河北医科大学学报

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白藜芦醇对血管性痴呆大鼠认知功能及突触可塑性的影响

  

  1. 天津市环湖医院神经内科,天津 300350
  • 出版日期:2018-05-25 发布日期:2018-05-30
  • 作者简介:李清云(1968-),女,天津人,天津市环湖医院副主任医师,医学硕士,从事脑血管疾病诊治研究。
  • 基金资助:
    天津市津南区科技计划项目(20171515)

Effects of resveratrol on cognitive function and synaptic plasticity in rats with vascular dementia

  1. Department of Neurology, Tianjin Huanhu Hospital, Tianjin 300350, China
  • Online:2018-05-25 Published:2018-05-30

摘要: [摘要]〓
〖HTH〗目的〖HTSS〗〖KG*2〗观察白藜芦醇对血管性痴呆(vascular dementia,VD)大鼠认知功能的影响并探讨其对突触可塑性的影响。
〖HTH〗方法〖HTSS〗〖KG*2〗将45只SD大鼠随机分为3组:对照组、VD组和治疗组,每组大鼠15只。VD组和治疗组大鼠采用双侧颈总动脉结扎法制作VD模型。治疗组大鼠于造模后给予白藜芦醇治疗。应用Morris水迷宫检测大鼠空间认知能力;采用Western blot法检测大鼠海马部位突触可塑性相关蛋白(PSD95、SYN)的表达。
〖HTH〗结果〖HTSS〗〖KG*2〗与对照组大鼠相比,VD组大鼠认知功能下降,海马PSD95、SYN的表达明显减低(P<005);与VD组大鼠相比,治疗组大鼠认知能力提高,海马PSD95、SYN的含量明显增多(P<005)。
〖HTH〗结论〖HTSS〗〖KG*2〗白藜芦醇治疗可明显改善VD大鼠空间认知功能的损害,其发挥神经保护作用的机制可能与改善受损的突触可塑性密切相关。

关键词: 痴呆, 血管性, 白藜芦醇, 认知功能

Abstract: [Abstract] Objective〖HTSS〗〓To observe the effect of resveratrol on the cognitive function of rats with vascular dementia(VD) and to explore its influence on synaptic plasticity.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓Fortyfive SD rats were randomly divided into 3 groups: the control group, the VD group and the treatment group, 15 for each group. The VD rats (rats in the VD group and the treatment group) were established by bilateral common carotid artery occlusion. The rats in the treatment group received resveratrol treatment after modeling. Cognitive function was tested by the Morris water maze experiment. The expression of synaptic plasticity associated proteins(PSD95,SYN) in hippocampus of rats were detected by Western blot method.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓Compared with the rats in the control group, the cognitive function of rats in the VD group was decreased, and the expression of the hippocampus PSD95 and SYN was significantly reduced(P<005). Compared with the rats in the VD group, the cognitive function of rats in the VD group was increased, and the expression of the hippocampus PSD95 and SYN was significantly increased(P<005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓Resveratrol treatment could improve the spatial cognitive ability of VD rats significantly. The mechanism of its neuroprotective effect may be closely related to the improvement of impaired synaptic plasticity.

Key words: dementia, vascular, resveratrol, cognitive ability