The writer (Becker, 1952) has recently reported on the varied responses among both chicks and ducklings to blood-induced infection with Plasmodium lophurae. The present paper is concerned with hemagglutination reactions involving the plasmas of individual chickens and duck erythrocytes, on the one hand, and the plasmas of individual ducks and chicken erythrocytes, on the other. The agglutinations observed were the result of exposing the erythrocytes to diluted plasmas containing natural or innate agglutinins; i.e., agglutinins not formed as the result of active immunization through exposure to the antigens of the erythrocytes.

Looking for hemagglutination (HA) test? Find out information about hemagglutination (HA) test. Agglutination of red blood cells. the agglutination and subsequent precipitation of red blood cells, caused by hemagglutinins, bacteria, viruses, and agents... Explanation of hemagglutination (HA) test

Cicer arietinum lectin or agglutinin (CAL/CPA) is a homodimer composed of two subunits.This lectin is a glycoprotein that contains 4.5% neutral sugars and is basic in nature (pI: 9.0). Its haemagglutination activity is inhibited by fetuin and desialylated fetuin with a carbohydrate specificity for fetuin and p-Nitroph

haemagglutination test meaning in Hindi with examples: रक्‍तसमूहन परीक्षण ... click for more detailed meaning of haemagglutination test in Hindi with examples, definition, pronunciation and example sentences.

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Of serum that inhibited hemagglutination. HI antibody titers were summarized with the criteria conventionally used to assess the immunogenicity of influenza

Hemagglutination occurs when measles viruses and red blood cells are mixed (See image a). But, if the serum of a person infected with measles virus is mixed with RBC and measles virus, there wont be any agglutination of RBC. This phenomenon is known as hemagglutination inhibition. This arises because antibodies present in the serum of that infected person reacts with the measles viruses and neutralized them (positive result).. If the patients serum do not contain antibodies against surface proteins of test virus, there will be presence of hemagglutination as surface molecules are free to hemaaglutinate RBCs (negative result).. ...

Looking for hemagglutination inhibition (HI) test? Find out information about hemagglutination inhibition (HI) test. Agglutination of red blood cells. the agglutination and subsequent precipitation of red blood cells, caused by hemagglutinins, bacteria, viruses, and agents... Explanation of hemagglutination inhibition (HI) test

Polyagglutination refers to red blood cells that agglutinate upon exposure to almost all human sera, but not to autologous serum or the sera of newborns. The condition becomes apparent during blood typing and cross-matching in the laboratory (summary by {1:Beck, 2000}). Tn polyagglutination syndrome is an acquired clonal disorder characterized by the polyagglutination of red blood cells by naturally occurring anti-Tn antibodies following exposure of the Tn antigen on the surface of erythrocytes. Only a subset of red cells express the antigen, which can also be expressed on platelets and leukocytes. This condition may occur in healthy individuals who manifest asymptomatic anemia, leukopenia, or thrombocytopenia; however, there is also an association between the Tn antigen and leukemia or myelodysplastic disorders. The Tn antigen is an incompletely glycosylated membrane glycoprotein with an exposed N-acetylgalactosamine residue. The Tn antigen results from inactivation of C1GALT1C1, which encodes ...

3S18: Crystal structure of a plant albumin from Cicer arietinum (chickpea) possessing hemopexin fold and hemagglutination activity

Immunohematology work-up for incompatible cross-match was performed in the serology lab utilizing commercially procured antisera and column agglutination gel card (Tulip Diagnostics India Pvt. Ltd, Goa, India). The three cell-screening panel was procured commercially (ID Dia cell I, II, III; Bio-Rad, Switzerland), and in-house lectin was ready as per the usual methodology.We have come throughout a case of incompatible cross-match with damaging antibody display screen, auto-control, and Negative direct coombs take a look at. Cross-match with a number of grownup serum and twine serum offers us a clue in the direction of polyagglutination. Further, Polyagglutination was confirmed serologically utilizing anti-A1 lectin and later concludes of Tn kind by lectin ready in-house from Salvia Sclarea ...

Nonspecific agglutination of red cells in the presence of human serum, not related to blood group specificity. Often infection-related in children.

