E389-13 Standard Test Method for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Coarser for Metal-Bearing Ores and Related Materials screen analysis~ particle size~ metallic ores~
Macrophages are an important source of pro-inflammatory and pro-angiogenic factors, which can promote pathological processes involving inflammation and angiogenesis. This study investigated the effects of Apelin on macrophages under both normal and hypoxic conditions. Under normal culture conditions, Apelin down-regulated the mRNA expression levels of monocyte chemotactic protein 1 (MCP1), monocyte chemotactic protein 3 (MCP3), macrophage inflammatory protein 1 (MIP1 alpha, MIP1 beta), vascular endothelial growth factor A (VEGFA), Angiopoietin 2 (Ang2) and tumor necrosis factor alpha (TNF alpha). The supernatant concentrations of MCP1, MCP3, MIP1 alpha, MIP1 beta, macrophage inflammatory protein 2 (MIP2) and TNF alpha proteins were significantly decreased in the Apelin treated group. Hypoxia induced profound up-regulations of the angiogenic, chemokine, and inflammatory factors at both the mRNA and protein levels. Apelin suppressed the hypoxia-induced increases in MCP1, MCP3, MIP2, MIP1 beta and ...
As with any breakthrough, new questions arise and new experiments become feasible.....One problem, however, is that CD32a is a marker for only 50% of the reservoir, whereas the eradication of latent HIV would require a much greater reduction in the number of latently infected cells in the body. Moreover, targeting CD32a would also make the antigen-presenting cells that normally express CD32a vulnerable to destruction, which might well cause unwanted or harmful side effects.....Second, the authors studied CD4 lymphocytes from the blood, but these circulating cells account for 2%, at most, of the CD4 T cells in the body2. It remains to be seen whether CD32a is as good a marker for latently infected cells in the lymph nodes, bone marrow, gut and other tissues. Perhaps more markers could be identified from the 103 differentially expressed genes found in the researchers screen - analysis of these proteins in combination with CD32a might increase the total proportion of identifiable latent ...
Looking for online definition of corticotroph cell in the Medical Dictionary? corticotroph cell explanation free. What is corticotroph cell? Meaning of corticotroph cell medical term. What does corticotroph cell mean?
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The aging in men is accompanied by an increase in the presence of connective tissue in all the organs and tissues, and with increase of corticotrophs and folliculostellate cells in adenohypophysis, which can affect the function of the HPA axis in healthy elderly individuals. Objective of the research was to perform quantification of structural changes during aging (cellularity, presence of the connective tissue and blood flow), collagen type IV, corticotrophs and folliculostellate cells on the pituitary tissue, obtained at autopsy, using histochemical, immunohistochemical and morphometric methods. Histochemical part of the research showed an increase of the cell size that occured during normal aging in the adenohypophysis. The analyzed cells of the adenohypophysis were significantly larger and, at the same time, they were characterized by a substantially more regular shape in female in comparison to the male patients cases. Differences in the cellular composition of the pituitary ...
Corticotroph releasing hormone (CRH) is one of the major regulatory hormones associated with the neuroendocrine response to stress. Pituitary corticotroph cells generate repetitive action potentials and associated Ca2+ transients in response to the agonist CRH. The mechanisms underlying this process are complex. CRH is known to activate the adenosine 3,5-cyclic monophosphate (cAMP)-dependent protein kinase A (PKA) pathway. PKA phosphorylates L-type voltage-sensitive Ca2+ channels, activating them and contributing to the generation of an action potential and Ca2+ transients. In an earlier Hodgkin-Huxley type mathematical model of this process, LeBeau et al. showed than an increase in the L-type current was sufficient to generate repetitive action potentials from a resting state in the model (LeBeau et al., 1997). However, they found that the action potential frequency of the model was much higher than the observed experimental action potential frequency. This problem was addressed in the ...
Anti-ACTH is a useful marker in classification of pituitary tumors and the study of pituitary disease. It reacts with ACTH-producing cells (corticotrophs). It also may react with other tumors (e.g. some small cell carcinomas of the lung) causing paraneoplastic syndromes by secreting ACTH ...
The involvement of excitatory amino acids in the control of ACTH release is well established. Activation of ionotropic glutamate receptors has a stimulatory effect on ACTH release, while the role of...
Proinsulin is converted into insulin by the action of two endoproteases. Type I (PC1/PC3) is thought to cleave between the B-chain and the connecting peptide (C-peptide) and type II (PC2) between the C-peptide and the A-chain. An acidic region immediately C-terminal to the point of cleavage at the B-chain/C-peptide junction is well conserved throughout evolution and has been suggested to be important for proinsulin conversion [Gross, Villa-Komaroff, Kahn, Weir and Halban (1989) J. Biol. Chem. 264, 21486-21490]. We have here compared the precise role of this region as a whole and just the first acidic residue C-terminal to the point of cleavage in processing of proinsulin by PC3. To this end, several mutations were introduced in this region of human proinsulin (native sequence, B-chain RREAEDL C-peptide): RRPAEDL (C1Pro mutant); RRLAEDL (C1Leu mutant); RRL (C1-C4del mutant); RRE (del-C1Glu mutant). Mutant and native cDNAs were stably transfected into AtT20 (pituitary corticotroph) cells, in which ...
