Figure 3.
Role of TRPV4 channels in agonist-induced vasodilation in vitro. A, Acetylcholine-induced vasodilation in mesenteric arteries of WT mice. Arteries were preincubated with in the absence and presence of L-NAME (100 µmol/L) or L-NAME plus indomethacin (10 µmol/L), and precontracted with U46619 or high K+ (60 mmol/L). * P<0.05 vs. control (n=5–14 rings from 3–5 mice). B, Acetylcholine-induced vasodilation in mesenteric arteries of WT and TRPV4−/− (KO) mice in the absence and presence of L-NAME. * P<0.05 vs. WT control; # P<0.05 vs. KO control; n=10–14 rings from 6 mice. C, Endothelium-independent vasodilation to papaverine in mesenteric arteries of WT and TRPV4−/− mice (n=4 rings from 4 mice).
