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Triptolide attenuates cerebral ischemia and reperfusion injury in rats through the inhibition the nuclear factor kappa B signaling pathway

Authors Jin X, Ye F, Zhang J, Zhao Y, Zhou X, Wang Y

Received 2 February 2015

Accepted for publication 16 March 2015

Published 3 June 2015 Volume 2015:11 Pages 1395—1403


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Wai Kwong Tang

Xiao-Qing Jin,1,2 Fei Ye,1 Jun-Jian Zhang,1 Yan Zhao,2 Xian-Long Zhou2

Department of Neurology, 2Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China

Abstract: Inflammation plays critical roles in the acute progression of the pathology of ischemic injury. Previous studies have shown that triptolide interferes with a number of pro-inflammatory mechanisms. In this study, we investigated whether triptolide has protective effects during acute cerebral ischemia/reperfusion (I/R) injury. Male Sprague Dawley rats received triptolide or vehicle at the onset of reperfusion following middle cerebral artery occlusion. Twenty-four hours after reperfusion, we evaluated neurological injuries, the expression of pro-inflammatory markers, and NF-κB activation. I/R rats treated with triptolide showed significantly better neurological deficit scores, decreased neural apoptosis, and reduced cerebral infarct volume and brain edema, and triptolide treatment suppressed the activation of NF-κB following I/R injury. Furthermore, the expression levels of pro-inflammatory cytokines at both the mRNA and protein levels were significantly decreased in rats receiving triptolide. These results indicate that the neuroprotective effects of triptolide during acute cerebral I/R injury are possibly related to the inhibition of both the NF-κB signaling pathway and inflammation.

Keywords: ischemic stroke, inflammation, rat model, NF-κB pathway

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