chemical in brain tissue acting as a neurotransmitter, a lack of which can be associated with parkinson's disease
Parkinson's Disease. Parkinson's disease may be a slowly progressive disorder that affects movement, muscle control, and balance. a part of the disease method develops as cells are destroyed in certain components of the brain stem, particularly the crescent cell mass referred to as the nucleus niger. Parkinson's disease develops as cells are destroyed in certain components of the brain stem, particularly the crescent cell mass referred to as the nucleus niger. 2  The lack of a chemical traveller, referred to as monoamine neurotransmitter, in the brain is claimed to be the main cause for the Parkinson's disease.