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Effect of gamma-aminobutyric acid B receptor on nitric oxide/nitric oxide synthase system during recurrent febrile seizures
Author(s): 
Pages: 132-134
Year: Issue:  2
Journal: JOURNAL OF PEKING UNIVERSITY(HEALTH SCIENCES)

Keyword:  惊厥发热性γ-氨基丁酸受体GABA-A一氧化氮一氧化氮合酶;
Abstract: 目的:探讨γ-氨基丁酸B受体(γ-aminobutyric acid B receptor,GABABR)对热性惊厥(febrile seizure,FS)大鼠一氧化氮(nitric oxide,NO)/一氧化氮合酶(nitric oxide synthase,NOS)体系表达的影响.方法:将21 d龄SD大鼠随机分为对照组、FS组、FS+巴氯芬(baclofen)组和FS+法克罗芬(phaclofen)组.采用热水浴诱导大鼠FS,隔日诱导1次,共10次.采用分光光度计法测定大鼠血浆中NO含量;用原位杂交方法观察神经元型一氧化氮合酶(neuronal nitric oxide synthase,nNOS)mRNA表达情况;用免疫组化方法观察nNOS蛋白表达情况.结果:FS+baclofen组NO含量低于FS组[(19.02±9.31)μmol/L比(40.03±9.12)μmol/L],同时nNOS蛋白和mRNA表达也较FS组减弱;而FS+phaclofen组NO含量高于FS组[(66.46±8.15)μmol/L比(40.03±9.12)μmol/L],同时nNOS蛋白和mRNA表达也较FS组增强.结论:反复热性惊厥过程中,GABABR的改变可影响NO/NOS体系的表达.
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