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Abstract Title:

The neuroprotective mechanism of puerarin treatment of acute spinal cord injury in rats.

Abstract Source:

Neurosci Lett. 2013 May 24 ;543:64-8. Epub 2013 Apr 6. PMID: 23570727

Abstract Author(s):

Feng Tian, Li-Hui Xu, Wei Zhao, Li-Jie Tian, Xiang-Lu Ji

Article Affiliation:

Feng Tian

Abstract:

Puerarin extracted from radix puraeriae is shown to exert a variety of pharmacological effects including neuroprotective properties. However, its mechanisms of action are needed to further explore. The study was designed to investigate the mechanism of puerarin treatment of acute spinal cord ischemia-reperfusion injury (SCI/RI) in rats. SCI/RI was conducted in male Sprague-Dawley rats, and 50mg/kg of puerarin was injected intraperitoneally at 1, 2, 4 and 6h after reperfusion, followed by the same dose of injection every 24h for 2 days. Glutamate level, metabotropic glutamate receptors (mGluR) mRNA expression, and apoptosis indices were examined. Neurologic function was assessed at 48 h of reperfusion. SCI/RI caused extensive motor deficit associated with an elevation of glutamate level and mGluRs-1 mRNA expression, while puerarin administration improved motor deficit, and decreased glutamate level and inhibited mGluRs-1 mRNA expression. The present study demonstrated that administration of puerarin reduced the spinal ischemia/reperfusion injury, and suggested that the neuroprotective mechanism of puerarin involved a decrease in glutamate release and mGluRs-1 mRNA expression.

Study Type : Animal Study

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Sayer Ji
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