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1、620解放軍醫(yī)學(xué)院學(xué)報(bào)AcadJChinPLAMedSchJun2014,35(6)http://jyjxxyxb.paperopen.com慢性睡眠限制對(duì)幼鼠空間學(xué)習(xí)記憶能力的影響劉艷,吳衛(wèi)平解放軍總醫(yī)院南樓神經(jīng)內(nèi)科,北京100853摘要:目的探討慢性睡眠限制對(duì)幼鼠空間學(xué)習(xí)記憶能力的影響。方法將24只1月齡SD雄性鼠隨機(jī)分為慢性睡眠限制組、睡眠剝奪組和對(duì)照組,每組8只。對(duì)慢性睡眠限制組幼鼠進(jìn)行連續(xù)5d每天6h的睡眠限制,采用“溫和處理法”;對(duì)睡眠剝奪組幼鼠進(jìn)行連續(xù)5d每天6h的睡眠剝奪,采用“多平臺(tái)水環(huán)境法”。分別在睡眠干
2、預(yù)前和干預(yù)第1、3、5天應(yīng)用Morris水迷宮方法檢測(cè)幼鼠的空間學(xué)習(xí)記憶能力。結(jié)果水迷宮實(shí)驗(yàn)顯示睡眠限制組、睡眠剝奪組幼鼠在睡眠干預(yù)的第3天、第5天,到達(dá)平臺(tái)的平均潛伏期、探索路程較對(duì)照組延長(zhǎng)(尸<0.05),其中睡眠剝奪組在第5天的影響最顯著(P<0.01);在睡眠干預(yù)的第5天,睡眠限制組、睡眠剝奪組幼鼠之間出現(xiàn)了差別,睡眠剝奪組幼鼠的潛伏期、探索路程較睡眠限制組延長(zhǎng)<0.05);而在空間探測(cè)實(shí)驗(yàn)中,3組幼鼠在平臺(tái)所在象限時(shí)間的百分比、穿環(huán)次數(shù)有顯著差異:睡眠剝奪組較睡眠限制組減少<0.05),較對(duì)照組顯著減少<0.O1)
3、;睡眠限制組較對(duì)照組減少<0.05)。結(jié)論連續(xù)5d、每天6h的慢性睡眠限制可減弱幼鼠的空間學(xué)習(xí)記憶能力,但其影響程度小于同等時(shí)間的睡眠剝奪。關(guān)鍵詞:慢性睡眠限制;睡眠剝奪;學(xué)習(xí)記憶;幼鼠中圖分類號(hào):R749.71文獻(xiàn)標(biāo)志碼:A文章編號(hào):2095—5227@O14)06—0620—03DOl:10.3969~.issn.2095—5227.2014.06.029網(wǎng)絡(luò)出版時(shí)間:2014—03—0716:41網(wǎng)絡(luò)出版地址:http://www.cnki.net/KCMS/detail/11.3275.R.20140307.1641
4、.012.htmlEffectofchronicsleeprestrictiononspatiallearningandmemoryininfantileratsLIUYan.WUWei—pingDepartmentofNeurologyinSouthBuilding,ChinesePLAGeneralHospital,Beijing100853,ChinaCorrespondingauthor:WUWei—ping.Email:wuwp@vip.sina.comAbstract:0bjectiveTostudytheeff
5、ectofchronicsleeprestriction(CSR)onspatiallearningandmemoryabilityininfantilerats.MethodsTwenty—fourmaleinfantileSDratsattheage1monthwererandomlydividedintoCSRgroup,sleepdeprivation(SD)group,andcontrolgroup(8ineachgroup).RatsinCSRgroupandSDgroupunderwentsleeprestri
6、ctionbygentlehandingandmultiplewaterplatformtechniques,respectively,6hadayfor5days.TheirspatiallearningandmemoryabilitywereassessedbyMoriswatermazetestbeforeand1,3,5daysaftersleepintervention.ResultsMorriswatermazetestshowedthattheaveragelatentperiodanddistancewere
7、significantlylongerinCSRgroupandSDgroupthanincontrolgroupondays3and5aftersleepintervention(P<0.05),especiallyinSDgroupthanincontrolgrouponday5aftersleepintervention<0.01).ThelatentperiodanddistanceweresignificantlylongerinSDgroupthaninCSRgrouponday5aftersleepinterv
8、ention<0.05).Spatialprobetestshowedthatthetimeintargetquadrant(TrQ)andthenumberofplatformcrossings(NPC)weresignificantlylowerinSDgroupthaninCSRgr