Effects of ginkgolide K on platelet aggregation activity and neuroprotection

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
Xiao-Qian TaoWei Xiao

Abstract

To investigate the antagonism effects of different concentrations of ginkgolide K(GK) on platelet activating factor (PAF)-induced platelet aggregation and neuroprotective effect on cells and animal models of ischemia-reperfusion injury. GK-containing serum in rabbit was prepared, and the effects of GK-containing serum on PAF-induced platelet aggregation was observed by platelet aggregation assay. The effect of different concentrations of GK on apoptosis of SH-SY5Y cells injured by oxygen-glucose deprivation/reoxygenation (OGD/R) was investigated by Hoechst 33342/PI double staining in OGD/R cell model. The focal cerebral ischemia-reperfusion model (I/R)was established in rats to detect the effects of GK on neurobehavioral scores and cerebral infarction volume. GK could inhibit PAF-induced platelet aggregation, reverse the apoptosis induced by OGD/R injury and improve the neurobehavioral score and cerebral infarction volume after cerebral ischemia-reperfusion injury in rats in a dose-dependent manner. GK can inhibit PAF-induced platelet aggregation and improve nerve injury after cerebral ischemia-reperfusion.

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