
The apolipoprotein A-I gene is actively expressed in the rapidly myelinating avian peripheral nerve. | Journal of Cell Biology ...
The expression of the apolipoprotein A-I (apo A-I) gene was investigated in the myelinating sciatic nerve. Hybridization analysis with an apo A-I cDNA probe obtained from a cDNA library of mRNA isolated from rapidly myelinating chick sciatic nerve indicated that apo A-I coding transcripts increase during development in the chick sciatic nerve in parallel with the increase of myelin lamellae. Substantial apo A-I-like immunoreactivity in chick sciatic nerve homogenates was detected by Western blotting. The amount of antigen increased from the 15-d embryonic stage to 1 d posthatch and then decreased. Two subcellular fractions corresponding to the cytoplasmic compartments were particularly enriched in apo A-I. apo A-I immunoreactivity was also found in highly purified myelin preparations. Immunohistochemical staining provided further evidence for the presence of apo A-I in the endoneurial compartment of the sciatic nerve. Electron microscopic examination of these fractions after negative staining ...
Apolipoprotein - Wikipedia
Apolipoproteins are proteins that bind lipids (oil-soluble substances such as fat and cholesterol) to form lipoproteins. They transport the lipids through the lymphatic and circulatory systems. The lipid components of lipoproteins are insoluble in water. However, because of their detergent-like (amphipathic) properties, apolipoproteins and other amphipathic molecules (such as phospholipids) can surround the lipids, creating the lipoprotein particle that is itself water-soluble, and can thus be carried through water-based circulation (i.e., blood, lymph). Apolipoproteins also serve as enzyme cofactors, receptor ligands, and lipid transfer carriers that regulate the metabolism of lipoproteins and their uptake in tissues. In lipid transport, apolipoproteins function as structural components of lipoprotein particles, cofactors for enzymes and ligands for cell-surface receptors. In particular, apoA1 is the major protein component of high-density lipoproteins; apoA4 is thought to act primarily in ...
Purification of biologically active apolipoproteins by chromatofocussing<...
TY - JOUR. T1 - Purification of biologically active apolipoproteins by chromatofocussing. AU - McLeod, Roger. AU - Lacko, Andras G.. AU - Pritchard, P. Haydn. AU - Frohlich, Jiri. PY - 1986/1/1. Y1 - 1986/1/1. N2 - Chromatofocussing has been used to isolate homogeneous apolipoproteins (apo) from human very-low-density lipoproteins and high-density lipoproteins with protein recovery of 70%. The inclusion of sulfhydryl-reducing agent (dithiothreitol) was required during solubilization of the lipoproteins (following delipidation) to achieve reproducible elution profiles. Removal of polyvalent buffers from apoproteins was rapidly accomplished on small columns of hydroxylapatite. The biological activity of purified apo AI and apo CII was confirmed by assessment of their ability to activate lecithin:cholesterol acyltransferase or lipoprotein lipase, respectively. Functional properties of isolated apo E were assessed by in vitro interaction with the low-density lipoprotein receptor expressed by ...
Human Apo AIV ELISA | EZHAP0A4-73K
This Human Apo AIV ELISA is used to measure & quantify Apo AIV levels in Metabolism research. Find MSDS or SDS, a COA, data sheets and more information.
APOA2 - Wikipedia
Tsao YK, Wei CF, Robberson DL, Gotto AM, Chan L (Dec 1985). Isolation and characterization of the human apolipoprotein A-II gene. Electron microscopic analysis of RNA:DNA hybrids, nucleotide sequence, identification of a polymorphic MspI site, and general structural organization of apolipoprotein genes. The Journal of Biological Chemistry. 260 (28): 15222-31. PMID 2415515 ...
Recombinant Apolipoprotein A5 (APOA5), Cat#RPU40343 - Biomatik
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Apolipoproteins | ProSpec
ProSpecs Apolipoproteins include: Clusterin Human Recombinant, Clusterin Rat Recombinant, Apolipoprotein-D Human Recombinant, Human Apolipoprotein-J, Apolipoprotein-J Canine Recombinant
GENETIC-VARIATION AT THE APOLIPOPROTEIN GENE LOCI CONTRIBUTE TO RESPONSE OF PLASMA-LIPIDS TO DIETARY CHANGE - UCL Discovery
UCL Discovery is UCLs open access repository, showcasing and providing access to UCL research outputs from all UCL disciplines.
Pharmacology of apolipoprotein A-I
The role of HDL and its main protein component the apolipoprotein A-I as being antiatherogenic is well established. Experimental data give support for the involvement of at least three different types of mechanism: (1) the reverse cholesterol transport, (2) anti-inflammatory mechanisms and (3) antit …
Human Apolipoprotein A I peptide (ab66674) References
References for Abcams Human Apolipoprotein A I peptide (ab66674). Please let us know if you have used this product in your publication
Gentaur Molecular :Equitech \ Goat Anti Human Apolipoprotein A 1, 500ml \ GAHAPA-0500
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anti-Apolipoprotein A2 antibody (HRP) | GeneTex
Apolipoprotein A2 antibody (HRP) (apolipoprotein A-II) for ELISA. Anti-Apolipoprotein A2 pAb (GTX40825) is tested in Human samples. 100% Ab-Assurance.
Low-resolution epitope characterisation in a family of seed apolipoproteins using polyclonal antibodies - WestminsterResearch
Polyclonal antibodies raised against a range of seed apolipoproteins from the family Cruciferae have been used for the first time for low resolution epitope characterisation. Antibodies were raised against the major seed apolipoproteins of Brassica napus, Sinapis alba and Raphanus sativum. In each case, the antibodies recognized, in addition to the 19-20 kDa apolipoprotein to which they were raised, similar 19-20 kDa apolipoproteins from a wide range of species in the family Cruciferae, but not in other plant families. Homologous or heterologous two-sites (sandwich) assays were performed with the format [antibody A - test apolipoprotein - antibody B - 2° antibody]. The results showed a drastically reduced antibody B binding by apolipoproteins preincubated with an antibody A. This indicated the presence of a single major epitope on many of the apolipoproteins. The antigenicity of native and denatured apolipoproteins was similar, although the antigenicity of the former was much more readily ...
Apolipoproteins A Summary Report | CureHunter
Apolipoproteins A: Structural proteins of the alpha-lipoproteins (HIGH DENSITY LIPOPROTEINS), including APOLIPOPROTEIN A-I and APOLIPOPROTEIN A-II. They can modulate the activity of LECITHIN CHOLESTEROL ACYLTRANSFERASE. These apolipoproteins are low in atherosclerotic patients. They are either absent or present in extremely low plasma concentration in TANGIER DISEASE.
Apolipoprotein A-II - Apolipoprotein A2 Summary Report | CureHunter
Apolipoprotein A-II: The second most abundant protein component of HIGH DENSITY LIPOPROTEINS or HDL. It has a high lipid affinity and is known to displace APOLIPOPROTEIN A-I from HDL particles and generates a stable HDL complex. ApoA-II can modulate the activation of LECITHIN CHOLESTEROL ACYLTRANSFERASE in the presence of APOLIPOPROTEIN A-I, thus affecting HDL metabolism.
Enzyme-linked immunosorbent assay for apolipoproteins A-I and bin urine of patients with nephrotic syndrome
Abstract: Enzyme-linked immunosorbent assay (ELISA) has been used formeasuring apolipoproteins A-I and B in the urine. ApoB is absentin urine of healthy subjects, and apoA-I is determined in tracequantity. In patients with chronic glomerulonephritis quantity ofapoA-I in urine was 117 times as much as in control group. ApoBis present in urine of patients in considerable quantity(1528*315 *g/l).) The ELISA method for determining apoA-I andapoB in urine makes it possible to evaluate the gravity ofpathological process in kidney ...
Human ApoB-100 ELISA | ApoB-100 ELISA | ApoB-100 Assay
Apolipoproteins are carrier proteins that bind lipids to form water-soluble lipoprotein particles that can be carried through blood and lymph. Several different classes and subclasses of apolipoproteins are known. Apolipoprotein B (ApoB) is the primary apolipoprotein in chylomicrons (lipoprotein particles that contain triglycerides, phospholipids, cholesterol, and proteins) and low-density lipoprotein (LDL). It is also known as FLDB and LDLCQ4. High levels of ApoB can lead to plaques that cause atherosclerosis, and ApoB levels can be a better indicator of heart disease risk than total cholesterol or LDL. The APOB transcript is subject to tissue-specific RNA editing, resulting in two major isoforms, ApoB-100 and ApoB-48.. ...
Deletion of the propeptide of apolipoprotein A-I impairs exit of nascent apolipoprotein A-I from the endoplasmic reticulum |...
Human apolipoprotein (apo) A-I is secreted as a proprotein of 249 amino acids and is processed extracellularly to the mature form (243 amino acids) by removal of a six-residue propeptide segment. We have examined the role of the apoA-I propeptide in intracellular transport and secretion using transfected baby hamster kidney cells that secreted either proapoA-I (from the wild-type cDNA, A-Iwt) or mature-form apoA-I (from A-I delta pro, a cDNA in which the propeptide sequence was deleted). Deletion of the propeptide from the apoA-I sequence did not affect the rate of apoA-I synthesis, nor did it affect the fidelity of proteolytic removal of the prepeptide. However, the propeptide deletion caused mature-form apoA-I to accumulate within the cells as determined by pulse-chase experiments; the intracellular retention times for the mature-form apoA-I in which the propeptide was prematurely removed was three times longer than that of proapoA-I (t1/2 , 3 h compared with approximately 50 min). There was ...
