Key result
Aspirin inhibited collagen-induced platelet aggregation in both sexes, but spontaneous aggregation was only affected by aspirin in males.
Why the study?
Does aspirin inhibit spontaneous and collagen-induced platelet aggregation differently in whole blood from male versus female volunteers?
Population
Male and female volunteers (citrated whole blood samples)
Design
Preclinical
Authors
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May indicate sex-specific aspirin effects on spontaneous aggregation; hypothesis-generating and requires clinical validation before practice implications.
Does aspirin inhibit spontaneous and collagen-induced platelet aggregation differently in whole blood from male versus female volunteers?
Aspirin inhibits spontaneous platelet aggregation in whole blood from males but not females, providing a potential mechanistic explanation for sex differences observed in clinical trials of aspirin as an antithrombotic agent.
Harrison et al. (1983) studied this question. Aspirin was evaluated on Spontaneous and collagen-induced platelet aggregation. Aspirin inhibited collagen-induced platelet aggregation in both sexes, but spontaneous aggregation was only affected by aspirin in males.
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