Neurosci Lett:如此神奇!地中海植物提取物或可有效抵御多种神经变性疾病

2017-01-11 佚名 生物谷

图片来源:www.sciencedaily.com 阿尔兹海默病和帕金森疾病是两种和年龄相关相关的神经变性疾病,其主要特点就是随着时间延续,患者的大脑中会积累损伤患者机体神经系统的粘性蛋白聚集物,进而就会影响患者的运动能力和记忆力。日前一项发表在国际杂志Neuroscience Letters上的研究报告中,来自马尔他大学等机构的研究人员通过研究发现,提取自地中海植物仙人掌和褐海藻中的特

图片来源:www.sciencedaily.com

阿尔兹海默病和帕金森疾病是两种和年龄相关相关的神经变性疾病,其主要特点就是随着时间延续,患者的大脑中会积累损伤患者机体神经系统的粘性蛋白聚集物,进而就会影响患者的运动能力和记忆力。日前一项发表在国际杂志Neuroscience Letters上的研究报告中,来自马尔他大学等机构的研究人员通过研究发现,提取自地中海植物仙人掌和褐海藻中的特殊化合物或可作为新型候选药物来帮助抵御神经变性疾病的发生。

研究者Neville Vassallo博士指出,长期以来我们一直在对地中海植物进行筛选,希望能够找到特殊化合物能够干扰毒性蛋白聚集物的形成,本文研究中我们发现,来自仙人掌和褐海藻中的特殊化合物或可有效抵御蛋白聚集物的形成。研究人员利用这种提取化合物来对携带β 淀粉样蛋白聚集物的啤酒酵母进行试验,随着与特殊化合物不断接触,酵母细胞的健康程度发生了明显改善,这一可喜结果就鼓励着研究人员对遗传修饰患上阿尔兹海默病的果蝇进行研究。

研究者发现,基于海藻提取物的常规疗法能够将患病果蝇的中位寿命期延长2天,而使用仙人掌提取物则能够将果蝇寿命延长4天;考虑到果蝇寿命中的一天等同于人类生命中的一年,随后研究者通过深入研究发现,基于提取物的疗法能够明显改善患病果蝇的运动性(18%)。此外研究者还表示,这种提取物能够延长大脑中α-突触核蛋白过载果蝇的寿命,α-突触核蛋白是引发帕金森疾病的一种毒性蛋白,因此,诸如阿尔兹海默病和帕金森疾病或许隐藏着相同的神经变性机制,研究者认为,这种提取自地中海植物中的化合物能够干预β-淀粉样蛋白和α-突触核蛋白的形成,从而就阻断了这些毒性蛋白对大脑神经元的损伤。

最后研究者Ruben J. Cauchi表示,能够靶向作用多种神经变性疾病背后分子通路的生物活性制剂或许都能够帮助科学家们开发抵御大脑神经性障碍的新型疗法,当然后期研究者们还需要进行多项安全性实验和更深层次的研究来推动当前研究继续进行。

原始出处:

Briffa M, Ghio S, Neuner J, Gauci AJ, Cacciottolo R, Marchal C, Caruana M, Cullin C, Vassallo N, Cauchi RJ.Extracts from two ubiquitous Mediterranean plants ameliorate cellular and animal models ofneurodegenerative proteinopathies.Neurosci Lett. 2016 Dec 2;638:12-20. doi: 10.1016/j.neulet.2016.11.058. 

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    2017-12-20 xuyong535
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    2017-01-13 zhouqu_8
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    2017-01-13 huangdf
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    2017-01-13 wgx311
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