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The expression and role of interleutin-1β converting enzyme(ICE)on neuron injury following sepsis in rat hippocampus
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF EMERGENCY MEDICINE
- Issue:
- 3
- DOI:
- 10.3760/j.issn:1671-0282.2008.03.006
- Key Word:
- 脓毒症;白细胞介素-1β转化酶;白细胞介素-1β;ICE抑制剂
Abstract： 目的 探讨白细胞介素-1β转化酶在腹腔感染脓毒症致神经元损伤中的机制.方法 建立Wistar大鼠腹腔感染脓毒症模型,研究脓毒症后不同时间内海马组织ICE的活性,IL-1β含量变化及海马CA1区神经元计数的变化,同时观察用Ac-YVAD-FMK治疗后对上述指标的影响.结果 随着发生脓毒症时间的延长,脑海马组织中ICE活性和IL--1β含量显著升高(P＜0.05和P＜0.01),海马CA1区神经元计数显著降低(P＜0.05和P＜0.01).使用Ac-YVAD-FMK治疗后上述各指标的异常变化明显减轻,与模型组比差异具有统计学意义(P＜0.05和P＜0.01).结论 脓毒症后ICE主要通过炎症机制介导神经元的损伤,Ac-YVAD-FMK对脓毒症后神经元的损伤具有保护作用.
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