[Structure and efferences of the substantia nigra pars compacta in Parkinson's disease].
[Structure and efferences of the substantia nigra pars compacta in Parkinson's disease].
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Linz, AT · Author affiliation
Klinik für Neurologie 2, Kepler Universitätsklinikum, Linz/Austria.Location evidence
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Original abstract
There is consensus that the neuropathological characteristic of Parkinson's disease (PD) is the neuronal cell loss of the substantia nigra pars compacta (SNc) in connection with a Lewy pathology. The transsynaptic spread of Lewy pathology is considered essential in PD pathogenesis. Therefore, the knowledge of pre-existing neuroanatomical connections of the SNc is essential. We describe recent animal experiments on the afferent and efferent projections of the SNc and discuss the evidence for and against the sequential transsynaptic spread of Lewy pathology in the pathogenesis of PD.