Which of the following is not a vasodilator?: (A) PGI2, (B) Lipoxin, (C) Leukotriene C4, (D) PGE2
Answer is C. Thromboxane A2, Leukotrienes C4, D4, E4 are vasoconstrictors. PGI2, PGE1, PGE2, PGD2 and lipoxins are vasodilators.Ref: Robbins Basic Pathology, 7th Edition, Page 48.