Abstract

To study the protective effect of total flavonoids of Astragalus (TFA) on ischemia/reperfusion injury. Change of nitrite (NO2-), the terminal product of nitric oxide (NO) metabolism, and the effect of TFA and chloroquine (a phospholipase A2 inhibitor) on it were observed with hemorrhagic shock/reperfusion injury (S/R) rabbit model. Plasma NO2- content was positively correlated with blood pH and total carbon dioxide content lowering. TFA and chloroquine could block the decrease of NO in certain degree and might have some effect on maintaining acid-base balance of body. TFA has protective effect on ischemia/reperfusion injury.

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