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  • Title: [Molecular mechanism of protective effect of puerarin solid lipid nanoparticle on cerebral ischemia-reperfusion injury in gerbils].
    Author: Zhu L, Luo CF, Yuan M, Chen MS, Ji H.
    Journal: Zhong Yao Cai; 2010 Dec; 33(12):1900-4. PubMed ID: 21548369.
    Abstract:
    OBJECTIVE: To investigate the effects of puerarin solid lipid nanoparticle on fore brain ischemic-reperfusion injury in gerbils and it's mechanisms. METHODS: Gerbils were randomly divided into 4 groups: sham group, cerebral ischemia-reperfusion injury group, puerarin solid lipid nanoparticle group and puerarin injection control group. The gerbils' cerebral ischemia-reperfusion injury model was constructed with ligating bilater carotids method. The histomorphology and Bcl-2, Caspase-3 and HSP70 expressions were detected by HE dyeing and immunohistochemical method. RESULTS: After 24 h ischemia and reperfusion in gerbils, the level of Bcl-2 and HSP70 expressions in puerarin solid lipid nanoparticle group increased (P < 0.01) compared with the ischemic-reperfusion model group, and the level of Caspase-3 expression decreased (P < 0.01). The same results was consistent in puerarin injection control group. CONCLUSIONS: Puerarin solid lipid nanoparticle group can protect the cerebral ischemia-reperfusion injury in gerbils, which may be related to the upregulation of Bcl-2 and HSP70 expression and downregulation of Caspase-3 expression.
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