Hydrogen peroxide triggers activation of human platelets selectively exposed to nonaggregating concentrations of arachidonic acid and collagen.


The effects of H2O2 on platelet function were investigated in vitro and ex vivo. H2O2 (0.5 to 5 mumol/L) alone did not influence platelet function, but when it was combined with subthreshold concentrations of arachidonic acid or collagen, it induced platelet aggregation and serotonin release in a dose-dependent fashion. The increase in platelet aggregation… (More)


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