Anti-Apolipoprotein A-II Goat pAb | 178464
Anti-Apolipoprotein A-II Goat pAb Anti-Apolipoprotein A-II, goat polyclonal, recognizes human apolipoprotein A-II. Does not cross-react with other apolipoproteins. It is validated for immunoelectrophoresis and immunoprecipitation. - Find MSDS or SDS, a COA, data sheets and more information.
No common major gene for apolipoprotein A-I and HDL3-C levels: evidence from bivariate segregation analysis. - Semantic Scholar
Apolipoprotein A-I (apo A-I) is the most abundant protein in high-density lipoprotein (HDL) particles, and it plays an important role in HDL metabolism. Both apo A-I and HDL cholesterol (HDL-C) levels are inversely associated with risk of cardiovascular disease. Segregation analyses suggest apo A-I levels are under the control of one or more major loci. Since HDL particles are heterogeneous in their composition and size, genetic influence on its subfractions (i.e., HDL2 and HDL3) could vary. A previous report showed evidence of a major locus controlling HDL3-C levels in a subset of the current study population. Because quantitative trait loci involved in complex diseases are likely to have pleiotropic effects on several related traits, it is possible to have a common major gene involved in regulating apo A-I and HDL3-C levels. We performed a bivariate segregation analysis of apo A-I and HDL3-C levels in 1,006 individuals from 137 families ascertained through probands undergoing elective, diagnostic
Recombinant Human Apolipoprotein A I (ab50239) | アブカム
Recombinant Human Apolipoprotein A I Full length protein datasheet (ab50239). Abcam offers quality products including antibodies, assays and other reagents.
... or apolipoprotein C-II is a protein that in humans is encoded by the APOC2 gene. secreted in plasma where it ... "A nonsense mutation in the apolipoprotein C-IIPadova gene in a patient with apolipoprotein C-II deficiency". J. Clin. Invest. ... Familial apolipoprotein CII deficiency associated with premature vascular disease". J. Clin. Invest. 80 (6): 1597-606. doi: ... "Structure of apolipoprotein C-IIToronto, a nonfunctional human apolipoprotein". Proc. Natl. Acad. Sci. U.S.A. 84 (1): 270-3. ...
Apolipoprotein BEdit. Apolipoprotein B, in its ApoB100 form, is the main apolipoprotein, or protein part of the lipoprotein ... Class III: LDLR does not properly bind LDL on the cell surface because of a defect in either apolipoprotein B100 (R3500Q) or in ... LDL cholesterol normally circulates in the body for 2.5 days, and subsequently the apolipoprotein B portion of LDL cholesterol ... or apolipoprotein B (ApoB), which is the part of LDL that binds with the receptor; mutations in other genes are rare. People ...
In animals, when there is an oversupply of dietary carbohydrate, the excess carbohydrate is converted to triglycerides. This involves the synthesis of fatty acids from acetyl-CoA and the esterification of fatty acids in the production of triglycerides, a process called lipogenesis. Fatty acids are made by fatty acid synthases that polymerize and then reduce acetyl-CoA units. The acyl chains in the fatty acids are extended by a cycle of reactions that add the acetyl group, reduce it to an alcohol, dehydrate it to an alkene group and then reduce it again to an alkane group. The enzymes of fatty acid biosynthesis are divided into two groups, in animals and fungi all these fatty acid synthase reactions are carried out by a single multifunctional protein, while in plant plastids and bacteria separate enzymes perform each step in the pathway. The fatty acids may be subsequently converted to triglycerides that are packaged in lipoproteins and secreted from the liver. The synthesis of ...
... apolipoprotein D; beta-lactoglobulin; complement component C8 gamma chain; crustacyanin; epididymal-retinoic acid binding ...
Apolipoprotein A-1 Milano (also ETC-216, now MDCO-216) is a naturally occurring mutated variant of the apolipoprotein A1 ... Weisgraber KH, Rall SC, Bersot TP, Mahley RW, Franceschini G, Sirtori CR (25 February 1983). "Apolipoprotein A-IMilano. ...
Apolipoprotein E-associated. Elevation of both serum cholesterol and triglycerides; accelerated atherosclerosis, coronary heart ...
Apolipoprotein A-II is a protein that in humans is encoded by the APOA2 gene. This gene encodes apolipoprotein (apo-) A-II, ... "Entrez Gene: APOA2 apolipoprotein A-II". Pussinen PJ, Jauhiainen M, Metso J, Pyle LE, Marcel YL, Fidge NH, Ehnholm C (Jan 1998 ... Brewer HB, Lux SE, Ronan R, John KM (May 1972). "Amino acid sequence of human apoLp-Gln-II (apoA-II), an apolipoprotein ... The protein is found in plasma as a monomer, homodimer, or heterodimer with apolipoprotein D. Defects in this gene may result ...
Low-density lipoprotein receptor-related protein 8
Kim DH, Iijima H, Goto K, Sakai J, Ishii H, Kim HJ, Suzuki H, Kondo H, Saeki S, Yamamoto T (Jun 1996). "Human apolipoprotein E ... Apolipoprotein E (ApoE) plays an important role in phospholipid and cholesterol homeostasis. After binding ApoER2, ApoE is ... Riddell DR, Sun XM, Stannard AK, Soutar AK, Owen JS (2001). "Localization of apolipoprotein E receptor 2 to caveolae in the ... Herz J (June 2009). "Apolipoprotein E receptors in the nervous system". Curr. Opin. Lipidol. 20 (3): 190-6. doi:10.1097/MOL. ...
Apolipoprotein M is a protein that in humans is encoded by the APOM gene. The protein encoded by this gene is an apolipoprotein ... "Entrez Gene: APOM apolipoprotein M". Albertella MR, Jones H, Thomson W, et al. (1997). "Localization of eight additional genes ... Overview of all the structural information available in the PDB for UniProt: O95445 (Human Apolipoprotein M) at the PDBe-KB. v ... 2004). "Regulation of apolipoprotein M gene expression by MODY3 gene hepatocyte nuclear factor-1alpha: haploinsufficiency is ...
"Genetic studies of human apolipoproteins. XVIII. apolipoprotein polymorphisms in Australian Aborigines", Human Biology, 63 (2 ...
Apolipoprotein L3 is a protein that in humans is encoded by the APOL3 gene. This gene is a member of the apolipoprotein L gene ... "Entrez Gene: APOL3 apolipoprotein L, 3". Human APOL3 genome location and APOL3 gene details page in the UCSC Genome Browser. ... 2001). "Apolipoprotein L gene family: tissue-specific expression, splicing, promoter regions; discovery of a new gene". J. ... Monajemi H, Fontijn RD, Pannekoek H, Horrevoets AJ (2002). "The apolipoprotein L gene cluster has emerged recently in evolution ...
Gain of toxic Apolipoprotein E4 effects in Human iPSC-Derived Neurons Is Ameliorated by a Small-Molecule Structure Corrector. ... Alzheimer's disease and apolipoprotein E (apoE). Uncovered the molecular pathways that link apoE and Alzheimer's disease, and ... In 2018 published an article in Nature Medicine about apolipoprotein E(apoE) gene expression-pluripotent stem cell cultures ...
Apolipoprotein L2 is a protein that in humans is encoded by the APOL2 gene. This gene is a member of the apolipoprotein L gene ... "Entrez Gene: APOL2 apolipoprotein L, 2". "The Human Protein atlas Gene: APOL2 apolipoprotein L, 2". Liao W, Goh FY, Betts RJ, ... "Nextprot Gene: APOL2 apolipoprotein L, 2". Human APOL2 genome location and APOL2 gene details page in the UCSC Genome Browser. ... "The Human Protein atlas Gene: APOL2 apolipoprotein L, 2". Rao SK, Pavicevic Z, Du Z, Kim JG, Fan M, Jiao Y, Rosebush M, Samant ...
Apolipoprotein L6 is a protein that in humans is encoded by the APOL6 gene. This gene is a member of the apolipoprotein L gene ... "Entrez Gene: APOL6 apolipoprotein L, 6". Human APOL6 genome location and APOL6 gene details page in the UCSC Genome Browser. ... Liu Z, Lu H, Jiang Z, Pastuszyn A, Hu CA (Jan 2005). "Apolipoprotein l6, a novel proapoptotic Bcl-2 homology 3-only protein, ... Page NM, Butlin DJ, Lomthaisong K, Lowry PJ (May 2001). "The human apolipoprotein L gene cluster: identification, ...
2003). "[Apolipoprotein E and bleomycin hydrolase. Polymorphisms: association with neurodegenerative diseases]". Ann. Biol. ...
The main apolipoprotein component is apolipoprotein B-48 (apo B-48). While circulating in blood, chylomicrons exchange ... Apolipoproteins are significant in the synthesis and metabolism of chylomicrons. The villi, lined with the microvilli of the ... The triglycerides are then combined with phospholipids, cholesteryl esters, and apolipoprotein B-48 to form a nascent ... components with high-density lipoproteins (HDL). The HDL donates apolipoprotein C-II (APOC2) and apolipoprotein E (APOE) to the ...
Its most abundant apolipoproteins are apo A-I and apo A-II. A rare genetic variant, ApoA-1 Milano, has been ... In the stress response, serum amyloid A, which is one of the acute-phase proteins and an apolipoprotein, is under the ... Sacks FM, Zheng C, Cohn JS (2011). "Complexities of plasma apolipoprotein C-III metabolism". Journal of Lipid Research. 52 (6 ... HDL lipoprotein particles that bear apolipoprotein C3 are associated with increased, rather than decreased, risk for coronary ...
Katan MB (March 1986). "Apolipoprotein E isoforms, serum cholesterol, and cancer". Lancet. 1 (8479): 507-8. doi:10.1016/s0140- ...