D:emant, P; Cherry, M; and Snell, G D., Hemagglutination and cytotoxic studies of H-2. II. Some new cytotoxic specificities. (1971). Faculty Research 1970 - 1979. 160 ...

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Agaricus bisporus agglutinin/lectin (ABA/ABL) is isolated from white button mushrooms. It has a molecular weight of 58, 500 as determined by gel filtration that corresponds to a tetramer, and has an isoelectric point that ranges between pH 5.0 and pH 6.0. ABA is a mixture of two phytohemagglutinins (PHA) with similar specificities for carbohydrate (PHA-A and PHA-B). Each monomer has 2 distinct carbohydrate binding sites, one for galactose-1, 3-N-acetylgalactosamine and another for galactose-1, 3-N-acetylglucosamine, but does not bind monosaccharides.ABA has a non-specific blood group recognition since PHA-A and PHA-B agglutinate erythrocytes independent of their blood group type. The O-linked glycopeptide released by trypsin is a potent inhibitor of both the isolectins. Removal of the terminal sialic acid residue from the glycopeptide increases its inhibitory potency by 8-fold. Periodate or -galactosidase treatment of the trypsin released glycopeptide destroys all inhibitory activity. Simple ...

Agaricus bisporus agglutinin/lectin (ABA/ABL) is isolated from white button mushrooms. It has a molecular weight of 58, 500 as determined by gel filtration that corresponds to a tetramer, and has an isoelectric point that ranges between pH 5.0 and pH 6.0. ABA is a mixture of two phytohemagglutinins (PHA) with similar specificities for carbohydrate (PHA-A and PHA-B). Each monomer has 2 distinct carbohydrate binding sites, one for galactose-1, 3-N-acetylgalactosamine and another for galactose-1, 3-N-acetylglucosamine, but does not bind monosaccharides.ABA has a non-specific blood group recognition since PHA-A and PHA-B agglutinate erythrocytes independent of their blood group type. The O-linked glycopeptide released by trypsin is a potent inhibitor of both the isolectins. Removal of the terminal sialic acid residue from the glycopeptide increases its inhibitory potency by 8-fold. Periodate or -galactosidase treatment of the trypsin released glycopeptide destroys all inhibitory activity. Simple ...

Human and animal (avian and equine) influenza A virus isolates of the H3 serotype exhibit marked differences in their ability to bind specific sialyloligosaccharide sequences that serve as cell surface receptor determinants (G. Rogers and J. Paulson, 1983, Virology 127, 361-373). Whereas human isolates of this subtype strongly agglutinate enzymatically modified human erythrocytes containing the terminal SA alpha 2,6Gal sequence, avian and equine isolates preferentially agglutinate erythrocytes bearing the SA alpha 2, 3Gal sequence. As shown in this report, a glycoprotein found in horse serum, alpha 2-macroglobulin, is a potent inhibitor of viral adsorption to the cell surface for human H3 isolates. In contrast, avian and equine isolates are poorly inhibited suggesting a correlation between receptor specificity and inhibitor sensitivity. Growth of a human H3 isolate (A/Memphis/102/72) on MDCK cells in the presence of horse serum resulted in an overall shift in the virus receptor specificity from

Recent studies from our laboratory and others demonstrated the feasibility of using HuMAbs for preexposure prophylaxis against infectious diseases (22). A similar strategy could be used to prevent diarrhea disease caused by enteric pathogens such as ETEC. ETEC fimbrial adhesin subunits mediate adherence of the bacteria to the small intestine as the first step of a cascade of events leading to diarrhea. Studies in animal models and in human vaccine clinical trials have demonstrated that immunity against adhesion is sufficient to elicit effective protection against ETEC infection (16, 17). In the present study, we produced and characterized HuMAbs that recognize the N-terminal portion of CfaE (CfaE-N), the adhesin subunit involved in bacterial adhesion to host cells. Among the 300 isolated HuMAbs, 10 lead candidates were selected based on their ability to block mannose-resistant hemagglutination (MRHA) and to inhibit adhesion of ETEC to Caco-2 cells. When administered orally to mice by premixing ...

Definition of reverse passive hemagglutination. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.

