Effect of strenuous exercise on platelet activation state and reactivity.

作者: A S Kestin , P A Ellis , M R Barnard , A Errichetti , B A Rosner

DOI: 10.1161/01.CIR.88.4.1502

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摘要: BACKGROUNDIt has been hypothesized that platelets are activated, or made more activatible, by strenuous exercise and these changes may play a role in the genesis of exercise-induced coronary ischemia. Previous studies have yielded conflicting results but used assays (eg, platelet aggregation, plasma factor 4, beta-thromboglobulin) subject to methodological problems.METHODS AND RESULTSIn present study, whole blood flow cytometric method was study activation state reactivity 12 physically active sedentary individuals before after standardized treadmill testing. The peptide gly-pro-arg-pro (GPRP) included this assay prevent fibrin polymerization thus allowing measurement thrombin individual physiological milieu blood. A panel fluorescent-labeled monoclonal antibodies monitor activation-dependent surface c...

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