Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (40): 5966-5972.doi: 10.3969/j.issn.2095-4344.2016.40.006

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Neuroprotective effects of sufentanil preconditioning on spinal cord injury in mouse models

Yu Yu-qin1, Hu Nian-chun1, Duan Ji-an1, Li Da-peng1, Liu Chang2   

  1. 1Department of Anesthesiology, Wuhan Central Hospital, Wuhan 430000, Hubei Province, China; 2Department of Anesthesiology, WISCO General Hospital, Wuhan 430000, Hubei Province, China
  • Revised:2016-08-23 Online:2016-09-30 Published:2016-09-30
  • Contact: Liu Chang, Attending physician, Department of Anesthesiology, WISCO General Hospital, Wuhan 430000, Hubei Province, China
  • About author:Yu Yu-qin, Attending physician, Department of Anesthesiology, Wuhan Central Hospital, Wuhan 430000, Hubei Province, China

Abstract:

BACKGROUND: Sufentanil exerts protective effects on tissues, but its roles in the repair of nervous system injury and the underlying mechanism are still unknown.

OBJECTIVE: To explore the protective effect of sufentanil preconditioning in the repair of spinal cord injuries and the underlying mechanism.
METHODS: Mouse models of spinal cord injuries were prepared through clipping spinal cord followed by intraperitoneal injection of 3 and 6 μg/kg sufentanil, respectively.
RESULTS AND CONCLUISON: (1) Western blotting, ELISA and TUNEL assays showed that 6 μg/kg sufentanil significantly down-regulated the protein expression levels of TLR4, nuclear factor-κBp65, cleaved-caspase 3, tumor necrosis factor-α and interlenkin-1β in the spinal cord of mice (P < 0.05); at the same time, the number of apoptotic neurons was significantly decreased (P < 0.05). (2) Furthermore, high-dose sufentanil preconditioning significantly ameliorated the recovery of limb function at 14 days after injury (P < 0.05). (3) These results administrate that the neuroprotection provided by 6 μg/kg sufentanil preconditioning for spinal cord injuries in mice maybe related to the TLR4/nuclear factor-κB signaling pathway inactivation.

 

Key words: Tissue Engineering, Spinal Cord Injuries, Models, Animal

CLC Number: