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ID:37174298
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页数:5页
时间:2019-05-21
《长期运动对balb/c小鼠恐惧记忆形成及海马区cd47表达的影响》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、巨置蓄蓄墨露蓄昌瑶暑圈2012~第27卷第s期长期运动对BALB/c小鼠恐惧记忆形成及海马区CD47表达的影响施翔1,李亚2摘要:目的:验证长期中度跑步运动是否能够改善小鼠学习记忆行为的表现,且是否与小鼠海马区CD47高表达有关。方法:选取4O只l1周龄的雄性BALB/c小鼠,随机将其分到运动组和对照组,并做2个重复实验。第i重复实验,运动组的动物接受不同时问(2、3、4周)的长期跑步运动训练,并且在最后一次运动训练后0.24h处死。参照SRERE的方法测定柠檬酸合酶活性,利用皮质酮ELISA试剂盒来测定小鼠血清中肾上腺皮质酮的浓度,利
2、用WESTERNBOLT测定CD47蛋白表达的变化。第2重复实验,通过避暗实验观察大鼠恐惧学习能力的行为表现。结果:经过4周长期运动训练后,运动组柠檬酸合酶活性增加,避暗实验的行为表现获得改善;在最后一次运动后0h雄性BALB/c小鼠海马回中CD47蛋白质表达增加,且CD47蛋白质表达量水平可维持超过24h。结论:长期运动可加强雄性BALB/e小鼠恐惧记忆的形成,能够改善恐惧学习记忆能力;同时能刺激海马区CD47的表达稳定上升,且具有运动时间的依赖性。关键词:运动;BALB/e小鼠;记忆;CD47中图分类号:G804.5文献标志码:A文
3、章编号:1005—0000(2012)05—399—05EfectsofLong'termExerciseTrainingontheLearningandMemoryBehavioralPerformanceoftheBALB/CmiceandExpressionofCD47inHippocampi曼旦!i垦g:(1.Dept.ofPE,NanjingMedicalUniversity,Nanjing210029,China;2.Dept.ofPE,SanjiangUniversity,Nanjing210000,China)Abstr
4、act:Objective:Toexaminewhetherthelearningandmemo~behavioralperformanceoftheBALB/cmicecouldbeimprovedbylong—termandmod—cratetreadmillexercisetrainingandrelatedwiththeexpressionofCD47.Method:Tworepeatedexperimentswereconducted.First,40maleBALB/emice(11weeks)wererandomlydiv
5、idedintoexerciscgroupandcontrolgroup.Intheexercisegroup,theBALB/cmicereceivedthe2,3and4weekstreadmillexercisetraining,andthemiceweresacrificedatthelasttrainingtimefordetectingthecitratesynthase(CS)accordingtotheSrereScriterion,thecorti—costeroneintheseraofBALB/cmicebycor
6、ticosteroneELISAkit,andtheexpressionofCD47byWesternblot.Second,thelearningandmemo~behav-ioralperformanceofthemicewereobservedbythestepthroughtest.Results:afteralong-termandmoderatetreadmillexercisetraining,theresultsofthisexperimentwerethatthelevelofCSintheexercisegroupw
7、ashigherthanthecontrolgroup.Thelearningandmemo~behavioralperformanceofmicewaSbetterintheexercisegroup.Conclusion:TheexpressionofCD47inhippocampiisescalatedintheexercisegroupcomparedwiththecontrolgroupatthe0hrafterthelastexercisetrainingandthishighlevelcouldbedetectedinth
8、enext24hr.Basedontheresults,wecanconcludethatlong—termandmoder-atetreadmillexercisetrainingcanenhanceme
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