Thromboxane A2,: (A) Formed by platelets, (B) Formed from PGG,IPGR, (C) Prothrombotic, (D) All
Answer is D. Ans. is 'a' i.e., Formed by platelets; 'b' i.e., Formed from PGG2/PGH2 ; 'c' i.e., Prothrombotic Thromboxane A2 (TXA21 o TXA, is synthesized by platelets from arachidonic acid PGG2 and PGH2 intermediate through cycloxygenase pathway. o It is a potent inducer of platelets aggregation --> prothrombotic activity. o It is a vasoconstrictor.