首页|期刊导航|中国神经再生研究(英文版)|Expression of Clock genes in the pineal glands of newborn rats with hypoxic-ischemic encephalopathy
中国神经再生研究(英文版)2012,Vol.7Issue(28):2221-2226,6.DOI:10.3969/j.issn.1673-5374.2012.028.008
Expression of Clock genes in the pineal glands of newborn rats with hypoxic-ischemic encephalopathy
Expression of Clock genes in the pineal glands of newborn rats with hypoxic-ischemic encephalopathy
摘要
Abstract
Clock genes are involved in circadian rhythm regulation,and surviving newborns with hypoxic-ischemic encephalopathy may present with sleep-wake cycle reversal.This study aimed to determine the expression of the clock genes Clock and Bmall,in the pineal gland of rats with hypoxic-ischemic brain damage.Results showed that levels of Clock mRNA were not significantly changed within 48 hours after cerebral hypoxia and ischemia.Expression levels of CLOCK and BMAL1 protein were significantly higher after 48 hours.The levels of Bmall mRNA reached a peak at 36 hours,but were significantly reduced at 48 hours.Experimental findings indicate that Clock and Bmall genes were indeed expressed in the pineal glands of neonatal rats.At the initial stage (within 36 hours) of hypoxic-ischemic brain damage,only slight changes in the expression levels of these two genes were detected,followed by significant changes at 36 48 hours.These changes may be associated with circadian rhythm disorder induced by hypoxic-ischemic brain damage.关键词
brain hypoxia/ cerebral ischemia/ neonatal rats/ pineal gland/ Clock/ Bmal1/ mRNA/ protein/ brain/ neural regenerationKey words
brain hypoxia/ cerebral ischemia/ neonatal rats/ pineal gland/ Clock/ Bmal1/ mRNA/ protein/ brain/ neural regeneration引用本文复制引用
Bin Sun,Xing Feng,Xin Ding,Li Bao,Yongfu Li,Jun He,Meifang Jin..Expression of Clock genes in the pineal glands of newborn rats with hypoxic-ischemic encephalopathy[J].中国神经再生研究(英文版),2012,7(28):2221-2226,6.基金项目
This study was supported by grants from the Foundation for Advancing Medical Sciences of the Health Department,Jiangsu Province,No.Z200519,and the Project for Social Development of Suzhou,No.SSZ0230. ()