Figure 4. Evodia lepta extract ameliorates cholinergic system deficiency in scopolamine-treated mice. (A–C) The level of Ach and activities of AChE and ChAT. Evodia lepta 10 (10 mg/kg/d); Evodia lepta 20 (20 mg/kg/d). Data represent mean ± SD (n = 6 per group). ##P < 0.01, ###P < 0.001, vs. Control; *P < 0.05, **P < 0.01, ***P < 0.001, vs. SCOP.