中国神经再生研究(英文版) ›› 2014, Vol. 9 ›› Issue (11): 1112-1116.doi: 10.4103/1673-5374.135312

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

褪黑素可减轻创伤性脑损伤组织的氧化损伤

  

  • 收稿日期:2014-06-03 出版日期:2014-06-12 发布日期:2014-06-12

Melatonin reduces traumatic brain injury-induced oxidative stress in the cerebral cortex and blood of rats

Nilgün Şenol 1, Mustafa Nazıroğlu 2   

  1. 1 Department of Neurosurgery, Faculty of Medicine, University of Suleyman Demirel, Isparta, Turkey
    2 Neuroscience Research Center, University of Suleyman Demirel, Isparta, Turkey
  • Received:2014-06-03 Online:2014-06-12 Published:2014-06-12
  • Contact: Mustafa Naziro?lu, Director of Neuroscience Research Center, University of Suleyman Demirel, Isparta, Turkey, mustafanaziroglu@sdu.edu.tr.

摘要:

创伤性脑损伤可引起伴随活性氧及其介导的脂质过氧化水平升高的创伤后神经退行性变。褪黑素作为一种非酵素抗氧化剂和神经保护剂,可明显减轻缺血再灌注损伤后氧化应激损伤和神经元兴奋毒性。由此,我们假设褪黑素可通过提高创伤性脑损伤后血液和脑组织中抗氧化剂水平,减轻氧化损伤来设计此实验。结果表明,创伤性脑损伤后,大脑皮质β-胡萝卜素、维生素C、维生素E和谷胱甘肽含量和红细胞谷胱甘肽,血浆维生素C水平明显下降;褪黑素干预后,这些抗氧化剂水平(含量)明显升高。说明褪黑素通过抑制氧自由基,提高抗氧化剂水平,对创伤性脑损伤组织可以起到神经保护作用。

关键词: 神经再生, 褪黑素, 创伤性脑损伤, 抗氧化剂, 氧化应激, 维生素E, 维生素C, 大脑皮质, 大脑

Abstract:

Free radicals induced by traumatic brain injury have deleterious effects on the function and antioxidant vitamin levels of several organ systems including the brain. Melatonin possesses antioxidant effect on the brain by maintaining antioxidant enzyme and vitamin levels. We investigated the effects of melatonin on antioxidant ability in the cerebral cortex and blood of traumatic brain injury rats. Results showed that the cerebral cortex  β-carotene, vitamin C, vitamin E, reduced glutathione, and erythrocyte reduced glutathione levels, and plasma vitamin C level were decreased by traumatic brain injury whereas they were increased following melatonin treatment. In conclusion, melatonin seems to have protective effects on traumatic brain injury-induced cerebral cortex and blood toxicity by inhibiting free radical formation and supporting antioxidant vitamin redox system.

Key words: nerve regeneration, melatonin, traumatic brain injury, antioxidant, oxidative stress, vitamin E, vitamin C, glutathione, brain, neural regeneration