Abstract Title:

Curcumin promotes nerve regeneration and functional recovery after sciatic nerve crush injury in diabetic rats.

Abstract Source:

Neurosci Lett. 2015 Nov 10 ;610:139-143. Epub 2015 Nov 10. PMID: 26552010

Abstract Author(s):

Junxiong Ma, Hailong Yu, Jun Liu, Yu Chen, Qi Wang, Liangbi Xiang

Article Affiliation:

Junxiong Ma


Curcumin is capable of promoting peripheral nerve regeneration in normal condition. However, it is unclear whether its beneficial effect on nerve regeneration still exists under diabetic mellitus. The present study was designed to investigate such a possibility. Diabetes in rats was developed by a single dose of streptozotocin at 50mg/kg. Immediately after nerve crush injury, the diabetic rats were intraperitoneally administrated daily for 4 weeks with curcumin (50mg/kg, 100mg/kg and 300mg/kg), or normal saline, respectively. The axonal regeneration was investigated by morphometric analysis and retrograde labeling. The functional recovery was evaluated by electrophysiological studies and behavioral analysis. Axonal regeneration and functional recovery was significantly enhanced by curcumin, which were significantly better than those in vehicle saline group. In addition, high doses of curcumin (100mg/kg and 300mg/kg) achieved better axonal regeneration and functional recovery than low dose (50mg/kg). In conclusion, curcumin is capable of promoting nerve regeneration after sciatic nerve crush injury in diabetes mellitus, highlighting its therapeutic values as a neuroprotective agent for peripheral nerve injury repair in diabetes mellitus.

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