187208.fig.004a
(a)
187208.fig.004b
(b)
Figure 4: Relaxation responses of aortic rings of normal and preeclamptic rats (L-NAME treated). (a) Vasorelaxant effect of acetylcholine on phenylephrine-induced contraction; (b) vasorelaxant effect of diazoxide on potassium (30 mM)-induced contraction. Symbols represent means ± SEM of 8–10 experiments. For statistical analysis, see Table 1.