The effect of Shenmai injection on purine content in rat's cerebral tissue / 中国中西医结合急救杂志

ABSTRACT

Objective To investigate the effect of Shenmai injection on purine content in rat cerebral cortex in order to provide a theoretical basis concerning its brain protective mechanism. Methods Sixteen Sprague-Dawley (SD) rats were randomly divided into two groupsnormal saline control group and Shenmai injection group, with 8 rats in each group. Shenmai injection 15 mL/kg was injected intraperitoneally into the rats in Shenmai injection group, while in the normal saline group, an equal volume of normal saline was intraperitoneally injected. After the injection for 24 hours, the rats were sacrificed, and the cerebral cortex was removed on ice, homogenized and its supernatant was extracted;then high performance liquid chromatography (HPLC) was used to detect adenosine triphosphate (ATP), adenosine diphosphate (ADP), adenosine monophosphate (AMP), adenosine and inosine contents in the supernatant of cerebral cortex. Results Compared with normal saline control group, ATP, ADP, AMP, adenosine and creatinine content in the cerebral cortex of Shenmai injection group were significantly higher, the differences being statistically significant [ATP (ng/L) 31.62±5.12 vs. 20.25±4.53, ADP (ng/L) 37.04±6.72 vs. 25.12±7.35, AMP (ng/L) 87.82±20.37 vs. 33.23±10.34, adenosine (ng/L) 2.82±0.15 vs. 1.12±0.61, creatinine (ng/L) 11.72±1.05 vs. 6.05±2.55, P < 0.05 or P<0.01]. Conclusion Shenmai injection can elevate ATP, ADP, AMP, adenosine and creatinine contents in the cerebral cortex of rats, possibly that is the theoretical basis for brain protective mechanism of Shenmai injection.