PAF, platelet-activating factor
Platelet activating factor (PAF) stimulates the production of PAF acetylhydrolase by the human hepatoma cell line, HepG2
... degrades platelet-activating factor (PAF) by the hydrolysis of the sn-2 acetyl ...against PAF acetylhydrolase immunoprecipitated this ...activity. PAF added to the culture medium ...
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Characterization of serum platelet activating factor (PAF) acetylhydrolase Correlation between deficiency of serum PAF acetylhydrolase and respiratory symptoms in asthmatic children
... Platelet-activating factor (PAF) acetylhydrolase has been recognized as an enzyme that inactivates ...serum PAF acetylhydrolase ...of PAF acetylhydrolase (near the physiological ...
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Lipoprotein-associated phospholipase A2 (Lp-PLA2) activity, platelet-activating factor acetylhydrolase (PAF-AH) in leukocytes and body composition in healthy adults
... tumor-necrosis factor alpha (TNF-α), interleukin-6 (IL-6), platelet activating factor (PAF), PAF-like molecules and oxidized phospholipids ...
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Interaction Of Platelet Activating Factor Acetyl Hydrolase (Paf Ah) Enzyme In Gln281 To Arg281 Mutation Toward Paf And Its Molecular Dynamic
... Platelet Activating Factor Acetyl Hydrolase (PAF AH) or LpPLA2 is a key enzyme in myocardial infarction catalyzes the sn-2 acetyl group of Platelet Activating Factor ...
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Is Platelet-Activating Factor (PAF) a missing link for elucidating the mechanism of action of the coronavirus SARS-CoV-2 and explaining the side effects-complications of Covid-19 disease?
... Neutrophil activating factors may be derived from the host [e.g., platelet activating factor (PAF), leukotriene B4, interleukin-8 (IL-8)], or from pathogens ...protozoa, PAF, ...
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Activation of Platelet-activating Factor (PAF) Receptor Stimulates Nitric Oxide (NO) Release Via Protein Kinase C-α in HEC-1B Human Endometrial Epithelial Cell Line
... of PAF-mediated NO release, indicating ni- tric oxide synthase (NOS) ...activation. PAF-mediated NO release was also inhibited by the PKC inhibitor Ro 31-8220 and by the removal of extracellular cal- cium, ...
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Platelet activating factor A potent chemotactic and chemokinetic factor for human eosinophils
... hypereosinophilia. PAF-acether elicited directional locomotion of eosinophils, in a time- and dose-dependent fashion, at concentrations from 10(-5) to 10(-8) M; lyso-PAF had minimal activity over the same ...
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Metabolism of platelet activating factor in isolated perfused rat lung
... of platelet-activating factor (PAF) into the airway system of the lung is known to cause profound effects, yet little is known about the metabolism of this active lipid ...3H-Labeled ...
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Platelet activating factor causes ventilation perfusion mismatch in humans
... yr). PAF induced, compared to lyso-PAF, immediate leukopenia (P < ...after PAF, because of VA/Q mismatch: the dispersion of pulmonary blood flow and that of ventilation increased by ...inhaled ...
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Vasodilator and constrictor actions of platelet activating factor in the isolated microperfused afferent arteriole of the rabbit kidney Role of endothelium derived relaxing factor/nitric oxide and cyclooxygenase products
... concentrations PAF caused dose-dependent constriction of Af-Arts, with the maximum constriction being 34 +/- 10% at 4 x 10(-8) M (n = 9, P < ...of PAF, Af-Arts were preconstricted with norepinephrine and ...
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Viscum album L. & Abies alba borisii regis effects on platelet aggregation and tumor metastasis
... (ADP), platelet- activating factor (PAF), and arachidonic acid ...(ADP, PAF, and ARA), a leiomyosarcoma cell line (LMS cells, isolated from histological tumors in Wistar rats) (Avdikos ...
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Molecular and cellular actions of platelet activating factor in rat heart cells
... of PAF on heart cells using isolated adult and neonatal rat ...of PAF, in the superfusion solution, decreased twitch amplitude and contractile velocity in both ...of PAF below 1 nM ...
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Bowel necrosis induced by tumor necrosis factor in rats is mediated by platelet activating factor
... necrosis of the gastrointestinal tract. The morphological changes of TNF-induced bowel lesions are indistinguishable from those caused by PAF. The mechanism of TNF-induced bowel necrosis is unclear. In the present ...
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Platelet-Activating Factor-Acetylhydrolase Can Monodeacylate and Inactivate Lipoteichoic Acid
... with platelet-activating factor ...positions. PAF is normally inactivated by PAF-acetylhydrolase (PAF-AH), a phospholipase A2 (PLA2), which removes a short acyl group at the sn-2 ...
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Platelet activating factor levels and metabolism in tangier disease: a case study
... of PAF solution in chloroform/methanol (1:1 v/v) were evaporated under a stream of nitrogen and were redissolved in BSA ...obtain PAF solu- tions with final concentrations into cuvette ranging from ...
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Delineation of the Role of Platelet-Activating Factor in the Immunoglobulin G2 Antibody Response
... mediator platelet-activating factor (PAF; 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine) appears to have one of the most critical roles in the IgG2 ...response. PAF receptor ...
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Radiation therapy generates platelet-activating factor agonists
... of PAF-R agonists as a by-product of RT could provide an explanation for why RT-mediated abscopal effects are not seen consistently in the ...exogenous PAF agonists [23-24, 33-34]. Moreover, PAF and ...
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Evidence for the role of platelet activating factor in immune complex vasculitis in the rat
... of platelet-activating factor (PAF) in the pathogenesis of immune complex (IgG) induced dermal vasculitis in the ...of PAF "primed" rat neutrophils for enhanced ...The ...
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Binding and metabolism of platelet activating factor by human neutrophils
... reversible, and fit a two receptor model; dissociation constant (Kd) values for high and low affinity sites were 0.2 and 500 nM, respectively. Receptors with similar affinities were detected in whole cells. Furthermore, ...
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Effect of montelukast on platelet activating factor- and tachykinin induced mucus secretion in the rat
... active PAF. Its degradation to the inactive lyso-PAF is catalysed by a PAF-specific acetylhydrolase, which is abundantly present in plasma and intracellularly in several inflammatory cells ...[17]. ...
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