Which of the following relaxes mesangial cells in the glomerulus: (A) Dopamine, (B) Histamine, (C) AT III, (D) PDGF
Answer is A. Substances causing relaxation of mesangial cells
-        ANP
-        Dopamine
-        PGE2
-        cAMP
Substances causing contraction of mesangial cells
-        Endothelin
-        Vasopressin
-        PGF2
-        Angiotensin II
-        Norepinephrine
-        PAF
-        PDGF
-        Thromboxane A2
-        Leukotrienes C4, D4
-        Histamine