中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (32): 4798-4804.doi: 10.3969/j.issn.2095-4344.2016.32.013

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

骨髓间充质干细胞移植对老年性痴呆行为学的影响

高明龙1,孙  丽2,赵小川1,余  明1,王金成1   

  1. 1河北医科大学第一医院精神科,河北省石家庄市  050031
    2解放军第260医院神经内科,河北省石家庄市  050031
  • 修回日期:2016-06-30 出版日期:2016-08-05 发布日期:2016-08-05
  • 通讯作者: 王金成,主治医师,河北医科大学第一医院精神科,河北省石家庄市 050031
  • 作者简介:高明龙,男,1978年生,山东省茌平县人,汉族,2003年齐齐哈尔医学院毕业,硕士,主治医师,主要从事老年痴呆及儿童精神和行为障碍研究。
  • 基金资助:

    河北省计生委员会2014年度医学科学研究课题(ZL20140099)

Effect of bone marrow mesenchymal stem cell transplantation on senile dementia behaviors

Gao Ming-long1, Sun Li2, Zhao Xiao-chuan1, Yu Ming1, Wang Jin-cheng1   

  1. 1Department of Psychiatry, First Affiliated Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
    2Department of Neurology, the 260th Hospital of Chinese PLA, Shijiazhuang 050031, Hebei Province, China
  • Revised:2016-06-30 Online:2016-08-05 Published:2016-08-05
  • Contact: Wang Jin-cheng, Attending physician, Department of Psychiatry, First Affiliated Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • About author:Gao Ming-long, Master, Attending physician, Department of Psychiatry, First Affiliated Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Supported by:

    the 2014 Medical Research Project of Health and Family Planning Commission of Hebei Province of China, No. ZL20140099

摘要:

文章快速阅读:

文题释义:
海马神经再生:
神经再生是由神经前体细胞产生新神经元的过程。在成年哺乳动物的大脑内,嗅觉系统和海马是两个被广泛接受的具有成年神经再生能力的区域。其中,海马是与学习记忆有关的关键脑区,并在阿尔茨海默病中受损最为严重,海马的前体细胞在海马齿状回颗粒下区,这些细胞不断增殖,产生的新细胞迁移较短距离到颗粒细胞层,分化为颗粒细胞,并将轴突和树突投射到CA3区和分子层,这些新生的细胞特性类似于成熟的神经元,可迁移到脑损害部位,并与周围神经元建立突触联系,从而补偿损伤神经元的功能,这一神经再生过程在海马依赖性的学习记忆中起重要作用,有利于改善阿尔茨海默病的认知功能障碍。
阿尔茨海默病模型:用于研究阿尔茨海默病的重要动物模型有自然衰老模型、Aβ注射诱导模型、基底前脑胆碱能系统损伤模型、慢性缺血痴呆模型、铝中毒模型、与Tau蛋白过度磷酸化有关的痴呆动物模型、复合动物模型、转基因动物模型。实验采用给予大鼠灌胃三氯化铝的方式造模,此类模型虽然造模时间长,但更与人们的生活相似,且成功率高。

 

摘要
背景:
临床上通过药物治疗老年性痴呆虽然在一定程度上可以缓解患者的症状,但效果甚微。干细胞移植是对该疾病的一种新的尝试和探索。
目的:观察骨髓间充质干细胞移植对老年性痴呆大鼠行为学的影响。
方法:选取SD大鼠20只,给予连续灌胃及饮食三氯化铝60 d建立老年性痴呆大鼠模型,造模后随机分为模型组和实验组,实验组海马区注射骨髓间充质干细胞,模型组注射生理盐水,另取10只大鼠正常喂养作为对照组。移植后4周,通过Morris水迷宫检测大鼠的学习记忆能力,取大鼠脑组织检测超氧化物歧化酶活性和丙二醛水平。
结果与结论:①与模型组比较,实验组大鼠逃避潜伏期明显缩短(P < 0.05),跨越平台次数增加(P < 0.05);②与模型组比较,实验组大鼠脑组织中超氧化物歧化酶活性升高(P < 0.05),丙二醛水平降低(P < 0.05);③结果表明,骨髓间充质干细胞移植后能够改善老年性痴呆大鼠的学习记忆能力,有助于大鼠行为学的恢复。

 

 

关键词: 干细胞, 移植, 老年性痴呆, 大鼠, 骨髓间充质干细胞, 海马, 行为学, 超氧化物歧化酶, ;丙二醛

Abstract:

BACKGROUND: Drug treatment for senile dementia has unsatisfactory outcomes although to a certain extent it can reduce and delay the progression of Alzheimer’s disease. Stem cell transplantation is a new attempt for the treatment of senile dementia.
OBJECTIVE: To observe the effect of bone marrow mesenchymal stem cell transplantation on the behavior of senile dementia rats.
METHODS: Rat models of senile dementia were made in 20 Sprague-Dawley rats that were given continuous 60-day gavage of aluminium chloride solution. Then, model rats were randomized into model group treated with normal saline injection and experimental group treated with hippocampal injection of bone marrow mesenchymal stem cells, respectively. Another 10 rats undergoing normal feeding served as control group. Learning and memory ability of rats were tested by Morris water maze, and superoxide dismutase activity and malondialdehyde content in brain tissues of rats were measured by colorimetric method at 4 weeks after cell transplantation.
RESULTS AND CONCLUSION: Compared with the model group, the escape latency was shortened and the cross-platform frequency was increased in the experimental group (P < 0.05), and moreover, significantly elevated superoxide dismutase activity and reduced malondialdehyde content in the brain tissues of rats were found in the experimental group (P < 0.05). These findings indicate that bone marrow mesenchymal stem cell transplantation contributes to behavior improvement in senile dementia rats by improving the learning and memory ability.

 

 

Key words: Alzheimer Disease, Bone Marrow, Mesenchymal Stem Cell Transplantation, Neurobehavioral Manifestations, Superoxide Dismutase, Malondialdehyde, Tissue Engineering

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