Hauser, Paul S.; Ryan, Robert O. (October 2013). "Impact of Apolipoprotein E on Alzheimer's Disease". Current Alzheimer ...
"Entrez Gene: apolipoprotein B mRNA editing enzyme". Marino D, Perković M, Hain A, Jaguva Vasudevan AA, Hofmann H, Hanschmann KM ... C->U-editing enzyme APOBEC-4, also known as Apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 4, is a protein ...
Hepatocyte nuclear factor 4 alpha
Zannis VI, Kan HY, Kritis A, Zanni E, Kardassis D (Mar 2001). "Transcriptional regulation of the human apolipoprotein genes". ... Ginsburg GS, Ozer J, Karathanasis SK (Jul 1995). "Intestinal apolipoprotein AI gene transcription is regulated by multiple ... "CREB-binding protein is a transcriptional coactivator for hepatocyte nuclear factor-4 and enhances apolipoprotein gene ...
Apolipoprotein L domain containing 1 is a protein in humans that is encoded by the APOLD1 gene. It is located on Chromosome 12 ... "Entrez Gene: Apolipoprotein L domain containing 1". Retrieved 2012-11-02. CS1 maint: discouraged parameter (link) APOLD1 ... apolipoprotein L domain containing 1 [ Homo sapiens (human) ] on NCBI Human APOLD1 genome location and APOLD1 gene details page ...
1999) showed that 2 cell surface receptors, very low density lipoprotein receptor (VLDLR; 192977) and apolipoprotein E receptor ... "Functional dissection of Reelin signaling by site-directed disruption of Disabled-1 adaptor binding to apolipoprotein E ...
Harold Smith (scientist)
L Chan (22 May 1994). "Apolipoprotein B Messenger RNA editing: An Update". Departments of Cell Biology and Medicine, Baylor ...
The presence of the Apolipoprotein c4 allele. ARD is treated with abstinence from further alcohol consumption. Multiple ...
The basics of MR were invented by Martijn B. Katan in 1986, when he suggested the use of apolipoprotein E alleles, that had ... Katan MB (March 1986). "Apolipoprotein E isoforms, serum cholesterol, and cancer". Lancet. 1 (8479): 507-8. doi:10.1016/s0140- ...
This inability to bind LDL is due to VLDLR's incapability to bind apolipoprotein B (apoB), which is present in LDL. Receptor- ... VLDLR binds compounds containing apolipoprotein E (apoE). These ligands attach to the cysteine binding repeats in the N- ... This receptor has an important role in cholesterol uptake, metabolism of apolipoprotein E-containing triacylglycerol-rich ... and apolipoprotein E receptor-2". Biochim. Biophys. Acta. 1529 (1-3): 287-98. doi:10.1016/S1388-1981(00)00155-4. PMID 11111096 ...
David J. Galton
Thus one extra sialyl residue on apolipoprotein C3 impairs its action on lipoprotein lipase. This can affect expression of the ... doi:10.1016/s0140-6736(79)92068-3. Galton, DJ (August 2017). "Clarifying complex inheritance: apolipoprotein C3 and ... "An abnormal triglyceride-rich lipoprotein containing excess sialylated apolipoprotein". Journal of Clinical Investigation. 69 ( ... "Hypertriglyceridaemia associated with an abnormal triglyceride-rich lipoprotein carrying excess apolipoprotein". Lancet. 2: 667 ...
"Entrez Gene: apolipoprotein B mRNA editing enzyme". OhAinle M, Kerns JA, Malik HS, Emerman M (April 2006). "Adaptive evolution ... DNA dC->dU-editing enzyme APOBEC-3H, also known as Apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 3H or APOBEC ... This gene encodes a member of the apolipoprotein B mRNA-editing enzyme catalytic polypeptide (APOBEC) family of proteins. The ...
Apolipoproteins C - MeSH - NCBI
... and ProteinsProteinsApoproteinsApolipoproteinsApolipoproteins CApolipoprotein C-IApolipoprotein C-IIApolipoprotein C-III ... and ProteinsProteinsLipoproteinsApolipoproteinsApolipoproteins CApolipoprotein C-IApolipoprotein C-IIApolipoprotein C-III ... and Drugs CategoryLipidsLipoproteinsApolipoproteinsApolipoproteins CApolipoprotein C-IApolipoprotein C-IIApolipoprotein C-III ... Apolipoproteins C. A group of apolipoproteins that can readily exchange among the various classes of lipoproteins (HDL; VLDL; ...
Apolipoprotein C4 - Wikipedia
Apolipoprotein C-IV, also known as apolipoprotein C4, is a protein that in humans is encoded by the APOC4 gene. ... Apolipoprotein (apo)C4 gene is a member of the apolipoprotein C gene family. It is expressed in the liver and has a predicted ... "Entrez Gene: apolipoprotein C-IV".. *^ Allan CM, Walker D, Segrest JP, Taylor JM (July 1995). "Identification and ... 2002). "Regulated expression of the apolipoprotein E/C-I/C-IV/C-II gene cluster in murine and human macrophages. A critical ...
Apolipoprotein C2 - Wikipedia
Apolipoprotein C2 or apolipoprotein C-II is a protein that in humans is encoded by the APOC2 gene. secreted in plasma where it ... "A nonsense mutation in the apolipoprotein C-IIPadova gene in a patient with apolipoprotein C-II deficiency". J. Clin. Invest. ... Familial apolipoprotein CII deficiency associated with premature vascular disease". J. Clin. Invest. 80 (6): 1597-606. doi: ... "Structure of apolipoprotein C-IIToronto, a nonfunctional human apolipoprotein". Proc. Natl. Acad. Sci. U.S.A. 84 (1): 270-3. ...
Apolipoprotein alzheimer's disease connection - English
Alzheimers Is Genetic Protect Your Future www.alzheimer-herbs.com/ Apolipoprotein alzhei… ... Apolipoprotein alzheimers disease connection * 1. Anti Alzheimers Herbs. Alzheimers Is Genetic Protect Your Future www. ... The fourth and perhaps the most important recently discovered gene linked to AAlzheimers disease is the Apolipoprotein E (ApoE ... alzheimer-herbs.com/ Apolipoprotein alzheimers disease connection The scientific enthusiasm about the possible role of amyloid ...
Apolipoprotein B100: MedlinePlus Medical Encyclopedia
Apolipoprotein B100 (apoB100) is a protein that plays a role in moving cholesterol around your body. It is a form of low ... Apolipoprotein B100 (apoB100) is a protein that plays a role in moving cholesterol around your body. It is a form of low ... Apolipoprotein measurements may provide more detail about your risk for heart disease, but the added value of this test beyond ... Lipids, lipoproteins, apolipoproteins, and other cardiovascular risk factors. In: Rifai N, ed. Tietz Textbook of Clinical ...
Apolipoprotein CII: MedlinePlus Medical Encyclopedia
Apolipoprotein CII (apoCII) is a protein found in large fat particles that the gastrointestinal tract absorbs. It is also found ... ApoCII; Apoprotein CII; ApoC2; Lipoprotein lipase deficiency - apolipoprotein CII; Chylomicronemia syndrome - apolipoprotein ... Apolipoprotein measurements may provide more detail about your risk for heart disease, but the added value of this test beyond ... Apolipoprotein CII (apoCII) is a protein found in large fat particles that the gastrointestinal tract absorbs. It is also found ...
Apolipoprotein - Wikipedia
... apolipoprotein D apolipoprotein E apolipoprotein F apolipoprotein H apolipoprotein L apolipoprotein M apolipoprotein(a) ... apolipoprotein A (apoA1, apoA2, apoA4, and apolipoprotein A-V (apoA5)) apolipoprotein B (apo B48 and apo B100) apolipoprotein C ... Apolipoprotein F (apoF) is one of the minor apolipoprotein in blood plasma and it is a lipid transfer inhibit protein to ... Apolipoprotein synthesis in the intestine is regulated principally by the fat content of the diet. Apolipoprotein synthesis in ...
What is apolipoprotein AI amyloidosis (apoAI)?
Apolipoprotein AI amyloidosis (apoAI) is an autosomal dominant amyloidosis caused by point mutations in the apoAI gene. Usually ... encoded search term (What is apolipoprotein AI amyloidosis (apoAI)?) and What is apolipoprotein AI amyloidosis (apoAI)? What to ... What is apolipoprotein AI amyloidosis (apoAI)?. Updated: May 09, 2019 * Author: Robert O Holmes, Jr, DO; Chief Editor: Herbert ... Apolipoprotein AI amyloidosis (apoAI) is an autosomal dominant amyloidosis caused by point mutations in the apoAI gene. Usually ...
Apo B (Apolipoprotein B)
The apolipoprotein B (Apo B) is a protein involved in the metabolism of lipids. The apo B test may be used, along with other ... Apolipoprotein B-100 (also called apolipoprotein B or apo B) is a protein that is involved in the metabolism of lipids and is ... Apolipoproteins combine with lipids to transport them throughout the bloodstream. Apolipoproteins provide structural integrity ... The apolipoprotein B (apo B) test is used, along with other lipid tests, to help determine an individuals risk of developing ...
... (apoB100) is a protein that plays a role in moving cholesterol around your body. It is a form of low ... Apolipoprotein B100 (apoB100) is a protein that plays a role in moving cholesterol around your body. It is a form of low ... Apolipoprotein measurements may provide more detail about your risk for heart disease, but the added value of this test beyond ... Regulation and clearance of apolipoprotein B-containing lipoproteins. In: Ballantyne CM, ed. Clinical Lipidology: A Companion ...