Semantic Scholar extracted view of [Chimeras from regulatory peptides as a device for studying their action]. by E. P. Kharchenko et al.
The universal response to cellular stress involves expression of chaperones to protect and refold proteins undergoing denaturation, or to send irretrievably damaged proteins into the ubiquitin-proteasome pathway for degradation. In addition, it has become clear that protection from oxidative stress is a component of the minimal stress proteome (Kültz, 2005), and oxidative stress proteins are often increased in abundance after heat stress, including in bivalves (Tomanek and Zuzow, 2010; Fields et al., 2012a). Stress proteins form a substantial portion of the proteomic response to acute heat exposure in G. demissa, but interestingly, changes in abundance do not appear immediately (i.e. at 0 h), instead becoming apparent at the 3 h time point.. Among the stress proteins increased in abundance at 3 h are GRP78, HSP24.1 and PPIase (Fig. 4A). GRP78 is an HSP70 analog found in the endoplasmic reticulum, where it has a central role in the unfolded protein response (Lai et al., 2010) and may help limit ...
Authors Abstract: COPYRIGHT 1999, John Wiley & Sons, Inc. The release of Ca(super 2+) from intracellular stores is an important trigger for secretion in many sell types. Depending on the spatial relationship between the intracellular Ca(super 2+) stores and the site of exocytosis, the Ca(super 2+) signal can be very local or spread throughout the entire cell. Here, we review how the release of Ca(super 2+) from inositol trisphospate (IP(sub 3))-sensitive stores contributes differently to the stimulus-secretion coupling in three types of secretory cells (acinar cells of the pancrease, gonadotrophs, and corticotrophs of the anterior pituitary gland). We propose that in both pancreatic acinar cells and pituitary gonadotrophs the IP(sub 3)-sensitive stores may be in close proximity to the sites of exocytosis such that the concentration of Ca(super 2+) at those sites are transiently much higher than the average cytosolic (Ca(sub 2+) concentration. In contract, the local Ca(super 2+) gradient is less ...
Species: Mouse Immunogen: Synthetic peptide corresponding to aa 1-24 of human ACTH (AH26); N-terminal fragment of human ACTH conjugated to KLH (57). Clone: AH26 & 57 Isotype: IgG1, kappa (AH26); IgG1, kappa (57). Species Reactivity: Human, Mouse, and Rat. Expected to show a broad species reactivity. Positive Control: Normal pituitary gland or pituitary tumor. Specificity: This antibody is specific to Synacthen (aa 1-24 of ACTH); this antibody does not react with CLIP (aa 17-39 of ACTH). Anti-ACTH is a useful marker in classification of pituitary tumors and in the study of pituitary disease. It reacts with ACTH-producing cells (corticotrophs). It also may react with other tumors (e.g. some small cell carcinomas of the lung) causing paraneoplastic syndromes by secreting ACTH. Status: ...
Combine the advantages of rationally designed shRNA with selectable promoters and reporters to perform functional screens of hundreds or thousands of shRNAs in dividing and non-dividing cells.
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TY - JOUR. T1 - Apelin regulates the electrophysiological characteristics of atrial myocytes. AU - Cheng, Chen Chuan. AU - Weerateerangkul, Punate. AU - Lu, Yen Yu. AU - Chen, Yao Chang. AU - Lin, Yung Kuo. AU - Chen, Shih Ann. AU - Chen, Yi Jen. PY - 2013/1. Y1 - 2013/1. N2 - Backgroud: Apelin, a potential agent for treating heart failure, has various ionic effects on ventricular myocytes. However, the effects of apelin on the atrium are not clear. The purpose of this study was to investigate the acute effects of apelin on the electrophysiological characteristics of atrial myocytes. Method: Whole-cell patch-clamp techniques were used to investigate the action potential (AP) and ionic currents in isolated rabbit left atrial (LA) myocytes before and after the administration of apelin. Result: Apelin reduced LA AP duration measured at 90%, 50% and 20% repolarization of the amplitude by 11±3%, 24±5%, 30±7% at 1nM (n=11), and by 14±4%, 36±6% and 45±5% at 10nM (n=11), but not at 0·1nM. Apeline ...
Cambia means change.Cambia is an independent non-profit institute creating new technologies, tools and paradigms to promote change and enable innovation. ...
