慢性饮酒及戒断对大鼠学习记忆及海马PSD-95表达的影响
发布时间:2019-06-04 03:49
【摘要】:目的探讨慢性饮酒及戒断对大鼠学习记忆及海马PSD-95表达的影响。方法 36只成年雄性SD大鼠随机分为对照组、乙醇组和戒断7 d组,对照组正常饮水饲养,乙醇组以6%(v/v)的酒精作为大鼠唯一饮水来源,持续30 d,戒断7 d组以6%(v/v)的酒精作为大鼠唯一饮水来源,持续30 d后,恢复正常饮水7 d。戒断症状评分评价大鼠的酒精戒断行为体征,Morris水迷宫实验观察不同组别大鼠学习记忆成绩,免疫组化和Western blot检测不同组别大鼠海马PSD-95蛋白表达的变化。结果柳田知司评分显示:乙醇组显著性高于对照组(q=22.31,P0.01),戒断7 d组显著性低于乙醇组(q=19.19,P0.01)。Morris水迷宫实验结果显示:与对照组比较,乙醇组大鼠逃避平台潜伏期时间连续4个实验日均显著延长(qd1=5.87,qd2=6.61,qd3=7.54,qd4=6.43,P均0.01),目标象限停留显著变短(q=17.15,P0.01),穿越平台明显减少(q=7.35,P0.01);与乙醇组比较,戒断7 d组大鼠逃避平台潜伏期时间连续4个实验日均显著变短(qd1=4.12,qd2=3.92,qd3=5.37,qd4=4.38,P均0.01),目标象限停留显著延长(q=7.83,P0.01),穿越水下平台明显增加(q=3.55,P0.05)。免疫组化和Western blot结果均显示:与对照组比较,乙醇组海马PSD-95的表达显著减少(q=16.49,P0.01),与乙醇组比较,戒断7 d组海马CA1区PSD-95的表达显著升高(q=6.98,P0.01)。结论酒精依赖可使大鼠的学习记忆能力减退,实施戒断之后学习记忆能力可以得到改善,可能与海马PSD-95蛋白的表达变化有关。
[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,
本文编号: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,
本文编号:2492450
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