1. It is believed to be jump-started by a loss of neurons in a midbrain region called the substantia nigra. 相信这是可以跳开始，由一个亏损的神经元在中脑区称为黑质。
2. In one study, glutathione levels were reduced by 40% in the substantia nigra in early stage Parkinson's disease (7). （研究7）发现早期帕金森氏症病患的脑部黑质层内谷胱甘肽水平降低了40%。
3. Results In comparison with healthy group, SERT decreased in dorsal raphe nucleus, substantia nigra and striatum in PD brains. 结果与健康组比，PD人脑标本中缝背核、黑质以及纹状体的SERT标记信号呈不同程度降低。
