Recent Advance in Pharmacological Studies of Radix Astragali

The principal constituents of Radix Astragali include Radix Astragali soap glucoside,Radix Astragali polysaeeharide,amino-butyric acid,calcium and trace elements (selenium,manganese,iron,zinc,copper).Radix astragali has the function of protecting heart and kidney,two-ways regulating blood sugar and the blood pressure,resisting tumor,hypoxia,senile and oxidation,and enhancing immunity.This article reviewed pharmaceutical effects of Radix Astragali and its preparation of recent studies. Key words: Radix Astragali:Pharmaceutical function; Researching advances