With regard to eicosanoids
A. main action of LTB4 is to increase permeability.
B. PGE2 causes intense vasoconstriction.
C. permeability increase caused by LTD4 restricted to venules.
D. LTC4, LTD4, LTE4, are important vasodilators.
E. cyclo-oxygenase is the predominant enzyme in neutrophils
Isha@2663 Answered question August 19, 2024
A. False: LTB4 primarily attracts leukocytes, not increases permeability. B. False: PGE2 causes vasodilation, not intense vasoconstriction. C. True: LTD4 increases permeability mainly in venules. D. False: LTC4, LTD4, LTE4 are not vasodilators; they increase permeability and cause bronchoconstriction. E. False: Cyclooxygenase is not the predominant enzyme in neutrophils; lipoxygenase is.
Isha@2663 Answered question August 19, 2024