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Dopamine

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Updated October 22, 2009

Definition:
Dopamine is a monoamine neurotransmitter formed in the brain from the amino acid tyrosine. Dopamine is essential for the healthy functioning of the central nervous system; it has effects on emotion, perception and movement. Parkinson's disease is caused by the degeneration or destruction of nerve cells that produce dopamine. Schizophrenia and the psychotic features of bipolar disorder are associated with imbalances of the activity of dopamine and serotonin in the brain.
Pronunciation: DOPE-uh-meen

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