Cholinergic and dopaminergic aspects of dementia in Parkinson's disease: postmortem neuropathological findings and modeling of cognitive dysfunction in rodents
Motor symptoms are currently considered the first clinical hallmark of Parkinson’s disease (PD). They develop as a result of dopamine loss in the striatum, subsequent to the progressive neurodegeneration of dopamin- ergic neurons in the substantia nigra. However, non-motor symptoms are frequent in PD patients and can greatly affect their quality of life. Among these, cognitive impairment affects p
