首页> 外文期刊>Life sciences >The herbal medicine Dipsacus asper Wall extract reduces the cognitive deficits and overexpression of beta-amyloid protein induced by aluminum exposure.
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The herbal medicine Dipsacus asper Wall extract reduces the cognitive deficits and overexpression of beta-amyloid protein induced by aluminum exposure.

机译:草药Dipsacus asper Wall提取物可减少铝暴露引起的认知缺陷和β-淀粉样蛋白的过表达。

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摘要

Excess aluminum (Al) exposure impairs neurocognitive function in humans and animals. Epidemiologic studies have shown a potential link between chronic Al exposure and Alzheimer's disease. In the present study, we sought to evaluate the protective effects of the herbal medicine Dipsacus asper extract against the cognitive impairment and overexpression of hippocampal beta-amyloid protein (Abeta) induced by chronic Al exposure in rats. Vitamin E (VE) was used as a positive control. Following exposure to 0.3% aluminum chloride (AlCl(3)) solution for 90 days in their drinking water, animals displayed a striking decrease (>80%) in step-through latency in the passive avoidance task and a significant increase (123%) in the number of Abeta immunoreactive cells in the hippocampus compared to controls. Al-exposed animals were then randomly assigned to receive vehicle, Dipsacus asper extract (4 g/kg), or VE (40 mg/kg) treatment up to 5 months. Both Dipsacus asper extract and VE significantly ameliorated animal's performance impairment in the passive avoidance task and suppressed the overexpression of hippocampal Abeta immunoreactivity. The effects of Dipsacus asper extract, but not VE, increased with time of treatment. The present results suggest that Dipsacus asper extract may possess therapeutic effects against Alzheimer's disease.
机译:铝(Al)过量暴露会损害人类和动物的神经认知功能。流行病学研究表明,慢性铝暴露与阿尔茨海默氏病之间存在潜在的联系。在本研究中,我们试图评估中草药Dipsacus asper提取物对大鼠慢性A1暴露引起的海马β-淀粉样蛋白(Abeta)认知障碍和过度表达的保护作用。维生素E(VE)用作阳性对照。在饮用水中将0.3%氯化铝(AlCl(3))溶液暴露90天后,动物在被动回避任务中的逐步潜伏期显着减少(> 80%),并显着增加(123%)与对照组相比,海马中Abeta免疫反应细胞的数量然后将暴露于铝中的动物随机分配接受媒介物,Dipsacus asper提取物(4 g / kg)或VE(40 mg / kg)治疗,直至5个月。 Dipsacus asper提取物和VE均可显着改善动物在被动回避任务中的性能损害,并抑制海马Abeta免疫反应性的过表达。随着治疗时间的延长,Dipsacus asper提取物的作用增强,而VE则没有。目前的结果表明,Dipsacus asper提取物可能具有针对阿尔茨海默氏病的治疗作用。

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