Apolipoprotein L1 - Wikipedia
Apolipoprotein L1 is a protein that in humans is encoded by the APOL1 gene. Two transcript variants encoding two different ... APOL1 is a member of a family of apolipoproteins which also includes six other proteins and it is a member of bcl2 genes which ... Apolipoprotein L1 (apoL1) is a minor apoprotein component of HDL (High-density lipoprotein) or good cholesterol which is ... particles that also contain apolipoprotein A1 (APOA1) and the hemoglobin-binding, haptoglobin-related protein (HPR). The APOL1 ...
Lipid and apolipoprotein in cord blood | SpringerLink
... a series of Sicilian neonates was studied in order to investigate about the distribution of serum lipid and apolipoprotein at ... 1990) Lipid and apolipoprotein in cord blood. In: Descovich G., Gaddi A., Magri G., Lenzi S. (eds) Atherosclerosis and ... McConathy, W.J., Lane, D.M., (1980) "Studies on the apolipoproteins and lipoproteins of cord serum", Pediatr. Res., 14, 757-61. ... In conclusion lipid and apolipoprotein distributions in Sicilian newborns are not different from that of other population and ...
Apolipoprotein A-IV (O46409) | InterPro | EMBL-EBI
InterPro provides functional analysis of proteins by classifying them into families and predicting domains and important sites. We combine protein signatures from a number of member databases into a single searchable resource, capitalising on their individual strengths to produce a powerful integrated database and diagnostic tool.
Apolipoprotein A/E (IPR000074) | InterPro | EMBL-EBI
Exchangeable apolipoproteins (apoA, apoC and apoE) have the same genomic structure and are members of a multi-gene family that ... ApoA1, ApoA4 and Apo5 are part of the APOA1/C3/A4/A5 gene cluster on chromosome 11 [PMID: 15108119]. Apolipoproteins function ... Three-dimensional structure of the LDL receptor-binding domain of human apolipoprotein E.. Science 252 1817-22 1991 ... Contributions of domain structure and lipid interaction to the functionality of exchangeable human apolipoproteins.. Prog. ...
Apolipoprotein E controls cerebrovascular integrity via cyclophilin A | Nature
Human apolipoprotein E has three isoforms: APOE2, APOE3 and APOE41. APOE4 is a major genetic risk factor for Alzheimers ... Human apolipoprotein E has three isoforms: APOE2, APOE3 and APOE41. APOE4 is a major genetic risk factor for Alzheimers ... Apolipoprotein E controls cerebrovascular integrity via cyclophilin A. *Robert D. Bell1,2. , ... Bell, R., Winkler, E., Singh, I. et al. Apolipoprotein E controls cerebrovascular integrity via cyclophilin A. Nature 485, 512- ...
APOA1 apolipoprotein A1 [Homo sapiens (human)] - Gene - NCBI
APOA1 apolipoprotein A1 [Homo sapiens] APOA1 apolipoprotein A1 [Homo sapiens]. Gene ID:335 ... Title: Apolipoprotein B/apolipoprotein A1 ratio and mortality among incident peritoneal dialysis patients. ... apolipoprotein A1provided by HGNC. Primary source. HGNC:HGNC:600 See related. Ensembl:ENSG00000118137 MIM:107680; Vega: ... Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins. Pourmousa M, et al. Proc Natl Acad Sci U S A, ...
RCSB PDB - 1NFN: APOLIPOPROTEIN E3 (APOE3)
APOLIPOPROTEIN E3. A. 191. Homo sapiens. Mutation(s): 0 Gene Names: E2, APOE. ... Novel mechanism for defective receptor binding of apolipoprotein E2 in type III hyperlipoproteinemia.. Dong, L.M., Parkin, S., ... The defective binding of apolipoprotein (apo) E2 to lipoprotein receptors, an underlying cause of type III hyperlipoproteinemia ... The defective binding of apolipoprotein (apo) E2 to lipoprotein receptors, an underlying cause of type III hyperlipoproteinemia ...
RCSB PDB - 1GS9: Apolipoprotein E4, 22k domain
Pharmacology of apolipoprotein A-I
The role of HDL and its main protein component the apolipoprotein A-I as being antiatherogenic is well established. ... Pharmacology of apolipoprotein A-I Curr Opin Lipidol. 1997 Aug;8(4):225-8. doi: 10.1097/00041433-199708000-00006. ... The role of HDL and its main protein component the apolipoprotein A-I as being antiatherogenic is well established. ... Knowledge of pharmacology of apolipoprotein A-I has strongly increased during past years and clinical studies have started with ...
Absolute Quantification of Plasma Apolipoproteins for Cardiovascular Disease Risk Prediction | SpringerLink
Apolipoproteins regulate lipid metabolism, adipose tissue, and energy production and serve major... ... Apolipoproteins have important structural and functional roles in several lipoprotein particles. ... Horejsi B, Ceska R (2000) Apolipoproteins and atherosclerosis. Apolipoprotein E and apolipoprotein(a) as candidate genes of ... Apolipoproteins have important structural and functional roles in several lipoprotein particles. Apolipoproteins regulate lipid ...
NHANES 2011-2012: Apolipoprotein B Data Documentation, Codebook, and Frequencies
LBXAPB - Apolipoprotein (B) (mg/dL). Variable Name: LBXAPB. SAS Label: Apolipoprotein (B) (mg/dL). English Text: Apolipoprotein ... LBDAPBSI - Apolipoprotein (B) (g/L). Variable Name: LBDAPBSI. SAS Label: Apolipoprotein (B) (g/L). English Text: Apolipoprotein ... Apolipoprotein B (ApoB_G) Data File: ApoB_G.xpt First Published: January 2014. Last Revised: NA ... Apolipoprotein B is the main protein component of LDL and accounts for approximately 95% of the total protein content of LDL. ...
NHANES 2007-2008: Apolipoprotein B Data Documentation, Codebook, and Frequencies
LBXAPB - Apolipoprotein (B) (mg/dL). Variable Name: LBXAPB. SAS Label: Apolipoprotein (B) (mg/dL). English Text: Apolipoprotein ... LBDAPBSI - Apolipoprotein (B) (g/L). Variable Name: LBDAPBSI. SAS Label: Apolipoprotein (B) (g/L). English Text: Apolipoprotein ... A crossover study was performed to compare the 2007-2008 Apolipoprotein B data to the 2005-2006 Apolipoprotein B data. The Dade ... Apolipoprotein B (ApoB_E) Data File: ApoB_E.xpt First Published: July 2010. Last Revised: NA Note: See Analytic Note on ...
Conversion of apolipoprotein-spec... preview & related info | Mendeley
HDL3species containing both apolipoprotein A-I and apolipoprotein A-II, and HDL3(AI w/o AII), HDL3species containing ... initially with three apolipoprotein A-I, to larger particles with four apolipoprotein A-I per particle. © 1989. ... Conversion of apolipoprotein-specific high-density lipoprotein populations during incubation of human plasma. *Nichols A ... Nichols, A. V., Blanche, P. J., Shore, V. G., & Gong, E. L. (1989). Conversion of apolipoprotein-specific high-density ...
Apolipoprotein E and atherosclerosis
First, plasma apolipoprotein E maintains overall plasma cholesterol homeostasis by facilitating efficient hepatic uptake of ... Apolipoprotein E plays a key protective role in atherosclerosis. Its capacity to safeguard against this disease can be ... Second, lesion apolipoprotein E in concert with apolipoprotein A-I facilitates cellular cholesterol efflux from macrophage foam ... Apolipoprotein E and atherosclerosis Curr Opin Lipidol. 2000 Jun;11(3):243-51. doi: 10.1097/00041433-200006000-00004. ...
Apolipoproteins | ProSpec
Apolipoprotein-D Human Recombinant, Human Apolipoprotein-J, Apolipoprotein-J Canine Recombinant ... ProSpecs Apolipoproteins include: Clusterin Human Recombinant, Clusterin Rat Recombinant, ... About Apolipoprotein:. The binding of lipids (soluble oil molecules) and cholesterol to Apoliproteins result in the formation ... 6 main classes of apolipoproteins are APOA, APOB, APOC, APOD, APOE and APOH. APOA1 takes an important role in the return of ...
Apolipoprotein E Genotypes in Mexican Patients with Parkinson's Disease
i,Background,/i,: The association of the apolipoprotein (Apo E) -epsilon4 allele to neurodegenerative diseases such as ... Apolipoprotein E Genotypes in Mexican Patients with Parkinsons Disease. M.P. Gallegos-Arreola,1 L.E. Figuera. ,2 G.G. Ortiz. , ... Apolipoprotein E Genotypes in Mexican Patients with Parkinsons Disease,. Disease Markers,. vol. 27. ,. Article ID 617863. ,. ... Background: The association of the apolipoprotein (Apo E) -epsilon4 allele to neurodegenerative diseases such as Parkinsons ...
Apolipoprotein E: Possible Therapeutic Target for Atherosclerosis: Ingenta Connect
Structural changes induced by acidic pH in human apolipoprotein B-100 | Scientific Reports
Structural changes induced by acidic pH in human apolipoprotein B-100. *José A. Fernández-Higuero1,2. na1, ... Structural changes induced by acidic pH in human Apolipoprotein B-100. Sci. Rep. 6, 36324; doi: 10.1038/srep36324 (2016). ... Law, A. & Scott, J. A cross-species comparison of the apolipoprotein B domain that binds to the LDL receptor. Journal of lipid ... Segrest, J. P., Jones, M. K., De Loof, H. & Dashti, N. Structure of apolipoprotein B-100 in low density lipoproteins. Journal ...
