Urinary thromboxane B2

Thromboxane (TXA2) is a kind of prostaglandin. It is produced by platelets and has platelet aggregation and vasoconstriction effects. It is opposite to the effect of prostacyclin. The two are dynamically balanced to maintain vasomotor and platelet aggregation. TXA2 biological half-life is only 30s, and it is quickly converted into inactive thromboxane B2 (TXB2).

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