The cerebral ischemia rabbit model was made by using the occlusion of four vessels. The results showed that TXB2 and cAMP contents in brain tissues and the latter in plasma markedly increased (P < 0.05, P < 0.01), the 6-keto-PGF1 alpha in brain tissues significantly lowered (P < 0.05) in ischemia formed 30 minutes and 45 minutes after reperfusion. After intravenous injection of Astragalus membranaceus (AM) extracts (3.3 g/kg), Huoxuefang (HXFO and Yiqi Houxue Fang (YQHXF) consisted of AM and HXF before ischemia, the marked increase of TXB2 contents after reperfusion was inhibited (P < 0.05) an...