Ishida A, Akita K, Mori Y, Tanida S, Toda M, Inoue M, Nakada H. Negative regulation of Toll-like receptor-4 signaling through the binding of glycosylphosphatidylinositol-anchored glycoprotein, CD14, with the sialic acid-binding lectin, CD33 ...

Title: A Sialic Acid-Specific Lectin from the Mushroom Paecilomyces Japonica that Exhibits Hemagglutination Activity and Cytotoxicity. VOLUME: 11 ISSUE: 6. Author(s):Jee Hun Park, Chang Soo Ryu, Ha Na Kim, Young Jun Na, Hyun Joo Park and HaHyung Kim. Affiliation:Physical Pharmacy Laboratory, College of Pharmacy, Chung-Ang University, 221 Huksuk-dong, Dongjakku, Seoul 156-756, Korea Correspondence To: HaHyung Kim.. Keywords:sialic acid, lectin, mushroom, paecilomyces japonica, hemagglutination, cytotoxicity. Abstract: The mushroom Paecilomyces japonica, grown on the silkworm larvae, has been used in Asia as a nutraceutical, tea, and Chinese medicine. In the present study, a sialic acid-specific lectin has been purified from the mushroom P. japonica using affinity chromatography on a fetuin-agarose column. Electrophoretical analyses indicated that this lectin, designated P. japon ica agglu tinin (PJA), is an acidic protein with a molecular mass of 16 kDa, and has no intermolecular disulfide bonds. ...

Serological assays based on hemagglutination inhibition (HI) are historically the most common way to determine antigenic characteristics of influenza A viruses, and the HI test also serves as a functional assay for detection of anti-influenza antibodies in sera.11 The HI test exploits the ability of influenza viruses to agglutinate red blood cells (RBCs), a characteristic for which the HA gene was named. Thus, an influenza virus can be identified as to its subtype in an HI assay. A standard concentration of influenza virus (antigen) and serial dilutions of HA-subtype-specific antiserum are mixed, and after a short incubation period, RBCs are added to the antigen-antibody mixture.12 If the serum antibodies bind to the viral hemagglutinin, hemagglutination is inhibited, and the RBCs settle to the bottom of the test well. Hemagglutination reactions are compared among the sets of antisera and viral antigens in a test panel, and assumptions are made concerning the antigenic relatedness of the viruses ...

Summary Strains of Escherichia coli from sporadic cases of diarrhoea and belonging to serotypes O44:H18, O55:H7, O111ab:H21 O111ab:H25 or O126:H25 or O126:H27 were examined for virulence properties. With the exception of O111ab:H25 these are considered to be classical enteropathogenic E. coli (EPEC) serotypes. The strains had been isolated in Britain from the faeces of children |3 years old. Of the serotypes examined, 7 of 13 O44:H18 strains, all of 10 O111ab:H21 strains and 13 of 21 O126:H27 strains belonged to the enteroaggregative class of E. coli (EAggEC) that attached to HEp-2 cells in the characteristic aggregative pattern and hybridised with the EAggEC probe. They also caused mannose-resistant haemagglutination of rat erythrocytes, a property which may be a useful marker for their identification. Strains of O44:H18 with similar properties were also isolated from three small outbreaks in Britain, one of which involved elderly patients. EAggEC have not been considered previously as aetiological

Modified indirect hemagglutination test for detection of treponemal antibodies in finger-prick blood.: A modified indirect hemagglutination test for the detecti

InDevR, Inc., an innovative life science company dedicated to improving biopharmaceutical and vaccine manufacturing, announced study results and a joint publication with the U.S. Food and Drug Administration (FDA) of Automated interpretation of influenza hemagglutination inhibition (HAI) assays: is plate tilting necessary? in the scientific journal PLOS ONE.. Serological screening is an important step in influenza monitoring and vaccine development. The hemagglutination inhibition assay (HAI) is widely used to evaluate vaccine-induced antibody responses as well as to antigenically characterize influenza viruses. HAI results are based on an endpoint titration where the titers are typically manually interpreted and recorded by a trained expert. For serological applications, the lack of a standardized endpoint interpretation and presence of interfering non-specific inhibitors can translate into a high degree of variability in the results. This variability along with the lack of a digital record ...

