中国神经再生研究(英文版) ›› 2014, Vol. 9 ›› Issue (17): 1610-1615.doi: 10.4103/1673-5374.141787

• 原著:颅神经损伤修复保护与再生 • 上一篇    下一篇

慢性酒精中毒时海马神经元的损伤

  

  • 收稿日期:2014-05-10 出版日期:2014-09-16 发布日期:2014-09-16
  • 基金资助:

    国家自然科学基金项目(81471351),河南省教育厅科学技术研究重点项目(12A320013),河南省卫生科技创新型人才工程科技领军人才(3052),河南省精神病医院河南省精神病学重点实验室开放基金项目

Damage of hippocampal neurons in rats with chronic alcoholism

Ailin Du 1, 2, Hongbo Jiang 2, 3, Lei Xu 2, Na An 2, Hui Liu 2, 3, Yinsheng Li 2, Ruiling Zhang 1, 2, 4   

  1. 1 Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province, China
    2 Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang, Henan Province, China
    3 Department of Neurology, the Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province, China
    4 Henan Provincial Key Laboratory of Bio-psychiatry, Xinxiang, Henan Province, China
  • Received:2014-05-10 Online:2014-09-16 Published:2014-09-16
  • Contact: Yinsheng Li, M.D., Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang 453003, Henan Province, China, 13462256118@126.com. Ruiling Zhang, M.D., Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453003, Henan Province, China; Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang 453003, Henan Province, China; Henan Provincial Key Laboratory of Bio-psychiatry, Xinxiang 453003, Henan Province, China, zrlxx2fy@126.com.
  • Supported by:

    This work was supported by the National Natural Science Foundation of China, No. 81471351; Key Project of the Science and Technology Foundation of Henan Provincial Education Department of China, No. 12A320013; the Funds of Henan Province Health Technology Talents Innovative Project, No. 3052; and the Open Fund of Henan Provincial Mental Hospital, Henan Key Laboratory of Biological Psychiatry.

摘要:

慢性酒精中毒可以破坏细胞骨架,提高神经功能缺损程度,但对学习记忆相关的海马神经元会产生哪些影响呢?实验通过连续42d以6%酒精代替水饲养大鼠建立慢性酒精中毒大鼠模型,观察到慢性酒精中毒大鼠海马组织中内源性硫化氢含量和胱硫醚β合成酶活性增加,F-肌动蛋白的表达降低,海马神经元出现细胞核核膜结构模糊,线粒体出现水肿,线粒体嵴出现断裂等现象。推测慢性酒精中毒因其促进硫化氢/胱硫醚β合成酶系统合成,损伤线粒体,减少F-肌动蛋白的表达,可致学习记忆下降。

关键词: 神经再生, 慢性酒精中毒, 硫化氢, 胱硫醚β合成酶, 学习, 记忆, F-肌动蛋白, 线粒体, 海马, NFSC grant

Abstract:

Chronic alcoholism can damage the cytoskeleton and aggravate neurological deficits. However, the effect of chronic alcoholism on hippocampal neurons remains unclear. In this study, a model of chronic alcoholism was established in rats that were fed with 6% alcohol for 42 days. Endogenous hydrogen sulfide content and cystathionine-beta-synthase activity in the hippocampus of rats with chronic alcoholism were significantly increased, while F-actin expression was decreased. Hippocampal neurons in rats with chronic alcoholism appeared to have a fuzzy nuclear membrane, mitochondrial edema, and ruptured mitochondrial crista. These findings suggest that chronic alcoholism can cause learning and memory decline in rats, which may be associated with the hydrogen sulfide/cystathionine-beta-synthase system, mitochondrial damage and reduced expression of F-actin.

Key words: nerve regeneration, chronic alcoholism, hydrogen sulfide, cystathionine-beta-synthase, learning, memory, F-actin, mitochondria, hippocampus, NSFC grant, neural regeneration