Dopamine in the Gut

Dopamine is widely present in the central and peripheral nervous systems, as well as in non-nervous systems. Parkinson's disease is well recognized as a dopaminergic neurodegenerative disorder, and affected patients often show early signs of gastrointestinal disorders at initial stages of the disease. Apart from the changes that occur in emotion, movement behaviors, learning and memory, metabolism etc., dopamine has also been demonstrated to play very crucial roles in the functional regulat...