Comparison of the inhibitory effect of T-2 toxin on bovine platelet function with that of other known platelet inhibitors

The inhibitory effects of T-2 toxin on bovine platelet function and thromboxane A 2 production were compared with those of the known inhibitors of human platelet function, acetylsalicylic acid, dipyridamole and verapamil. T-2 toxin (1 × 10 −3M) effectively inhibited bovine platelet aggregation (33.2...

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Veröffentlicht in:Toxicology in vitro 1988, Vol.2 (4), p.241-245
Hauptverfasser: Bondy, G.S., Gentry, P.A.
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description The inhibitory effects of T-2 toxin on bovine platelet function and thromboxane A 2 production were compared with those of the known inhibitors of human platelet function, acetylsalicylic acid, dipyridamole and verapamil. T-2 toxin (1 × 10 −3M) effectively inhibited bovine platelet aggregation (33.2–64.3%), whereas neither acetylsalicylic acid nor dipyridamole did so. T-2 toxin appeared to be a less effective inhibitor of platelet aggregation than the calcium channel blocker, verapamil. T-2 toxin (1 × 10 −3M) added to platelet suspensions together with verapamil, produced an additive inhibitory response. T-2 toxin (2.5 × 10 −4M) effectively inhibited the release of thromboxane A 2 from ADP-stimulated bovine platelets as did acetylsalicylic acid and verapamil but not dipyridamole. T-2 toxin appears to inhibit bovine platelets by a biochemical mechanism distinct from that of the other inhibitors.
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subjects Biological and medical sciences
Medical sciences
Plant poisons toxicology
Toxicology
title Comparison of the inhibitory effect of T-2 toxin on bovine platelet function with that of other known platelet inhibitors
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