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Serotonin (5-HT) induces platelet aggregation by activating its 5-HT2A receptor. Platelet uptake is mediated by the 5-HT transporter (5-HTT). A common 5-HTT promoter (5-HTTLPR) splice variant results in long (L) and short (S) alleles. 5-HTTLPR genotype has been associated with increased platelet activation and risk of MI. Variation within HTR2A gene (C1354T) that encodes the 5-HT2A receptor has also...
The platelet is a circulating anucleate cell particle created from the cytoplasm of megakaryocytes in the bone marrow from whence it derives much of its cytoplasmic content. Deposited at sites of vascular injury, its role in the processes of thrombosis and haemostasis is well defined. Many important insights into the platelets haemostatic role were gained through genetic studies of rare inherited...
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