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Mechanism of salvianolic acid B neuroprotection against ischemia/reperfusion induced cerebral injury.

Yong Fan,Qianping Luo,Jingjing Wei,Ruhui Lin,Lili Lin,Yongkun Li,Zhaorong Chen,Wei Lin,Qi Chen

Published 2018 in Brain Research

ABSTRACT

The purpose of this study was to evaluate the cerebral protection of salvianolic acid B (Sal B) against cerebral I/R injury and investigate the underlying mechanism. As shown by 2,3,5-Triphenyltetrazolium chloride (TTC) staining and magnetic resonance imaging (MRI) analyses, Sal B significantly reduced cerebral infarct size, and accompanied with improved neurobehavioral functions as indicated by the modified Bederson score and Longa five-point scale. Sal B decreased the production of reactive oxygen species (p < .05, n = 10). The data of Western blotting and reverse transcription quantitative real time polymerase chain reaction (qRT-PCR) analyses showed that the expression of GFAP, Iba1, IL-1β, IL-6, TNF-α and Cleaved-caspase 3 was significantly reduced by Sal B in I/R injured brain tissues as compared to corresponding controls (p < .05, n = 10). Over activation of astrocytes and microglia were inhibited by Sal B as shown by immunostaining of GFAP and Iba 1. These data suggest that Sal B has neural protective effects against I/R-induced cerebral injury and could be an effective candidate for further development of clinical therapy.

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