Fig. 2From: Butylidenephthalide antagonizes cromakalim-induced systolic pressure reduction in conscious normotensive ratsTime course of effects of butylidenephthalide (Bdph) or its vehicle (control) on systolic pressure in conscious normotensive (a) and spontaneous hypertensive (b) rats. Bdph was injected at 0 min just after the last determination of baseline values. Each point represents mean ± SEM, and n is the number of rats. There is no significant difference either between test and control (Student’s unpaired t-test), or between before and after Bdph injection (Student’s paired t-test)Back to article page