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Genetic variability in platelet integrin ?2?1 density: possible contributor to Plasmodium vivax-induced severe thrombocytopenia.


ABSTRACT: Understanding the pathogenesis of Plasmodium vivax malaria is challenging. We hypothesized that susceptibility to P. vivax-induced thrombocytopenia could be associated with polymorphisms on relevant platelet membrane integrins: integrin ?2 (C807T), and integrin ?3 (T1565C). Although ?3 polymorphism was not related with P. vivax malaria, ?2 807T carriers, which show high levels of integrin ?2?1, had a higher probability for severe thrombocytopenia than wild-type carriers. This evidence of the association of integrin polymorphism and P. vivax morbidity was further demonstrated by a moderate but significant correlation between clinical disease and surface levels of the integrin ?2?1.

SUBMITTER: Campos FM 

PROVIDER: S-EPMC3583325 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature

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Genetic variability in platelet integrin α2β1 density: possible contributor to Plasmodium vivax-induced severe thrombocytopenia.

Campos Fernanda M F FM   Santos Marina L S ML   Kano Flora S FS   Fontes Cor J F CJ   Lacerda Marcus V G MV   Brito Cristiana F A CF   Carvalho Luzia H LH  

The American journal of tropical medicine and hygiene 20121218 2


Understanding the pathogenesis of Plasmodium vivax malaria is challenging. We hypothesized that susceptibility to P. vivax-induced thrombocytopenia could be associated with polymorphisms on relevant platelet membrane integrins: integrin α2 (C807T), and integrin β3 (T1565C). Although β3 polymorphism was not related with P. vivax malaria, α2 807T carriers, which show high levels of integrin α2β1, had a higher probability for severe thrombocytopenia than wild-type carriers. This evidence of the ass  ...[more]

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