Examples of pleasantry in a sentence. â 1 how are youâ is merely a social pleasantry. 2  his after-dinner speeches usually include the sort of gentle pleasantry that raises a chuckle.
Parkinsonâs disease (PD) is the most common neurodegenerative cause of parkinsonism, a clinical syndrome characterized by lesions in the basal ganglia, predominantly in the substantia nigra.PD makes up approximately 80% of cases of parkinsonism.arkinsonâs disease (PD) is the most common neurodegenerative cause of parkinsonism, a clinical syndrome characterized by lesions in the basal ganglia, predominantly in the substantia nigra.
Parkinson's disease is a degenerative disorder of the central nervous system. This disease belongs to a group of conditions called motor system disorders and is the result of the loss of dopamine-producing brain cells.arkinsonâs disease is a movement disorder characterized primarily by tremor at rest, stiffness and slowness of movements. The disease and its symptoms are due to degeneration of a very specific part of the brain called the substantia nigra, resulting in loss of dopamine in the brain.