Figure 7. Cumulative concentration-response curves to acetylcholine (ACh) in endothelium-intact renal arteries from spontaneously hypertensive (SHR) and Wistar-Kyoto (WKY) rats at week 12 (A) and week 20 (B). The dilation responses to ACh are reported as the percentage of contractile response induced by 1 µM phenylephrine (PE). Each point represents means±SE (n=6). *P<0.05 and **P<0.01 vs WKY (one-way ANOVA).
