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作者

ZHU Chao DU Ning-ning ZHOU Yan-meng WANG Hao HOU Xue-qin ZHANG Fang-fang TAN Rui GAO Shan JIA Xiao-li WANG Wei 赵晓民 ZHANG Han-ting

作者单位

Institute of Pharmacology,Taishan Medical University,Taian,271016,China

刊名

神经药理学报

年份

2018

卷号

第8卷

期号

第4期

页码

79

ISSN

2095-1396

关键词

blood pressure VARIABILITY sinoaortic DENERVATION MEMORY CHOLINERGIC α7 NICOTINIC ACETYLCHOLINE receptor

分类号

R74

摘要

Background and Objective:Increased blood pressure variability(BPV),which has been considered to cause brain damage,can be induced by sinoaortic denervation(SAD)in rats.This study was designed to test the hypothesis that increased BPV impairs learning and memory in rats with SAD.Methods:SAD was performed in male Sprague-Dawley rats.Passive avoidance trial was used to evaluate learning and memory ability.Results:Compared with shamoperated(Sham)group,there was no significant difference in the laten...更多

Background and Objective:Increased blood pressure variability(BPV),which has been considered to cause brain damage,can be induced by sinoaortic denervation(SAD)in rats.This study was designed to test the hypothesis that increased BPV impairs learning and memory in rats with SAD.Methods:SAD was performed in male Sprague-Dawley rats.Passive avoidance trial was used to evaluate learning and memory ability.Results:Compared with shamoperated(Sham)group,there was no significant difference in the latency of passive avoidance in adaption trial.The latency of avoiding darkness in retention trial in SAD group was significantly lower than that in Sham group both 2 and 16 weeks after SAD(P<0.05,P<0.01).Westernblot assay revealed that all the expression of choline acetyltransferase,vesicular acetylcholine transporter andα7 nicotinic acetylcholine receptor decreaed in both cerebral cortex(P<0.05)and hippocampus(P<0.05)16 weeks after SAD(P<0.05),while only level ofα7 nicotinic acetylcholine receptor was reduced in hippocampus 2 weeks after SAD(P<0.05).Conclusion:Increasd BPV reduces memory ability in SAD rats,potentially through cholinergic pathway.收起

学科

【教育部学科】医学

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