How can we inhibit 5-HT-induced platelet aggregation and why should we bother?

  • 1 January 1988
    • journal article
    • Vol. 115  (4) , 475-8
Abstract
Different 5-HT receptor antagonists inhibit 5-HT-induced platelet aggregation with different potencies. The inhibitory effects of seven relatively potent antagonists could not be surmounted by increasing the concentration of 5-HT, but the inhibitory effects of seven less potent antagonists could be surmounted by 5-HT. Verapamil has in insurmountable inhibitory effect on 5-HT-induced aggregation at relatively low concentrations. Amlodipine is a very weak inhibitory of 5-HT-induced aggregation. Verapamil is more effective as an inhibitory of 5-HT-induced aggregation than it is of aggregation induced by PAF, adrenaline or ADP. The platelet aggregation obtained in whole blood in response to 5-HT, PAF, U46619 or ADP is not different in patients with peripheral vascular disease and age-sex matched controls.

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