SpectraCell Laboratories Offers Apolipoprotein E Genetic Testing
Effective immediately, SpectraCell Laboratories now offers apolipoprotein E genotyping. This test determines a persons genetic ... SpectraCell Laboratories Offers Apolipoprotein E Genetic Testing. Thursday, April 22, 2010 General News ... HOUSTON, April 21 /PRNewswire/ -- Effective immediately, SpectraCell Laboratories now offers apolipoprotein E genotyping. ...
Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins | PNAS
Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins. Mohsen Pourmousa, Hyun D. Song, Yi He, Jay W. ... Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins. Mohsen Pourmousa, Hyun D. Song, Yi He, Jay W. ... Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins. Mohsen Pourmousa, Hyun D. Song, Yi He, Jay W. ... Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins Message Subject (Your Name) has sent you a ...
LipoproteinsApoEProteinsGeneLipids and apolipoproteinsLecithin-cholesterol acyApoA1Alzheimer'sMetabolismCholesterolAtherosclerosisApoBHigh-density lipApoDAlleleParticlesB100CIIIPolymorphismTriglyceridesModulateGenesLipid and apolipoproteinLevels of apolipoproteinsGeneticSpeciesDeficiencySerum apolipoproteinHuman apolipoproteinsPlasma apolipoproteinSpecific apolipoproteinsRenalSecretionAmyloidAmphipathicProtein componentPathwaysAPOL1LipocalinSearchCardiovascular eventsMRNAVLDLPrecursorAntibodiesLipoprotein receptorsChylomicronHypercholesterolemia
- Regulation and clearance of apolipoprotein B-containing lipoproteins. (medlineplus.gov)
- Apolipoproteins provide structural integrity to lipoproteins and shield the water-repellent (hydrophobic) lipids at their center. (labtestsonline.org)
- Apolipoproteins are proteins that bind lipids (oil-soluble substances such as fat and cholesterol) to form lipoproteins. (wikipedia.org)
- Different lipoproteins contain different classes of apolipoproteins, which influence their function. (wikipedia.org)
- Apolipoprotein A-I (apoA1) is the major structural protein component of high-density lipoproteins (HDL), although it is present in other lipoproteins in smaller amounts. (wikipedia.org)
- Apolipoprotein A-IV (apoA4) is present in chylomicrons, very-low-density lipoproteins (VLDL), and HDL. (wikipedia.org)
- Apolipoprotein B plays a particularly important role in lipoprotein transport being the primary organizing protein of many lipoproteins. (wikipedia.org)
- Apolipoprotein C-III (apoC3) plays an important role in lipid metabolism specific in regulating the metabolism of triglyceride-rich lipoproteins (TRLs). (wikipedia.org)
- Tertiary structure of apolipoprotein A-I in nascent high-density lipoproteins. (nih.gov)
- McQueen MJ, Hawken S, Wang X, Ounpuu S, Sniderman A, Probstfield J et al (2008) Lipids, lipoproteins, and apolipoproteins as risk markers of myocardial infarction in 52 countries (the INTERHEART study): a case-control study. (springer.com)
- Apolipoproteins are composed from various lipoproteins such as exchangeable Apolipoprtoeins and non-exchangeable. (prospecbio.com)
- Apolipoprotein C-II (apoCII) is in found in chylomicrons (large lipoprotein particles absorbed from the gastrointestinal tract) and VLDL (large lipoproteins that are broken down to eventually form LDL). (abcam.com)
- Cinnamon extract inhibits the postprandial overproduction of apolipoprotein B48-containing lipoproteins in fructose-fed animals. (greenmedinfo.com)
- While LDL, HDL, and (sometimes) VLDL (very low-density lipoprotein) are the only classes mentioned in regards to diagnostic tests, there are four other classes of lipoproteins that differ in size, lipid composition, and apolipoproteins. (taconic.com)
- The Apolipoproteins are the main form of protein found in High Density Lipoproteins (HDL). (randox.com)
- Apolipoprotein E (apoE), a component of plasma lipoproteins, has been suggested to bind and traffic Ags for NKT cell activation. (jimmunol.org)
- Apolipoprotein E (apoE) 3 is a multifunctional component of plasma lipoproteins that is found on very low density lipoprotein, low density lipoprotein (LDL), high density lipoprotein, and chylomicron remnant lipoprotein complexes. (jimmunol.org)
- Apolipoprotein B100 (apoB) is the structural protein of the atherogenic lipoproteins. (thefreedictionary.com)
- In particular, increased apolipoprotein B levels, both in whole plasma and in specific lipoprotein fractions, e.g. low density lipoproteins (LDL) , seem to be associated to a raised risk, the opposite being the case for apo AI . (springer.com)
- Swaney JB, Braithwaite F, Eder HA (1977) Characterization of the apolipoproteins of rat plasma lipoproteins. (springer.com)
- Brewer HB, Fairwell T, La Rue A, Rorian R, Hauser A, Bronzert TJ (1978) The amino acid sequence of human apo AI, an apolipoprotein isolated from high density lipoproteins. (springer.com)
- Apolipoprotein (Apo) C-III (ApoCIII) resides on the surface of plasma chylomicron (CM), very low density lipoprotein (VLDL) and high density lipoproteins (HDL). (jove.com)
- The fourth and perhaps the most important recently discovered gene linked to AAlzheimers disease is the Apolipoprotein E (ApoE) gene on chromosome 19, which has been associated with many lateonset familial cases of Alzheimers disease as well as sporadic cases in the over-60 age group. (slideshare.net)
- Exchangeable apolipoproteins (apoA, apoC and apoE) have the same genomic structure and are members of a multi-gene family that probably evolved from a common ancestral gene. (ebi.ac.uk)
- Recent findings with apoA1 and apoE suggest that the tertiary structures of these two members of the human exchangeable apolipoprotein gene family are related [ PMID: 15234552 ]. (ebi.ac.uk)
- Apolipoprotein E (apoE) plays an important role in the transport and uptake of cholesterol by way of its high affinity interaction with lipoprotein receptors, including the low-density lipoprotein (LDL) receptor. (wikipedia.org)
- APOE is primarily located in HDL and VLDL Apolipoproteins act as lipid transfer carrier enzymes, cofactors and receptor ligands which control lipoprotein metabolism. (prospecbio.com)
- Human apolipoprotein E (apoE) consists of a single polypeptide chain with 299 amino acids and is best known for its role in the transport of cholesterol and other lipids between peripheral tissues and the liver. (ingentaconnect.com)
- Apolipoprotein E (ApoE) is a protein associated with cardiovascular disease (CVD) and Alzheimer's disease. (genomebc.ca)
- Apolipoprotein E ( ApoE ) is a class of proteins involved in the metabolism of fats in the body. (wikidoc.org)
- The gene, APOE , is mapped to chromosome 19 in a cluster with apolipoprotein C1 (APOC-I) and the apolipoprotein C2 . (wikidoc.org)
- The lipid transport protein, apolipoprotein E (apoE), is expressed in many peripheral tissues in vivo including the adrenal gland and testes. (pnas.org)
- Several studies in mice indicate a role for apolipoprotein E (APOE) in lipid accumulation and adipogenic differentiation in adipose tissue. (osti.gov)
- They examined the correlation of high-density lipoprotein cholesterol (HDL-C), apoA1, apoCIII, apoD, and apoE and the ratios of apolipoproteins with apoA1 with T2D risk. (medicalxpress.com)
- The apolipoprotein (APOE) epsilon4 allele is a genetic risk factor for the development of Alzheimer's disease (AD). (unboundmedicine.com)
- VL - 483 IS - 1 N2 - The apolipoprotein (APOE) epsilon4 allele is a genetic risk factor for the development of Alzheimer's disease (AD). (unboundmedicine.com)
- Objectives: To evaluate the frequency of apolipoprotein (APOE) alleles and determine whether APOE type 4 allele (e4) was associated with edentulousness even when certain factors were controlled.Background: The APOE are important in lipid homeostasis, and APOE e4 has been found in many diseases and to have a negative impact on longevity. (diva-portal.org)
- METHODS AND RESULTS: Apolipoprotein E (Apoe) null mice that had knockout of a single allele of the insulin receptor (Insr) gene were compared with littermate Apoe null mice with intact insulin receptors. (biomedsearch.com)
- In addition to stabilizing lipoprotein structure and solubilizing the lipid component, apolipoproteins interact with lipoprotein receptors and lipid transport proteins, thereby participating in lipoprotein uptake and clearance. (wikipedia.org)
- In lipid transport, apolipoproteins function as structural components of lipoprotein particles, ligands for cell-surface receptors and lipid transport proteins, and cofactors for enzymes (e.g. apolipoprotein C-II for lipoprotein lipase and apolipoprotein A-I (apoA1) for lecithin-cholesterol acyltransferase). (wikipedia.org)
- APOL1 is a member of a family of apolipoproteins which also includes six other proteins and it is a member of bcl2 genes which are involved in autophagic cell death. (wikipedia.org)
- Using the models of two long anti-atherogenic and anti-inflammatory proteins (apolipoprotein A-I and apolipoprotein E with 243 and 299 amino acids, respectively) short mimetic peptides of 18 to 28 amino acid residues in length, which can be produced either synthetically or genetically in edible fruits and vegetables, have been shown to exert profound biological effects in a large number of animal models of diseases. (springer.com)
- 1995). "Site-specific detection and structural characterization of the glycosylation of human plasma proteins lecithin:cholesterol acyltransferase and apolipoprotein D using HPLC/electrospray mass spectrometry and sequential glycosidase digestion" . (wikidoc.org)
- Additionally we are shipping Apolipoprotein D Kits (32) and Apolipoprotein D Proteins (24) and many more products for this protein. (antibodies-online.com)
