Parkinson s disease(PD),is a progressively neurodegenerative disorder,resulting from the degeneration and loss of dopaminergic neurons in the substantia nigra of midbrain.

• 帕金森病是一种以中脑黑质多巴胺能神经元变性缺失为主要病理变化的渐进性神经系统退行性疾病。