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Neuroprotective effect of rhaponticin against Parkinson disease: Insights from in vitro BV-2 model and in vivo MPTP-induced mice model

机译:rhaponticin对帕金森病的神经保护作用:体外BV-2模型和体内MPTP诱导的小鼠模型见解

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Parkinson's disease (PD) is a complex neurodegenerative illness associated with the loss or damage to neurons of the dopaminergic system in the brain. Few therapeutic approaches and considerable side effects of conventional drugs necessitate a new therapeutic agent to treat patients with PD. Rhaponticin is a natural hydro-xystilbene, found in herbal plants such as Rheum rhaponticum, and known to have desirable biological activity including anti-inflammatory properties. However, the neuroinflammation on rhaponticin levels has only been investigated partially so far. So, the current study explored whether rhaponticin could ameliorate the pathophysiology observed in both the in vitro microglial BV-2 cells and the in vivo (1-methyl-4-phenyl-1,2,3,5-tetrahydropyridine [MPTP])-mediated PD model. The results show rhaponticin significantly attenuated lipopolysaccharide (LPS)-mediated microglial activation by suppressing nitric oxide synthase in conjunction with abridged reactive oxygen species production together with proinflammatory mediator reduction. In vivo rhaponticin treatment improves motor impairments as well as the loss of dopaminergic neurons in MPTP-treated mice possibly through suppression via mediators of inflammation. Taken together, these results offer evidence that rhaponticin exerts anti-inflammatory effects and neuroprotection in an LPS-induced microglial model and the MPTP-induced mouse models of PD.
机译:帕金森病(PD)是一种复杂的神经退行性疾病,与大脑多巴胺能系统神经元的丢失或损伤有关。传统药物的治疗方法较少且副作用较大,因此需要一种新的治疗剂来治疗帕金森病患者。Rhaponticin是一种天然的羟基二苯乙烯,存在于大黄等草本植物中,已知具有理想的生物活性,包括抗炎特性。然而,到目前为止,关于rhaponticin水平的神经炎症只进行了部分研究。因此,目前的研究探讨了rhaponticin是否可以改善体外小胶质细胞BV-2细胞和体内(1-甲基-4-苯基-1,2,3,5-四氢吡啶[MPTP])介导的PD模型中观察到的病理生理学。结果表明,rhaponticin通过抑制一氧化氮合酶、减少活性氧产生以及减少促炎症介质,显著减弱脂多糖(LPS)介导的小胶质细胞激活。体内rhaponticin治疗可改善MPTP治疗小鼠的运动损伤以及多巴胺能神经元的丢失,可能是通过炎症介质的抑制。综上所述,这些结果证明,rhaponticin在LPS诱导的小胶质细胞模型和MPTP诱导的PD小鼠模型中发挥抗炎作用和神经保护作用。

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