七叶皂苷钠可减轻帕金森病慢性MPTP/丙磺舒小鼠模型中的行为障碍、氧化应激和炎症反应。

Escin attenuates behavioral impairments, oxidative stress and inflammation in a chronic MPTP/probenecid mouse model of Parkinson's disease.

作者信息

Selvakumar Govindasamy Pushpavathi, Janakiraman Udaiyappan, Essa Musthafa Mohamed, Justin Thenmozhi Arokiasamy, Manivasagam Thamilarasan

机构信息

Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar 608002, Tamilnadu, India.

Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat, Oman.

出版信息

Brain Res. 2014 Oct 17;1585:23-36. doi: 10.1016/j.brainres.2014.03.010. Epub 2014 Mar 20.

Abstract

Parkinson's disease (PD) is a progressive neurodegenerative disorder that results mainly due to the death of dopaminergic neurons in the substantia nigra (SN), and subsequently has an effect on one's motor function and coordination. The current investigation explored the neuroprotective potential of escin, a natural triterpene-saponin on chronic 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid (MPTP/p) induced mouse model of PD. Administration of MPTP led to the depleted striatal dopamine content, impaired patterns of behavior, enhanced oxidative stress and diminished expression of tyrosine hydroxylase (TH), dopamine transporter (DAT) and vesicular monoamine transporter-2 (VMAT-2). The expressions of interleukin-6 and -10, glial fibrillary acidic protein (GFAP), ionized calcium-binding adaptor protein-1 (IBA-1), tumor necrosis factor-α (TNF-α) and inducible nitric oxide synthase (iNOS) in SN were also enhanced. Oral treatment of escin significantly attenuated MPTP/p induced dopaminergic markers depletion, physiological abnormalities, oxidative stress and inhibit neuroinflammatory cytokine expressions in SN. The result of our study confirmed that escin mediated its protection against experimental PD through its antioxidant and anti-inflammatory properties.

摘要

帕金森病(PD)是一种进行性神经退行性疾病,主要是由于黑质(SN)中多巴胺能神经元的死亡所致,随后会对人的运动功能和协调性产生影响。当前的研究探讨了七叶皂苷(一种天然三萜皂苷)对慢性1-甲基-4-苯基-1,2,3,6-四氢吡啶/丙磺舒(MPTP/p)诱导的小鼠帕金森病模型的神经保护潜力。给予MPTP导致纹状体多巴胺含量减少、行为模式受损、氧化应激增强以及酪氨酸羟化酶(TH)、多巴胺转运体(DAT)和囊泡单胺转运体-2(VMAT-2)的表达降低。SN中白细胞介素-6和-10、胶质纤维酸性蛋白(GFAP)、离子钙结合衔接蛋白-1(IBA-1)、肿瘤坏死因子-α(TNF-α)和诱导型一氧化氮合酶(iNOS)的表达也增强。口服七叶皂苷可显著减轻MPTP/p诱导的多巴胺能标志物耗竭、生理异常、氧化应激,并抑制SN中神经炎症细胞因子的表达。我们的研究结果证实,七叶皂苷通过其抗氧化和抗炎特性介导了对实验性帕金森病的保护作用。

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