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Electroacupuncture attenuates the decrease of hippocampal progenitor cell proliferation in the adult rats exposed to chronic unpredictable stress

机译:电针对慢性不可预见应激成年大鼠减轻海马祖细胞增殖的抑制作用。

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The present study was designed to investigate whether electroacupuncture (EA) was beneficial to extenuate the behavioral deficit in a rat model of depression induced by chronic unpredictable stress (CUS) and to observe the effect of EA on progenitor cell proliferation in the dentate gyrus (DG) of hippocampus. EA was performed on acupoints "Bai-Hui" (Du 20) and unilateral "An-Mian" (EX 17) once daily for 3 consecutive weeks, 2 weeks post CUS procedure. Open field test and forced swimming test were employed to evaluate the behavioral activity during a stress period or EA treatment. The results revealed that exposure to CUS resulted in a decrease of behavioral activity, whilst a daily session of EA treatment significantly reversed the behavioral deficit of these depression model rats. Moreover, as shown by 5-bromo-2-deoxyuridine (BrdU) labeling immunohistochemistry, hippocampal progenitor cell proliferation was decreased in the DG of depression model rats. Intriguingly, EA treatment effectively blocked this decrease. The study demonstrated a potential antidepressant-like effect of EA treatment on CUS induced depression model rats, which might be mediated by up-regulating the hippocampal progenitor cell proliferation. (c) 2007 Published by Elsevier Inc.
机译:本研究旨在调查电针(EA)是否有助于减轻慢性不可预测压力(CUS)诱发的抑郁模型大鼠的行为缺陷,并观察EA对齿状回祖细胞增殖的影响)海马。 CUS手术后2周,连续3周每天一次对“白会”(Du 20)和单侧“安面”(EX 17)穴位进行EA。采用野外试验和强迫游泳试验来评估应激期或EA治疗期间的行为活动。结果显示,暴露于CUS导致行为活动减少,而每天进行EA治疗可显着逆转这些抑郁模型大鼠的行为缺陷。而且,如5-溴-2-脱氧尿苷(BrdU)标记的免疫组织化学所示,抑郁模型大鼠的DG中海马祖细胞增殖减少。有趣的是,EA治疗有效地阻止了这种下降。这项研究表明,EA对CUS诱发的抑郁模型大鼠具有潜在的抗抑郁样作用,其作用可能是通过上调海马祖细胞的增殖来实现的。 (c)2007年由Elsevier Inc.发布。

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