Neuroprotective effects of Zhenzhu Tongluo Pills on the cerebral ischemia reperfusion injury in rats / 国际中医中药杂志

ABSTRACT

Objective:To explore the protective effects of Zhenzhu Tongluo Pills on cerebral ischemia reperfusion injury in rats.Methods:Totally 15 healthy SD rats were randomly divided into sham-operation group, model group and TCM group according to random number table method, with 5 rats in each group. Except for the sham-operation group, cerebral ischemia models in the other two groups were induced by temporary middle cerebral artery occlusion. After the establishment of ischemia models, the TCM group was administered Zhenzhu Tongluo Pills solutions (1 ml/100 g) intragastrically at a dose of 0.5 g/(kg·d), and the sham-operation group and model group were treated with normal saline, for 14 consecutive days. Neurological deficit score was used to evaluate the degree of neurological deficit in cerebral ischemia rats. TTC staining were used for determining the infarct weights. The nerve cell damage was observed using HE staining method. Immunohistochemistry staining was used to observe the expression levels of GFAP, Nestin, and NeuN.Results:Compared with that at the 3 hours after reperfusion, the Bederson score in the TCM group decreased at the 30 minutes after the last administration ( P<0.05); compared with the model group, the infarction ratio of rats in the TCM group decreased ( P<0.05); the NeuN staining of neurons around the ischemic lesion in the model group rats was light, while Nestin and GFAP staining were deep; the Nestin and GFAP staining of neurons in the TCM group was light, while NeuN staining was deeper. Conclusion:Zhenzhu Tongluo Pills can improve the symptom of neurological deficits, reduce the volume of infarction, and protect neurons from injury in rats with cerebral ischemia.