Studies of the inheritance of C3 types and partial deficiency of C3 in over 100 relatives of a previously reported Afrikaner child with virtually no serum C3 revealed that she was homozygous for a C3 gene producing little or no C3, C3-. Metabolic studies with purified radiolabeled C3 in this patient showed a mildly elevated fractional catabolic rate and a markedly reduced synthesis rate for C3. There was also a mild increase in the rate of conversion in vitro of labeled C3 added to her serum and incubated at 37°C for 1 hr. The intradermal injection of C1̄s, which produces a marked increase in vasopermeability in the skin of normal subjects, produced no definite change in the patient, possibly implicating C3 or a protein in the alternative pathway as the normal mediator of this response. On incubating the patients serum with purified cobra venom factor in the presence of unsensitized guinea pig erythrocytes, C5 inactivation and normal lysis of the red cells occurred, consistent with the venom ...

Hemadsorption is similar to hemagglutination; it can refer to: The clumping together of red blood cells to other cells or particles, or to substrates. T...

海词词典，最权威的学习词典，专业出版acidic agglutination是什么意思，acidic agglutination的用法，acidic agglutination翻译和读音等详细讲解。海词词典：学习变容易，记忆很深刻。

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whats a Eucaryotic cell?http://library.thinkquest.org/C004535/eukaryotic_cells.html. thanx, you guys are awesome!!. Any time!. eucaryote= no nucleu...

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Looking for online definition of agglutination reaction in the Medical Dictionary? agglutination reaction explanation free. What is agglutination reaction? Meaning of agglutination reaction medical term. What does agglutination reaction mean?

Definition of Treponema pallidum hemagglutination assay in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is Treponema pallidum hemagglutination assay? Meaning of Treponema pallidum hemagglutination assay as a legal term. What does Treponema pallidum hemagglutination assay mean in law?

Chemical signaling between cells in multicellular organisms is frequently mediated by cell-surface receptors. The receptors for neurotransmitters, protein hormones, growth factors, and plant lectins are a few of the many known examples of these important membrane components. In this exercise, students examine the cell location and properties of the receptor for the lectin concanavalin A. In the first experiment of the series, students use a concanavalin A-peroxidase complex in a microscopic assay to show that the specific receptor is found on the surface of their own cheek epithelial cells. In the second part of the exercise, students study the characteristic hemagglutination reaction that is elicited by concanavalin A and learn that the reaction is due to multiple sites for receptor binding on the concanavalin A molecule. It is known that concanavalin A binds selectively to mannose residues on the cell-surface glycoprotein receptor. This specificity is confirmed in the final experiment of the ...

Rat monoclonal Macrophage specific lectin antibody [ER-MP23]. Validated in IHC, Flow Cyt and tested in Mouse. Cited in 6 publication(s). Independently reviewed in 1 review(s). Immunogen corresponding…

Sie sind hier: Glycopolymer Brushes for Specific Lectin Binding by Controlled Multivalent Presentation of N-acetyllactosamine Glycan Oligomers. ...

Abramson, Harold Alexander, Furchgott, Robert F., Ponder, Eric (March 1939) The electrophoretic mobility of rabbit erythrocytes and ghosts. J Gen Physiol., 22 (4). pp. 545-553. ...

A simple and rapid method of quantifying the amount of virus in a sample. Haemagglutination is the agglutination of red blood cells. Viruses with envelops or surface proteins ...

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Malignant mesothelioma is an aggressive cancer with limited therapeutic options. Sialic acid-binding lectin isolated from Rana catesbeiana oocytes (cSBL) is a multifunctional protein with anti-cancer activity. The effects of pemetrexed, cisplatin, and cSBL were evaluated in mesothelioma and normal mesothelial cell lines. We evaluated cytotoxicity, apoptosis, caspase-3 cleavage and activation, cell proliferation, cell cycle arrest, and levels of cell cycle proteins in H28 cells treated with pemetrexed, cisplatin, and cSBL alone or in combination. Treatment with cSBL alone was cytotoxic to mesothelioma cells. The anti-cancer effect of cSBL was observed in a broader range of cell lines and exhibited greater cancer cell selectivity than pemetrexed or cisplatin. Combination treatment with pemetrexed + cSBL resulted in greater dose-dependent cytotoxicity than pemetrexed + cisplatin, the standard of care in mesothelioma. The synergistic effect of pemetrexed + cSBL was mediated by the cytostatic effect ...

