河北医科大学学报

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红景天对老年痴呆大鼠认知功能的治疗作用

  

  1. 1.河北医科大学第一医院神经内一科,河北 石家庄 050031;2.河北省脑老化与认知神经科学实验室,河北 石家庄 050031
  • 出版日期:2017-02-25 发布日期:2017-03-10
  • 作者简介:刘娜(1981-),女,河北赵县人,河北医科大学第一医院主治医师,医学硕士,从事神经内科疾病诊治研究。
  • 基金资助:
    河北省医学科学研究重点课题(20110301);河北省医学适用技术跟踪项目(GL2014015);河北省应用基础研究计划重点基础研究项目(14967725D)

The therapeutic effects of Rhodosin on cognition in AD rats

  1. 1.Department of Neurology, the First Hospital of Hebei Medical University, Shijiazhuang 050031, China;
    2.Brain aging and Cognitive Neuroscience Laboratory of Hebei Province, Shijiazhuang  050031, China
  • Online:2017-02-25 Published:2017-03-10

摘要: 摘要]〓
〖HTH〗目的〖HTSS〗〖KG*2〗观察红景天对实验性老年痴呆大鼠认知功能的治疗作用。
〖HTH〗方法〖HTSS〗〖KG*2〗制作老年痴呆及红景天干预大鼠模型,Morris 水迷宫检测大鼠模型学习记忆能力;免疫印迹法检测AKT、pAKT、GSK3β、pGSK3β、bcl2及bax 蛋白表达水平,电镜观察大鼠海马组织超微结构。
〖HTH〗结果〖HTSS〗〖KG*2〗造模后模型组、红景天组逃避潜伏期时间均长于对照组;治疗后逃模型组、红景天组避潜伏期时间均长于对照组,而红景天组短于模型组(P<005)。造模后模型组、红景天组目标象限停留时间均明显短于对照组(P<005);治疗后模型组、红景天组目标象限停留时间均短于对照组,而红景天组长于模型组(P<005)。pGSK3β蛋白红景组与模型组低于对照组,红景天组高于模型组;pAKT蛋白红景天组高于对照组与模型组,模型组低于对照组(P<005)。bcl2模型组低于对照组,红景天组高于对照组和模型组,(P<005);bax模型组高于对照组和红景天组(P<005)。
〖HTH〗结论〖HTSS〗〖KG*2〗红景天可改善实验性老年痴呆大鼠认知功能,其机制可能是通过PI3K/AKT/GSK3β 通路上调抑制凋亡蛋白bcl2、下调促凋亡蛋白bax实现的。

关键词: 阿尔茨海默病, 红景天, 细胞凋亡

Abstract: [Abstract] Objective〖HTSS〗〓To study the therapeutic effects of Rhodosin on cognitive function in Alzheimer disease(AD) rats.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓The AD rat models and Rhodosin intervention models were established. Learning and memory abilities of rats were tested by the Morris water maze. The protein expressions of AKT, pAKT, GSK3β, PGSK3β, bcl2 and bax were examined via Western blotting. And the ultrastructure of hippocampus neurons was determined by transmission electron microscopy.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓After modeling, the latent period of the model group and Rhodosin group was prolonged than that in the control group. After treatment, the latent period of the model group and Rhodosin group was prolonged than that in the control group. The Rhodosin group was shorter than the model group(P<005). After modeling, the stay time of the target quadrant in model group and Rhodosin group was significantly shorter than the control group, the difference was statistically significant(P<005).  After treatment, the stay time of the target quadrant in model group and Rhodosin group was also shorter than the control group, but the Rhodosin group was longer than the model group(P<005). The protein expressions of pGSK3β in the model group and Rhodosin group was lower than that in the control group, Rhodosin group higher than model group. The protein expressions of pAKT in Rhodosin group was higher than control group and model group, model group lower than control group(P<005). The protein expressions of bcl2 in model group lower than control group, Rhodosin group was higher than control group and model group(P<005). The bax protein expressions in model group was high than control group and Rhodosin group(P<005). 
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓 Rhodosin could improve cognitive function in AD rats. Its mechanisms may be through upregulating antiapoptotic protein bcl2 and downregulating proapoptotic protein bax via the PI3K/AKT/GSK3β pathway.

Key words: Alzheimer disease, RHODIOLA SACRA; apoptosis