- Apolipoprotein J Antibody functions as a secreted chaperone that prevents aggregation of nonnative proteins. (rockland-inc.com)
- Apolipoprotein J does not require ATP or refold proteins by itself. (rockland-inc.com)
- This product has been prepared by immunoaffinity chromatography using immobilized antigens followed by extensive cross-adsorption against other apoLipoproteins and human serum proteins to remove any unwanted specificities. (rockland-inc.com)
- Non-specific cross reaction of anti-apoLipoprotein antibodies with other human serum proteins is negligible. (rockland-inc.com)
- These proteins, known as apolipoproteins, are the major identifying characteristics of a lipoprotein. (labce.com)
- One role is to increase the overall solubility of the lipid particle, helping it to dissolve in the aqueous environment of the blood (apolipoproteins are amphipathic, or detergent-like proteins). (labce.com)
- Apolipoprotein C-IV , also known as apolipoprotein C4 , is a protein that in humans is encoded by the APOC4 gene . (wikipedia.org)
- Apolipoprotein (apo)C4 gene is a member of the apolipoprotein C gene family. (wikipedia.org)
- 2002). "Regulated expression of the apolipoprotein E/C-I/C-IV/C-II gene cluster in murine and human macrophages. (wikipedia.org)
- 2009). "Gene-centric association signals for lipids and apolipoproteins identified via the HumanCVD BeadChip" . (wikipedia.org)
- Apolipoprotein C2 or apolipoprotein C-II is a protein that in humans is encoded by the APOC2 gene . (wikipedia.org)
- 1986). "The structure of the human apolipoprotein C-II gene. (wikipedia.org)
- 1989). "A nonsense mutation in the apolipoprotein C-IIPadova gene in a patient with apolipoprotein C-II deficiency" . (wikipedia.org)
- 1988). "Donor splice site mutation in the apolipoprotein (Apo) C-II gene (Apo C-IIHamburg) of a patient with Apo C-II deficiency" . (wikipedia.org)
- Apolipoprotein AI amyloidosis (apoAI) is an autosomal dominant amyloidosis caused by point mutations in the apoAI gene. (medscape.com)
- This gene encodes apolipoprotein A-I, which is the major protein component of high density lipoprotein (HDL) in plasma. (nih.gov)
- This gene is closely linked with two other apolipoprotein genes on chromosome 11. (nih.gov)
- Two novel APOA1 gene mutations in a Japanese renal transplant recipient with recurrent apolipoprotein A-I related amyloidosis. (nih.gov)
- The objective of this study was to evaluate whether apolipoprotein gene polymorphisms confer susceptibility to osteonecrosis of the femoral head. (nih.gov)
- Apolipoprotein L1 is a protein that in humans is encoded by the APOL1 gene. (wikipedia.org)
- We have generated transgenic mice over-expressing human apolipoprotein CI (apo CI) using the native gene joined to the downstream 154-bp liver-specific enhancer that we defined for apo E. Human apo CI (HuCI)-transgenic mice showed elevation of plasma triglycerides (mg/dl) compared to controls in both the fasted (211 +/- 81 vs 123 +/- 52, P = 0.0001) and fed (265 +/- 105 vs 146 +/- 68, P (jci.org)
- Apolipoprotein E genotype and the association between C-reactive protein and postoperative delirium: Importance of gene-protein interactions. (harvard.edu)
- There are two forms, apolipoprotein B-100 and apolipoprotein B-48, both derived from a single gene. (harvard.edu)
- Apolipoprotein All (ApoAII) amyloidosis, first reported in 2001 in a family with renal amyloidosis, is associated with mutations in the stop codon of the apolipoprotein AII gene resulting in a carboxyl terminal peptide extension of 21 amino acid residues in the protein. (highbeam.com)
- Apolipoprotein D is a protein that in humans is encoded by the APOD gene . (wikidoc.org)
- Expression of the human apolipoprotein E gene suppresses steroidogenesis in mouse Y1 adrenal cells. (pnas.org)
- The data show that a single dose of the gene therapy carrying a short hairpin RNA to silence Apolipoprotein B100 (ApoB100) resulted in a reduction of serum cholesterol of approximately 80% without any signs of toxicity. (thefreedictionary.com)
- Mammalian apolipoprotein B (apo B) exists in two forms, each the product of a single gene. (sciencemag.org)
- The apolipoprotein E gene ε4 all. (bio-medicine.org)
- The apolipoprotein E gene ε4 allele is considered a negative fact. (bio-medicine.org)
- The apolipoprotein E gene ε4 allele is considered a negative factor for neural regeneration in late-onset Alzheimer's disease cases. (bio-medicine.org)
- A research team from Department of Neurology, Peking University Shenzhen Hospital in China pointed out a non-invasive and fast method to genotype large samples to help to elucidate the role of apolipoprotein E gene ε4 allele in neural regeneration in the cases with late-onset Alzheimer's disease. (bio-medicine.org)
Lipids and apolipoproteins4
- Noma A Yokosuka T, Kitamura K (1983) Plasma lipids and apolipoproteins as discriminators for presence and severity of angiographically defined coronary artery disease. (springer.com)
- Associations of major lipids and apolipoproteins with the risk of vascular disease have not been reliably quantified. (pubmedcentralcanada.ca)
- To assess major lipids and apolipoproteins in vascular risk. (pubmedcentralcanada.ca)
- Reliable assessment of the separate and joint associations of major blood lipids and apolipoproteins with the risk of vascular disease is important for the development of screening and therapeutic strategies. (pubmedcentralcanada.ca)
- Chen CH, Albers JJ (1985) Activation of lecithin:cholesterol acyltransferase by apolipoproteins E-2, E-3, and AIV isolated from human plasma. (springer.com)
- LDL-cholesterol (LDL- C), apolipoproteins (apo) B, CIII, and E, and by decreased levels of HDL-cholesterol (HDL-C), apoA-I, and lecithin:cholesterol acyltransferase (LCAT) activity. (tudelft.nl)
- Case Report: recurrence of non-familial hereditary apolipoprotein A-I amyloidosis in Japanese transplant recipient with two novel APOA1 mutations. (nih.gov)
- It forms a complex, known as a trypanosome lytic factor (TLF), with high-density lipoprotein 3 (HDL3) particles that also contain apolipoprotein A1 (APOA1) and the hemoglobin-binding, haptoglobin-related protein (HPR). (wikipedia.org)
- An example of non-exchangeable apolipoprotein is APOAB which is attached to the lipoprotein particle while examples of Lipoprotein exchangeable are APOM, APOD, APOJ, APOH and APOA1 which are transported between different lipoprotein molecules. (prospecbio.com)
- HDL begins to develop when two copies of the protein apolipoprotein A-I (APOA1) mediate the removal of excess lipids from peripheral cells and form a nanodisc. (pnas.org)
- Understanding the function of high-density lipoprotein (HDL) requires detailed knowledge of the structure of its primary protein, apolipoprotein A-I (APOA1). (pnas.org)
- HealthDay)-Apolipoprotein (apo) CIII and apoCIII-to-apoA1 ratio are correlated with incident type 2 diabetes (T2D), according to a study published online Dec. 28 in Diabetes Care . (medicalxpress.com)
- Apolipoprotein A I (APOA1) - Pipeline Review, H2 2016', provides in depth analysis on Apolipoprotein A I (APOA1) targeted pipeline therapeutics. (researchandmarkets.com)
- The report provides comprehensive information on the Apolipoprotein A I (APOA1) , targeted therapeutics, complete with analysis by indications, stage of development, mechanism of action (MoA), route of administration (RoA) and molecule type. (researchandmarkets.com)
- Additionally, the report provides an overview of key players involved in Apolipoprotein A I (APOA1) targeted therapeutics development and features dormant and discontinued projects. (researchandmarkets.com)
- Apolipoprotein A-I/ApoA1 Polyclonal antibody specifically detects Apolipoprotein A-I/ApoA1 in Human, Mouse samples. (fishersci.com)
- Verghese, P. B., Castellano, J. M. & Holtzman, D. M. Apolipoprotein E in Alzheimer's disease and other neurological disorders. (nature.com)
- Elevated IgM against Nε-(Carboxyethyl)lysine-modified Apolipoprotein A1 peptide 141-147 in Taiwanese with Alzheimer's disease. (nih.gov)
- To determine the association between the e4 allele of apolipoprotein E and Alzheimer's disease in a randomly selected population sample. (bmj.com)
- The prevalence of Alzheimer's disease was 2.9% in subjects with no e4 alleles, 7.6% in subjects with one e4 allele, and 21.4% in subjects with two e4 alleles of apolipoprotein E. (bmj.com)
- Allele e4 of apolipoprotein is associated with Alzheimer's disease in a dose-response fashion in a randomly selected elderly population. (bmj.com)
- RF 1-2* Evidence is accumulating that apolipoprotein E is important in late onset Alzheimer's disease. (bmj.com)
- The first evidence that e4 allele of apolipoprotein E could be associated with Alzheimer's disease was published by Pericak-Vance et al. (bmj.com)
- All the studies that have investigated the relation between apolipoprotein E polymorphism and Alzheimer's disease have included highly selected patients and corresponding controls. (bmj.com)
- Several recently published studies showed the existence of an association between the allele ε4 of the apolipoprotein E and Alzheimer's disease (AD) in developed countries. (scielo.br)
- TY - JOUR T1 - Apolipoprotein epsilon4 and neuropsychological performance in Alzheimer's disease and vascular dementia. (unboundmedicine.com)
- The method developed for apolipoprotein E genotyping is accurate and reliable, and also suitable for genotyping large samples, which may help determine the role of the apolipoprotein E ε4 allele in neural regeneration in late-onset Alzheimer's disease cases. (bio-medicine.org)
