Objective: To probe the effects and mechanisms of astragaloside IV combined with the active components from Panax notoginseng on apoptosis of nerve cells through endoplasmic reticulum stress (ERS) after cerebral ischemia-reperfusion (I/R) in mice. Methods: C57BL/6 mice were randomly divided into Sham, model, astragaloside IV (AST IV), ginsenoside Rg1 (Rg1), ginsenoside Rb1(Rb1), notoginsenoside R1 (R1), four active components combination, AST IV + Rg1, AST IV + Rb1, AST IV + R1 and Edaravone group, pretreated for 3 d. After 1 h of the last admi...