Forskare i Cederträ-Sinaien Samuel Oschin som Omfattande Cancer Instiftar upptäckt i pre-kliniskt, modellerar att dormant prostatacancerceller som finnas i bensilkespapper kan reawakeneds och att
För att uppmärksamma att Sveriges diplomatiska relationer med Japan firar 150 år under 2018 genomförs en särskild utlysning i samarbete mellan STINT och Riksbankens Jubileumsfond (RJ).. ...
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Research outputs, collaborations and relationships for MOH Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, PUHSC PKU published between 1 December 2017 - 30 November 2018 as tracked by the Nature Index.
Studiens syfte var att undersöka erfarenheter hos psykoterapeuter inom psykiatrin av att bedriva KBT med patienter som samtidigt lever med kronisk och/eller allvarlig somatisk sjukdom. Detta utifrån frågeställningar om hur KBT-terapeuter beskriver hur samtidig allvarlig och/eller kronisk somatisk sjukdom påverkar det terapeutiska arbetet och hur terapeuterna förhåller sig till denna påverkan i relation till att genomföra terapin? Semistrukturerade intervjuer genomfördes med sex psykoterapeuter som alla hade KBT-inriktning och arbetade inom psykiatrin. En tematisk analys gjordes sedan av intervjuerna och där framkom huvudteman som följsamhet, helhetssyn och organisatorisk påverkan. Följsamhet till patienternas behov av anpassning gällde allt från längden på sessionerna till möjligheten att pausa terapin under vissa perioder. Att ha en helhetssyn kunde innebära att psykoterapeuten klev utanför sitt expertområde för att samarbeta med den somatiska vården kring en patient, ...
LifeMap Lösningar, Inc., en medicinsk teknologistart fokuserad på att skapa innovativa mobila vård- produkter (för mHealth) och servar drivit av stora data, meddelade i dag att en initial $5 miljon
The inotropic and vasoactive properties of the ligand apelin and its cognate G-protein coupled receptor APJ have been characterized by administration of exogenous peptide, but the function of endogenous apelin on the cardiovascular system is not well described. To investigate the tonic effects of apelin-APJ in contractile function, we generated and characterized apelin and APJ null mice. We also investigated the regulation of apelin and APJ receptor expression in response to cardiac pressure overload. While knockout apelin mice were viable and fertile, APJ null mice showed evidence of fetal wastage for approximately half of the embryos. Compared to wild-type controls, APJ deficient mice reaching adulthood had significantly reduced exercise capacity (treadmill runtime: 20.30 ± 0.974 vs. 23.64 ± 0.737, P=0.009) and LV fractional shortening by echocardiography (29.88 ± 0.927% vs. 44.93 ± 2.66%, P,0.0001). Isolated myocytes from APJ knockouts exhibited reduced sarcomeric shortening (5.070 ± ...
The clinical success of targeted therapies along with technological advances in genome-wide profiling have spurred large-scale efforts to systematically map the molecular landscape of human cancers. These approaches nominate candidate essential or tumor suppressor genes, but are not able to identify all types of acquired vulnerabilities, such as synthetic lethal relationships between aberrantly regulated pathways.. Functional studies are therefore an essential complement to these approaches, serving both to confirm the biological roles of candidate cancer genes, and also to identify other vulnerabilities that are acquired as a consequence of observed genetic alterations.. Pooled short hairpin RNAi screening is proving to be a powerful method by which loss-of-function studies can identify new cancer targets. We are developing novel in vivo methods to identify genes which are essential for lung tumorigenesis, using mini-libraries of short hairpins against selected genes of interest.. ...
Syftet med denna studie är att undersöka vilket stöd ensamkommande barn behöver vid ankomsten till Sverige utifrån personalens erfarenhet. Metoden är en kvalitativ studie som baseras utifrån intervjuer och litteraturkunskap för att få mer ingående och friare svar från intervjupersonerna. Huvudteman som framkom under intervjuerna är grundläggande behov, stödet som erbjuds, trygghet, föräldragestalter, utbildning, fritid och hinder i arbetet. Samtliga intervjupersoner beskriver ungdomarnas behov mycket olika då det skiljer sig från person till person. Det stöd barnen får är den viktigaste faktor som de ensamkommande barnen behöver för att kunna utvecklas och få ett bättre och tryggare liv. Resultatet visar att personalen har vetskap om all den kunskap som behövs för att kunna vara en bra förebild och en stödjande vuxen i barnens vardag. Det framkom tydligt hur relationen och tryggheten för de ensamkommande barnen är avgörande och ...
and so publications internetprofessional essay writersand after that items on-line Målgruppsanpassning av ett budskap är många gånger svårt att genomföra utan att trampa på någons ideologiska självkänsla. Jag tänker närmast på stora organisationers offentliga budskap, och framför allt i den offentliga sektorn. För att förtydliga lite tänkte jag ta några exempel på politiska budskap och hur dessa förmedlats till allmänheten, och hur de har bemötts internt.