Evaluation of a rubella hemagglutination inhibition test system.: Two systems for measurement of rubella hemagglutination inhibition antibodies were compared. O

Enteroaggregative Escherichia coli (EAggEC) is one of the pathogenic E. coli strains which may cause diarrhoea. In vitro studies have shown that EAggEC strains could establish a stacked-brick like adherence pattern on the surface of tissue culture cells and such a pattern is termed as aggregative adherence (AA). The purpose of this study is to compare the methods of polymerase chain reaction (PCR), HeLa cell adhesion, hemagglutination, and bacteria clumping tests for the specific detection of EAggEC suspected strains. This study isolated 340 E. coli strains from clinical samples of diarrhea cases which were firstly screened with the PCR method for the presence of suspected EaggEC strains. Strains of negative PCR results were also confirmed with HeLa cell adhesion and bacteria clumping tests for the EAggEC activity. Results showed that of these 340 clinical isolates, only three are EAggEC strains. Thus, EAggEC strains accounted for 0.88% in total strains. Also, for the above described methods, the in

Definition of Treponema pallidum hemagglutination test. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.

Summary The hemagglutination method, as suggested by Neter et al. for enteric infections producing low serum agglutinin titers, was applied to V. comma antigens and antisera. Both serial tube dilution and slide tests were employed and gave satisfactory results.

This invention provides particles for agglutination reaction measurement with high antigen potency. They were characterized by revealing the antigen, which has polylysine from recombinant DNA, and have combined this with the particles for agglutination reaction measurement. The particles for agglutination reaction measurement do not carry the antigen (which is infectious) and are safe. The particles for agglutination reaction measurement can be manufactured easily and in large quantities ...

The aim of this work was to study synthetic polycation effects on erythrocyte agglutination mediated by anti-glycophorin using image digital analysis. Polycations are oligomers or polymers of natural or synthetic origin, which bear a great number of positive charges at pH 7.4. Several of these polycations are nowadays used in clinic for human and veterinary purposes. New applications of polycations to the development of new drug delivery systems are investigated, in order to promote the drug absorption through the gastro-intestinal and blood brain barriers. However, up to now, there are no clear relationships between macromolecular features of polycations (molecular weight, mean charge density, charge repartition, etc.) and their interactions with blood elements (which bear superficial negative charges). The interaction on the red blood cell membrane with synthetic polycations having well-controlled macromolecular features and functionalized with pendent polyethylene glycol segments was ...

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Parallel testing of 895 sera by indirect hemagglutination and indirect fluorescent-antibody techniques showed 97.3% agreement. Although the indirect hemagglutination technique usually showed more cross-reactivity among serogroups than the indirect fluorescent-antibody technique with Formalin-fixed antigens and a conjugate which detected primarily immunoglobulin G antibodies, heterologous serogroup reactions were significantly lower than homologous serogroup titers and the etiological serogroup could be easily defined. The indirect hemagglutination techniques showed no cross-reactivity with a crude extract of Escherichia coli O13:K92:H4. Since the indirect hemagglutination technique was shown to detect both immunoglobulin M and immunoglobulin G antibodies and was found to be rapid, simple, and inexpensive, it appears to be an excellent alternative to the indirect fluorescent-antibody test for serodiagnosis of legionellosis. ...

Centers for Disease Control and Prevention have determined that some adults have serum cross-reactive antibodies to the new influenza H1N1 virus. One of the techniques used to reach this conclusion is the hemagglutination inhibition (HI) assay. How does this assay work? To understand the HI assay, we must discuss the h

An immunodiagnostic test card includes a plurality of transparent chambers wherein each chamber includes a quantity of testing material that combines with a patient sample, when mixed, to produce an agglutination reaction. A plurality of indicia are disposed to aid in the manufacture and determining the usability of the cards prior to test and also in objectively grading the agglutination reactions that are formed or lack of agglutination.

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Did you know that pressure cooking-while it works with many foods to destroy or drastically reduce lectin protein content-actually functions to enhance and strengthen it in others? ...