期刊文献+

神经递质与神经干细胞分化 被引量:12

Neurotransmitters and neural stem cell differentiation
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摘要 学术背景:干细胞的自我更新、增殖和分化主要依赖于周围特殊的微环境。神经递质不仅介导神经元之间和神经元与效应器之间的信息传递,其作为细胞外环境中的一员,也参与神经干细胞的增殖与分化。目的:深入认识几种重要的神经递质对神经干细胞分化的影响。检索策略:由该论文的研究人员应用计算机检索Pubmed数据库1998—01/2006—01的相关文献,检索词“nerval stem cells,differentiation,neurotransimitters”,并限定文章语言种类为English。同时计算机检索中国期刊全文数据库1998-01/2006—01的相关文献,检索词“神经干细胞,分化,神经递质”,并限定文章语言种类为中文。共检索到94篇文献,对资料进行初审,纳入标准:①文章所述内容应与神经递质及神经干细胞分化密切相关。②同一领域选择近期发表或在权威杂志上发表的文章。排除标准:①重复性研究。②Meta分析。文献评价:文献的来源主要是通过对神经递质在神经干细胞分化中的重要作用进行汇总分析。所选用的30篇文献中,1篇为综述,其余均为临床或基础实验研究。资料综合:神经递质是神经元合成的化学物质,起着传导信息的作用。谷氨酸作为中枢神经系统一种主要的兴奋性递质,对突触信息的传递和贮存、突触可塑性的形成和维持产生重要影响。氨基丁酸是脑内含量较高的抑制性神经递质,介导大约30%~40%中枢神经系统神经元的功能,此外还具有自分泌/旁分泌功能。乙酰胆碱可通过激活α-7样烟碱乙酰胆碱受体导致原代培养新生大鼠嗅球细胞神经突起过度生长。一氧化氮广泛参与神经细胞的存活、分化和可塑性的发生。在成体脊髓、脑干和一些脑区,甘氨酸受体通过突触后细胞膜Cl^-通透性而起到突触后抑制作用。结论:神经递质作为细胞“微环境”的一部分,与神经干细胞的分化密切相关,其如何影响神经干细胞的体外增殖及大量定向诱导分化为神经元是目前研究关键所在。 As a chemical substance synthesized by neurons, neurotransmitters not only mediate message delivery between neurons or neuron and effector, but also participate in the proliferation and differentiation of neural stem cells. Glumatic acid (GLU) plays an important role in synapsis message delivery and storage, synaptic plasticity formation and maintenance. Aminobutyric acid mediates neuronal function of 30%-40% of central nervous system. Moreover, it has autocrine and paracrine functions. Acetylcholine can induce overgrowth of olfactory ensheathing cell neurite in neonate rat by activating a -7-nicotinic acetylcholine receptor. Nitric oxide acts as player in nerve cell survival, differentiation and plasticity. In adult spinal cord, brain stem and some encephalic regions, glycine receptor displays postsynaptic inhibition through CI- permeability of postsynaptic cell membrane. How neurotransmitters influence in vitro proliferation and differentiation of neural stem cells into neuron is the focus of neuron studies.
出处 《中国组织工程研究与临床康复》 CAS CSCD 北大核心 2008年第25期4917-4920,共4页 Journal of Clinical Rehabilitative Tissue Engineering Research
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参考文献30

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二级参考文献29

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