True about nitric oxide
A. Free radicalB. Vasodilator
C. Oxidizing agent
D. Catalyst
E. Platelet aggregator
Ans.
A. Free radical ; (B) Vasodilator ; (C) Oxidizing agent ; (D) Catalyst
• Nitric oxide is a gas synthesized by endothelial cells previously known as endothelium derived
• Nitric oxide is a gas synthesized by endothelial cells previously known as endothelium derived
relaxing
Factor (EDRF), causes vasodilatation. It stimulates guanyl cyclase.
-
NO has very short half life (3-4
sec.) as in tissues it reacts with oxygen and superoxide
producing peroxynitrite which decomposes to form
highly reactive OH radical