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Isoliquiritigenin and liquiritin from Glycyrrhiza uralensis inhibit alpha-synuclein amyloid formation

机译:来自Glycyrrhiza Uralensis的isoliquiritigenin和Liquiritin抑制α-突触核蛋白淀粉样蛋白形成

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摘要

Parkinson's disease (PD), with widespread aggregation of alpha-synuclein in the form of Lewy bodies as a neuropathological hallmark, is a rising threat for ageing society. Glycyrrhiza uralensis is an herbal medicine and sweets used for centuries in Asia and Europe, its major pharmacologically active ingredients include isoliquiritigenin (ILG), liquiritin (LT), liquiritigenin (LG) and glycyrrhizic acid (GA). Here, we investigated the effects of Glycyrrhiza uralensis ethanol extract (GUE) and the above four compounds, on the aggregation of alpha-synuclein in vitro and in a transgenic Caenorhabditis elegans PD model NL5901. In vitro, ILG, LT and GUE inhibit the amyloid formation of alpha-synuclein and alleviate the toxicity caused by aggregates; moreover, ILG could disaggregate preformed fibrils. In vivo, ILG, LT and GUE not only reduce amyloid formation in C. elegans NL5901, but also extend its life span. Together, these data suggest that ILG and LT may be further considered as candidates for PD treatment.
机译:帕金森病(PD),具有广泛的α-突触核蛋白,作为一种神经病理学标志的形式,是对老龄化学社会的威胁。 Glycyrrhiza Uralensis是一种在亚洲和欧洲几个世纪以来几个世纪以来几个世纪以来的草药和甜食,其主要的药理学活性成分包括Isliquiritigenin(ILG),液体素(LT),液中(Lg)和甘草酸(Ga)。在这里,我们研究了甘草蛋白乙醇提取物(Gue)和上述四种化合物的影响,对体外和转基因Caenorhabdise秀丽隐杆线虫PD型NL5901的α-突触核蛋白的聚集。体外,ILG,LT和Gue抑制α-突触核蛋白的淀粉样蛋白形成,并减轻骨料引起的毒性;此外,ILG可以分解预成型的原纤维。在体内,Ilg,LT和Gue中不仅减少了C. Elegans NL5901中的淀粉样蛋白形成,而且还延长了寿命。这些数据在一起表明ILG和LT可以进一步被认为是PD治疗的候选者。

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  • 来源
    《RSC Advances》 |2016年第89期|共10页
  • 作者单位

    Huazhong Univ Sci &

    Technol Tongji Sch Pharm Wuhan 430030 Peoples R China;

    Huazhong Univ Sci &

    Technol Tongji Sch Pharm Wuhan 430030 Peoples R China;

    Huazhong Univ Sci &

    Technol Tongji Sch Pharm Wuhan 430030 Peoples R China;

    Cent Hosp Wuhan Dept Pharm Wuhan 430023 Peoples R China;

    Huazhong Univ Sci &

    Technol Tongji Sch Pharm Wuhan 430030 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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