慢性飲酒及戒斷對大鼠學(xué)習(xí)記憶及海馬PSD-95表達(dá)的影響
發(fā)布時間:2019-06-04 03:49
【摘要】:目的探討慢性飲酒及戒斷對大鼠學(xué)習(xí)記憶及海馬PSD-95表達(dá)的影響。方法 36只成年雄性SD大鼠隨機(jī)分為對照組、乙醇組和戒斷7 d組,對照組正常飲水飼養(yǎng),乙醇組以6%(v/v)的酒精作為大鼠唯一飲水來源,持續(xù)30 d,戒斷7 d組以6%(v/v)的酒精作為大鼠唯一飲水來源,持續(xù)30 d后,恢復(fù)正常飲水7 d。戒斷癥狀評分評價大鼠的酒精戒斷行為體征,Morris水迷宮實(shí)驗(yàn)觀察不同組別大鼠學(xué)習(xí)記憶成績,免疫組化和Western blot檢測不同組別大鼠海馬PSD-95蛋白表達(dá)的變化。結(jié)果柳田知司評分顯示:乙醇組顯著性高于對照組(q=22.31,P0.01),戒斷7 d組顯著性低于乙醇組(q=19.19,P0.01)。Morris水迷宮實(shí)驗(yàn)結(jié)果顯示:與對照組比較,乙醇組大鼠逃避平臺潛伏期時間連續(xù)4個實(shí)驗(yàn)日均顯著延長(qd1=5.87,qd2=6.61,qd3=7.54,qd4=6.43,P均0.01),目標(biāo)象限停留顯著變短(q=17.15,P0.01),穿越平臺明顯減少(q=7.35,P0.01);與乙醇組比較,戒斷7 d組大鼠逃避平臺潛伏期時間連續(xù)4個實(shí)驗(yàn)日均顯著變短(qd1=4.12,qd2=3.92,qd3=5.37,qd4=4.38,P均0.01),目標(biāo)象限停留顯著延長(q=7.83,P0.01),穿越水下平臺明顯增加(q=3.55,P0.05)。免疫組化和Western blot結(jié)果均顯示:與對照組比較,乙醇組海馬PSD-95的表達(dá)顯著減少(q=16.49,P0.01),與乙醇組比較,戒斷7 d組海馬CA1區(qū)PSD-95的表達(dá)顯著升高(q=6.98,P0.01)。結(jié)論酒精依賴可使大鼠的學(xué)習(xí)記憶能力減退,實(shí)施戒斷之后學(xué)習(xí)記憶能力可以得到改善,可能與海馬PSD-95蛋白的表達(dá)變化有關(guān)。
[Abstract]:Objective to investigate the effects of chronic drinking and withdrawal on learning and memory and PSD-95 expression in hippocampus of rats. Methods 36 adult male SD rats were randomly divided into control group, ethanol group and abstinence group for 7 days. The control group was fed with normal drinking water. 6% (v 鈮,
本文編號:2492450
[Abstract]:Objective to investigate the effects of chronic drinking and withdrawal on learning and memory and PSD-95 expression in hippocampus of rats. Methods 36 adult male SD rats were randomly divided into control group, ethanol group and abstinence group for 7 days. The control group was fed with normal drinking water. 6% (v 鈮,
本文編號:2492450
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