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    Braz J Med Biol Res. 1988;21(3):535-8.

    A novel property of an aqueous guaraná extract (Paullinia cupana): inhibition of platelet aggregation in vitro and in vivo.

    Bydlowski SP, Yunker RL, Subbiah MT.

    Source

    Departamento de Ciências Fisiológicas, Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brasil.

    Abstract

    Aqueous extracts of guaraná were studied in terms of effects on the aggregation of human and rabbit platelets. Guaraná extracts have anti-aggregatory and de-aggregatory actions on platelet aggregation induced by ADP or arachidonate but not by collagen. The active material was shown to be water soluble and heat resistant and appeared to be different from salicylates, nicotinic acid or known xanthines. Guaraná extracts inhibited platelet aggregation in rabbits following either intravenous or oral administration.

    PMID:
    3228635
    [PubMed - indexed for MEDLINE]

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