李芳,何凤慈.TRH对大鼠脊髓损伤后SCBF和SEP的影响[J].中国脊柱脊髓杂志,1992,(1):.
TRH对大鼠脊髓损伤后SCBF和SEP的影响
Effects of TRH on spinal cord blood flow and spinal evoked potential in rats with spinal cord injury
  
DOI:
中文关键词:  TRH,脊髓损伤,脊髓血流量,脊髓诱发电位
英文关键词:Thyrotropin-releasing hormone,Spinal cord injury,Spinal cord blood flow,: Spinal evoked potential
基金项目:
李芳  何凤慈
第三军医大学野战外科研究所三室 (李芳,何凤慈,龙在云)
,第三军医大学野战外科研究所三室(王禾)
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中文摘要:
  脊髓损伤(SCI)后内源性阿片肽释放,并参与脊髓的继发损伤机制。TRH可阻断阿片肽的自主神经效应,而不影响痛觉。本实验探讨大剂量TRH(2mg/kg/h)治疗对大鼠脊髓打击伤(Allens法10gx5cm)后脊髓血流量(SCBF)和脊髓诱发电位(SEP)的影响。脊髓损伤后1h,SCBF开始显著下降,持续至伤后24h,SEP峰潜时呈进行性延长趋势;伤后即刻静脉注射TRH(2mg/kg/h,共5次),可使伤后即刻和24h的SCBF显著升高,并使伤后SCBF下降时间延迟3h,同时SEP峰潜时有不同程度改善。结果表明,TRH对受伤脊髓早期有一定的防治作用,并具有一定的后发效应;同时也可促进脊髓的神经传导功能。本文亦对TRH治疗SCI的病理生物学机制进行了讨论。
英文摘要:
  The endogenous opioids are released after spinal cord injury(SCI), and contributed to the secondary pathophysiologic mechanism. Thyrotropin-releasing hormone(TRH)is a partial physiologic opiate antagonist that reverses the autonomic effect of opioids wit
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