- Apolipoprotein M (apoM) participates in the lipid metabolism and exhibit anti‑atherosclerotic functions and it is presented in high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL). (wikipedia.org)
- Apolipoproteins regulate lipid metabolism, adipose tissue, and energy production and serve major regulatory roles in both pre- and pro-atherosclerotic mechanisms. (springer.com)
- Lipoprotein (a) and Low-density lipoprotein apolipoprotein B metabolism following apheresis in patients with elevated lipoprotein(a) and coronary artery disease. (harvard.edu)
- Kei AA, Filippatos TD, Tsimihodimos V, Elisaf MS. A review of the role of apolipoprotein C-II in lipoprotein metabolism and cardiovascular disease. (randox.com)
- Apolipoprotein B100 metabolism in autosomal-dominant hypercholesterolemia related to mutations in PCSK9. (thefreedictionary.com)
- Fidge NH (1980) The redistribution and metabolism of iodinated apolipoprotein AIV in rats. (springer.com)
- The apolipoproteins dictate where the particles will dock and where they can bind, and in so doing the apolipoproteins regulate lipid metabolism in the body. (labce.com)
- Apolipoprotein B100 (apoB100) is a protein that plays a role in moving cholesterol around your body. (medlineplus.gov)
- Apolipoprotein L1 (apoL1) is a minor apoprotein component of HDL (High-density lipoprotein) or 'good cholesterol' which is synthesized in the liver and also in many other tissues, including pancreas, kidney, and brain. (wikipedia.org)
- First, plasma apolipoprotein E maintains overall plasma cholesterol homeostasis by facilitating efficient hepatic uptake of lipoprotein remnants. (nih.gov)
- Second, lesion apolipoprotein E in concert with apolipoprotein A-I facilitates cellular cholesterol efflux from macrophage foam cells within the intima of the lesion. (nih.gov)
- Apolipoprotein levels and ratios are more significant than LDL cholesterol levels in the prediction of fatal myocardial infarction. (greenmedinfo.com)
- The Ratio of High-Density Lipoprotein Cholesterol to Apolipoprotein A-I Predicts Myocardial Injury Following Elective Percutaneous Coronary Intervention. (medscape.com)
- The proband, a 65-year-old woman, had greatly diminished concentrations of serum HDL cholesterol (0.19 mmol/L) and apolipoprotein (apo) A-I (21.9 mg/dL). (ahajournals.org)
- Plasma apolipoprotein E phenotypes modulate lipoprotein concentrations, particularly that of low density lipoprotein cholesterol. (bmj.com)
- These complex molecules have a "shell" composed of cholesterol, phospholipids, and apolipoproteins, and a core with the transport material: cholesterol esters and triglycerides (see Figure 1). (taconic.com)
- Apolipoproteins are protein-lipid complexes that bind oil-soluble substances such as fat and cholesterol. (taconic.com)
- Apolipoprotein A is a protein carried in HDL ("good") cholesterol. (ahealthyme.com)
- Although apolipoprotein A levels can be measured, it's more common to measure the HDL and LDL ("bad") cholesterol when looking at cardiovascular risk. (ahealthyme.com)
- At the end of 12 weeks, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), very-low-density lipoprotein cholesterol (VLDL-C), and apolipoprotein B100 (Apo B100) were significantly lower in the soy nut group compared with the control group. (thefreedictionary.com)
- Association of high-density lipoprotein cholesterol with incident cardiovascular events in women, by low-density lipoprotein cholesterol and apolipoprotein B100 Levels: a cohort study. (thefreedictionary.com)
- Birmingham, AL), developer of the VAP Cholesterol Test, announced it has received a patent on its method to derive and report apolipoprotein B100 (apoB) using the Vertical Auto Profile (VAP) technology. (thefreedictionary.com)
- Recently, we have reported that serum apolipoprotein (apo)AI and apoB levels were strongly associated with the presence and severity of diabetic retinopathy ( 1 ), and these associations were more prominent than those of traditional lipids (e.g., total cholesterol). (diabetesjournals.org)
- Cholesterol-loaded macrophages secrete cholesterol and apolipoprotein E. The current studies show that this secretion occurs by two independent pathways. (sciencemag.org)
- In the absence of serum, the cells secrete apolipoprotein E, but not cholesterol. (sciencemag.org)
- In the presence of monensin (an inhibitor of protein secretion), the cells secrete cholesterol, but little apolipoprotein E. After secretion, apolipoprotein E and cholesterol associate with high-density lipoprotein to form a particle that can deliver cholesterol to the liver by receptor-mediated endocytosis. (sciencemag.org)
- We conclude that apolipoprotein E does not function to remove cholesterol from macrophages but rather to participate in "reverse cholesterol transport. (sciencemag.org)
- Hazard ratios (HRs), adjusted for several conventional factors, were calculated for 1-SD higher values: 0.52 loge triglyceride, 15 mg/dL high-density lipoprotein cholesterol (HDL-C), 43 mg/dL non-HDL-C, 29 mg/dL apolipoprotein AI, 29 mg/dL apolipoprotein B, and 33 mg/dL directly measured low-density lipoprotein cholesterol (LDL-C). Within-study regression analyses were adjusted for within-person variation and combined using meta-analysis. (pubmedcentralcanada.ca)
- Lipid assessment in vascular disease can be simplified by measurement of either total and HDL cholesterol levels or apolipoproteins without the need to fast and without regard to triglyceride. (pubmedcentralcanada.ca)
- 1 , 2 Expert opinion is divided about whether assessment of apolipoprotein AI (apo AI) and apolipoprotein B (apo B) should replace assessment of high-density lipoprotein cholesterol (HDL-C) and total cholesterol levels in assessment of vascular risk. (pubmedcentralcanada.ca)
- Xu, Nilsson-Ehle, Ahrén: Correlation of apolipoprotein M with leptin and cholesterol in normal and obese subjects. (antikoerper-online.de)
- Despite the hyperinsulinemia, atherosclerotic lesion size was not different between the 2 groups at time points up to 52 weeks of age when measured as en face lesion area in the aorta, cross-sectional plaque area in the aortic sinus, and cholesterol abundance in the brachiocephalic artery. (biomedsearch.com)
- Ajeganova S, Ehrnfelt C, Alizadeh R, Rohani M, Jogestrand T, Hafström I et al (2011) Longitudinal levels of apolipoproteins and antibodies against phosphorylcholine are independently associated with carotid artery atherosclerosis 5 years after rheumatoid arthritis onset-a prospective cohort study. (springer.com)
- Eo HS, Lee KB, Kim AK, Kim MH, Kim DH, Kim DI (2011) Association with inflammatory cells and apolipoproteins to the progression of atherosclerosis. (springer.com)
- Garber DW, Handattu SP, Datta G, Mishra VK, Gupta H, White CR et al (2006) Atherosclerosis and vascular disease: effects of peptide mimetics of apolipoproteins. (springer.com)
- Horejsi B, Ceska R (2000) Apolipoproteins and atherosclerosis. (springer.com)
- Apolipoprotein E and apolipoprotein(a) as candidate genes of premature development of atherosclerosis. (springer.com)
- Seishima M (2016) Physiological function of apolipoproteins and atherosclerosis. (springer.com)
- Zivanovic Z, Divjak I, Jovicevic M, Rabi-Zikic T, Radovanovic B, Ruzicka-Kaloci S et al (2018) Association between apolipoproteins AI and B and ultrasound indicators of carotid atherosclerosis. (springer.com)
- Apolipoprotein E plays a key protective role in atherosclerosis. (nih.gov)
- Avogaro P, Bittolo-Bon G, Cazzolato G, Quinci GB (1979) Are apolipoproteins better discriminators than lipids for atherosclerosis? (springer.com)
- Human apolipoprotein A-I-derived amyloid: its association with atherosclerosis. (sigmaaldrich.com)
- Hyperinsulinemia does not change atherosclerosis development in apolipoprotein E null mice. (biomedsearch.com)
- The analyst should use the special sampling weights in this file to analyze Apolipoprotein B (ApoB). (cdc.gov)
- Here we show that increased hepatic sortilin not only reduced hepatic apolipoprotein B (APOB) secretion, but also increased LDL catabolism, and that both effects were dependent on intact lysosomal targeting. (jci.org)
- However, Cox proportional hazards models with quartiles of each variable adjusted for confounders and hs-CRP or IL-6 identified apolipoprotein (apo)B-to-apoA-I ratio (apoB/apoA-I) and oxidized HDL, but not apoA-I or apoA-II, as independent risk factors for composite CVD events. (unboundmedicine.com)
- Aldehyde-modified peptide sequences in apolipoprotein B-100 (apoB-100) are major targets for these immune responses. (ahajournals.org)
- 2,3 The LDL protein apolipoprotein B-100 (apoB-100) is degraded, and aldehydes bind to free amino groups on the peptide fragments. (ahajournals.org)
- Apolipoprotein D (Apo-D) is a component of high-density lipoprotein that has no marked similarity to other apolipoprotein sequences. (wikidoc.org)
- Apolipoproteins are associated with survival among patients on hemodialysis (HD), but these associations might be influenced by dysfunctional (oxidized) high-density lipoprotein (HDL). (unboundmedicine.com)
- Apolipoprotein D (apoD) is a soluble carrier protein of lipophilic molecules in neurons and glial cells within the central and peripheral nervous system and apoD can also modulate the stability and oxidation status of these molecules. (wikipedia.org)
- On www.antibodies-online.com are 116 Apolipoprotein D (APOD) Antibodies from 22 different suppliers available. (antibodies-online.com)
- The association of the apolipoprotein (Apo E) -epsilon4 allele to neurodegenerative diseases such as Parkinson's disease (PD) has been analyzed in several studies. (hindawi.com)
