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1、國(guó)經(jīng)精神疾病雜志2014年第4O卷第2期87論著丙酮酸鹽對(duì)阿爾茨海默病大鼠學(xué)習(xí)記憶的影響☆王曉楠”胡雪君楊吻王斯琪【摘要】目的研究丙酮酸鹽對(duì)阿爾茨海默病(Alzheimer’sdisease,AD)模型大鼠學(xué)習(xí)記憶的影響并探討其與海馬神經(jīng)細(xì)胞死亡的關(guān)系。方法將36只wistar大鼠隨機(jī)分為空白對(duì)照組、AD模型組和丙酮酸鹽治療組,根據(jù)實(shí)驗(yàn)要求給藥處理6周,同時(shí)觀察各組大鼠一般情況,Morris水迷宮實(shí)驗(yàn)檢測(cè)大鼠學(xué)習(xí)記憶能力,蘇木精一伊紅(hematoxylinandeosin,HE)染色檢測(cè)海馬神經(jīng)細(xì)胞死亡,利用2,7'-dich1
2、omdihvdr0nuoresceindiacetate(H:DCF—DA)來(lái)檢測(cè)海馬CA1區(qū)內(nèi)活性氧(reactiveoxygenspecies,ROS)聚集情況。結(jié)果丙酮酸鹽治療組與AD模型組比較,一般情況均明顯改善,逃避潛伏期均明顯縮短(41.37+6.24,31.67~7.26,24.26~7.16,20.45~5.72,19.36~5.89,均P<0.05);原平臺(tái)象限活動(dòng)時(shí)間明顯增加(50.36~7.46S,P<0.05),穿越原平臺(tái)次數(shù)明顯增多(3.98~1.23次/2min,P<0.05),海馬CA1區(qū)錐體神經(jīng)細(xì)胞
3、死亡顯著減少(尸<0.05),海馬神經(jīng)細(xì)胞內(nèi)ROS的水平也顯著降低(P<0.05)。結(jié)論丙酮酸鹽可能通過(guò)降低海馬組織內(nèi)ROS的產(chǎn)生,減少海馬神經(jīng)細(xì)胞死亡,從而提高AD模型大鼠的學(xué)習(xí)記憶水平。【關(guān)鍵詞】丙酮酸鹽阿爾茨海默病學(xué)習(xí)記憶【中圖分類】R592【文獻(xiàn)標(biāo)志碼】AEfectsofpyruvateonlearningandmemoryinaratmodelofAlzheimer’Sdisease.WANGXiaonan,HUXue一YANGYang,WANGSiqi.DepartmentsofRespiratoryandInfect
4、iousdisease,theFirstaffiliatedHospitalofChinaMed-icalUniversity,Shengyang,110001,China.Tel:024-83283770.【Abstract】ObjectiveTostudytheeffectsofpyruvateonlearning,memoryandneuronalcelldeathofthehippo—campusinaratmodelofAlzheimer’Sdisease(AD).MethodsAtotalof36ratswereran
5、domlydividedintocontrolgroup,ADmodelgroup,andpyruvategroup.Generalconditionwasobservedafter6-weekdipsacustreatment.Morriswatermazewasusedtodeterminelearningandmemoryinanimals.Hematoxylinandeosin(H—E)stainingwasusedtoquantifyneuronaldeathinthehippocampus.Thereactiveoxy
6、genspecies(ROS)wasassessedbyusing2,7一dichlorodi·hydrofluoresceindiacetatefH2DCF-DA).ResultsComparedwithADmodelgroup,pyruvategroupshowedimprovedgen-eralcondition,shortenedescapelatencyf41.37~6.24,31.67~7.26,24.26~7.16,20.45~5.72,19.36~5.89,respectivelyP<0.05),increased
7、activitytimeontheformerplatformquadrant(50.36~7.46S,P8、ndmemoryandde-creasetheneuronalcelldeaththroughpreventingtheROSproductioninADrats.【Keywords】P)rmvateAlzheimer’SdiseaseLearni