[Parkinson disease: mechanisms of cell death].

Abstract excerpt

Parkinson disease is a neurodegenerative disorder of aging characterized by a selective and progressive loss of dopaminergic neurons within the substantia nigra. The diagnosis of the disease is made when neuronal cell loss exceeds 50 p. 100 indicating that the degenerative process started well before the onset of the first clinical symptoms. Three populations of dopaminergic neurons seem to coexist in the...

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