- Apolipoprotein CII (apoCII) is a protein found in large fat particles that the gastrointestinal tract absorbs. (medlineplus.gov)
- Apolipoproteins function in lipid transport as structural components of lipoprotein particles, cofactors for enzymes and ligands for cell-surface receptors. (ebi.ac.uk)
- Apolipoproteins have important structural and functional roles in several lipoprotein particles. (springer.com)
- The apolipoproteins act as stabilizers of the intact lipoprotein particles. (abcam.com)
- In addition, quantitative immunological measurements of certain apolipoproteins (especially A-1 and B) have been suggested to be more accurate estimators of coronary heart disease than measurements of lipoprotein particles (especially HDL and LDL). (abcam.com)
- It does not interchange between lipoprotein particles, as do the other apolipoproteins, and it is found in IDL and LDL after the removal of the Apo-A, E, and C. Apo-B48 is present in chylomicrons and their remnants. (sigmaaldrich.com)
- Apolipoprotein B100 (Apo B) molecule is present in all major atherogenic particles (VLDL, IDL, LDL). (thefreedictionary.com)
- Serum apolipoprotein A1 (APO-A1), apolipoprotein B100 (APO-B100) and lipoprotein-(a) (LPA) were measured in the Pathology Laboratories of Postgraduate Lady Reading Hospital, Peshawar using turbiditrimetric kits of Roche Diagnostics, on chemistry auto analyzer, modular P-800 by Roche, Cobas (Japan). (thefreedictionary.com)
- This could explain reduced capacity of the liver to synthesize apolipoprotein B100 (ApoB100). (thefreedictionary.com)
- Is vitellogenin an ancestor of apolipoprotein B100 of human low-density lipoprotein and human lipoprotein lipase? (thefreedictionary.com)
- Primary structure of the bovine analogues to human apolipoproteins CII and CIII. (wikipedia.org)
- Apolipoprotein F (apoF) is one of the minor apolipoprotein in blood plasma and it is a lipid transfer inhibit protein to inhibit cholesteryl ester transfer protein-mediated transfers of cholesteryl esters and triglycerides. (wikipedia.org)
- Familial apolipoprotein CII deficiency is a very rare (rarer than LPL deficiency) autosomal recessive disorder in which apolipoprotein CII (apoC-II), a cofactor for LPL, is absent, the clearance of chylomicrons from the blood is greatly impaired and triglycerides (TG) accumulate in the plasma. (renalandurologynews.com)
- The present invention relates to methods of use of phosphonate-phosphates and diphosphonates to modulate apolipoprotein E levels and the use of such compounds in therapy, including cardiovascular and neurological disease states. (freepatentsonline.com)
- Alzheimers Is Genetic Protect Your Future www.alzheimer-herbs.com/ Apolipoprotein alzheimers disease connection The scientific enthusiasm about the possible role of amyloid protein in the pathology of Alzheimers disease has been further fueled by the results of molecular genetics studies that have identified genes associated with familial (inherited) Alzheimers disease on chromosomes 21, 14, 1, and 19. (slideshare.net)
- Title: The relationship between apolipoprotein genes polymorphisms and susceptibility to osteonecrosis of the femoral head: a meta-analysis. (nih.gov)
Lipid and apolipoprotein2
- In this study a series of Sicilian neonates was studied in order to investigate about the distribution of serum lipid and apolipoprotein at birth and the differences with adults. (springer.com)
- In conclusion lipid and apolipoprotein distributions in Sicilian newborns are not different from that of other population and there are no differences between males and females. (springer.com)
Levels of apolipoproteins1
- The determination of the circulating levels of apolipoproteins has become common practice in clinical laboratories, in view of the apparent correlation between levels of specific apolipoproteins and increased or decreased cardiovascular risk [1, 2]. (springer.com)
- Hundreds of genetic polymorphisms of the apolipoproteins have been described, and many of them alter their structure and function. (wikipedia.org)
- However, most apolipoproteins cannot be detected using standard clinical immunoassays, and multiplexing is not available for some species of apolipoproteins. (springer.com)
- Our Apolipoprotein L2 Lysates can be used in a variety of model species. (novusbio.com)
- Our Apolipoprotein C1 ELISA Kits can be used in a variety of model species: Human. (novusbio.com)
- Specific cross reaction of anti-apoLipoprotein antibodies with antigens from other species has not been determined. (rockland-inc.com)
- Deficiency of apoC-II can also be verified by gel electrophoresis of the apolipoproteins contained in VLDL and chylomicrons on 2D gels. (renalandurologynews.com)
- Structure of a biologically active fragment of human serum apolipoprotein C-II in the presence of sodium dodecyl sulfate and dodecylphosphocholine. (randox.com)
- Kukita M, Hiwada K, Kokubu T (1984) Serum apolipoprotein A-I, A-II and B levels and their discriminative values in relatives of patients with coronary artery disease. (springer.com)
- Serum apolipoprotein (apo)AI and -B have been shown to be associated with diabetic retinopathy, but the underlying mechanisms are unclear. (diabetesjournals.org)
- Contributions of domain structure and lipid interaction to the functionality of exchangeable human apolipoproteins. (ebi.ac.uk)
- OBJECTIVE To determine plasma apolipoprotein A-IV (apoA-IV) levels and phenotype distribution in non-insulin-dependent diabetes mellitus (NIDDM) patients and to analyze the influence of apoA-IV phenotype on lipid profiles in NIDDM. (diabetesjournals.org)
- Apply their overview of the roles of specific apolipoproteins in the brain to physiological and pathophysiological processes. (cyberounds.com)
- Vlad C, Burlacu A, Florea L, Artene B, Badarau S, Covic A et al (2019) A comprehensive review on apolipoproteins as nontraditional cardiovascular risk factors in end-stage renal disease: current evidence and perspectives. (springer.com)
- Apolipoprotein A-I Increases Insulin Secretion and Production From Pancreatic ß-Cells via a G-Protein-cAMP-PKA-FoxO1-Dependent Mechanism. (medscape.com)
- Nonhereditary apolipoprotein A-I (apoA-I) amyloid is characterized by deposits of nonvariant protein in atherosclerotic arteries. (sigmaaldrich.com)
- However, because of their detergent-like (amphipathic) properties, apolipoproteins and other amphipathic molecules (such as phospholipids) can surround the lipids, creating a lipoprotein particle that is itself water-soluble, and can thus be carried through water-based circulation (i.e., blood, lymph). (wikipedia.org)
- Nevertheless, due to of their amphipathic/detergent like characteristics, Apolipoproteins fence in the lipids, forming a lipoprotein particle which is soluble in water, hence travel in blood. (prospecbio.com)
- The role of HDL and its main protein component the apolipoprotein A-I as being antiatherogenic is well established. (nih.gov)
- Apolipoprotein B is the main protein component of LDL and accounts for approximately 95% of the total protein content of LDL. (cdc.gov)
- 1990). "Apolipoprotein D is the major protein component in cyst fluid from women with human breast gross cystic disease" . (wikidoc.org)
- Anti-Apolipoprotein J Antibody is useful for researchers interested in the immune system, Ubiquitin pathways, and cardiovascular research. (rockland-inc.com)
- We have discovered that natural variant versions of Apolipoprotein L1 (APOL1) that protect humans against infection by the parasite Trypanosoma rhodesiense (responsible for sleeping sickness) also cause kidney disease. (europa.eu)
- encoded search term (How are specimens collected and prepared for apolipoprotein A-I (Apo-A1) testing? (medscape.com)
- Your search returned 60 Apolipoprotein A-IV ELISA ELISA Kit across 1 supplier. (biocompare.com)
- Your search returned 1 apolipoprotein B mRNA editing enzyme catalytic subunit 2 ELISA ELISA Kit across 1 supplier. (biocompare.com)
- Pechlaner R, Tsimikas S, Yin X, Willeit P, Baig F, Santer P et al (2017) Very-low-density lipoprotein-associated apolipoproteins predict cardiovascular events and are lowered by inhibition of APOC-III. (springer.com)
- Association Between ApoA-I (Apolipoprotein A-I) Immune Complexes and Adverse Cardiovascular Events. (medscape.com)
- The agent blocks the function of the mRNA of apolipoprotein C3 and successfully treats severe hypertriglyceridaemia in phase 3 trials (Ionis Pharmaceuticals). (ovid.com)
- Fibrinogen alpha chain precursor and apolipoprotein a-I in urine as biomarkers for noninvasive diagnosis of calcium oxalate nephrolithiasis: a proteomics study. (medscape.com)
- In an immunochemical reaction, Apolipoprotein B in the human serum sample form immune complexes with specific antibodies. (cdc.gov)
- Anti-apolipoprotein antibodies have been used for indirect trapping ELISA for quantitation of antigen in serum using a standard curve, for immunoprecipitation and for western blotting for highly sensitive qualitative analysis. (rockland-inc.com)
- The defective binding of apolipoprotein (apo) E2 to lipoprotein receptors, an underlying cause of type III hyperlipoproteinemia, results from replacement of Arg 158 with Cys, disrupting the naturally occurring salt bridge between Asp 154 and Arg 158. (rcsb.org)
- Apolipoprotein E is a fat-binding protein ( apolipoprotein ) that is part of the chylomicron and intermediate-density lipoprotein (IDLs) . (wikidoc.org)
- Selenium has a positive effect on apolipoprotein B expression in hypercholesterolemia. (greenmedinfo.com)