dopamine

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dopamine

 [do´pah-mēn]
a compound produced by the decarboxylation of dopa; it is the direct precursor in the synthesis of norepinephrine and is also a neurotransmitter in the central nervous system. It is administered intravenously to correct hemodynamic imbalance in persons with shock because it increases blood pressure, especially systolic pressure, as well as urinary output; it is also used as a cardiac stimulant.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

do·pa·mine (DM),

(dō'pă-mēn),
An intermediate in tyrosine metabolism and precursor of norepinephrine and epinephrine; neurotransmitter is the peripheral and central nervous systems; depletion of dopamine produces Parkinson disease.
Farlex Partner Medical Dictionary © Farlex 2012

dopamine

(dō′pə-mēn′)
n.
A monoamine neurotransmitter formed in the brain by the decarboxylation of dopa and essential to the normal functioning of the central nervous system. A reduction in its concentration within the brain is associated with Parkinson's disease.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

dopamine

Neurology A catecholamine hormone and neurotransmitter essential to CNS activity; it is involved motor control, cognition, and reward; abnormal dopamine levels occur in Parkinson's disease, paranoia, memory and concentration defects; dopamine may modulate endorphin levels, altering perception of pain and pleasure; it restricts prolactin, affecting libido See Biogenic amine, Catecholamine, Indolamine, Serotonin.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

do·pa·mine

(DM) (dō'pă-mēn)
An intermediate in tyrosine metabolism and precursor of norepinephrine and epinephrine.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

dopamine

A monoamine NEUROTRANSMITTER and hormone with an adrenaline-like action. Dopamine is the principal neurotransmitter in the extrapyramidal system. It is formed in the brain from the amino acid tyrosine via dopa and the latter, in the form of levodopa is used to treat PARKINSON'S DISEASE. Dopamine is the precursor of noradrenaline. It is also concerned with mood, memory and food intake. Excess is associated with psychiatric disorders. Dopamine is converted into at least 30 other substances some of which are hallucinogenic. The drug is on the WHO official list.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

dopamine

the decarboxylation product of DOPA. Formula: C8H11 O2 N.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Dopamine

A neurochemical made in the brain that is involved in many brain activities, including movement and emotion.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

do·pa·mine

(dō'pă-mēn)
An intermediate in tyrosine metabolism and precursor of norepinephrine and epinephrine.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The existence of dynamic fluctuations in the activity of the dopaminergic system of migraine patients has also been demonstrated with PET [80].
As increased DA in the CNS attenuated the decrease in mechanical efficiency during exercise (15), it is possible that the dopaminergic system adjusts motor responses that influence physical performance.
These results further support the potential toxic effects of ATR on the nigrostriatal dopaminergic system.
The renal dopaminergic system is a local independent natriuretic system necessary to maintain the normal balance of sodium and water, blood pressure levels, and renal redox steady state.
Role of the dopaminergic system in depression: clinical correlates of the apomorphine test.
The dopaminergic system. DA and norepinephrine are monoamine neurotransmitters and are derived from tyrosine.
Evidence for the involvement of the serotonergic, noradrenergic, and dopaminergic systems in the antidepressant-like action of riparin III obtained from Aniba riparia (Nees) Mez (Lauraceae) in mice.
(11-18) Similarities between disorders of increased serotonergic activity and disorders of low dopaminergic activity (Table 1) suggest both may result from an imbalance between the serotonergic and dopaminergic systems, which have reciprocal relationships in the CNS.(19)
Though the findings are still preliminary, they are in accord with a growing body of data indicating that the glutaminergic and GABAergic neuron systems may be as important in the etiology of depression as are the more commonly targeted serotonergic and dopaminergic systems, he said.
Selective vulnerability of dopaminergic systems to industrial chemicals: risk assessment of related neuroendocrine changes.
Hence, they will have access to other brain dopaminergic systems and their postsynaptic receptors which form the nigrostriatal and mesolimbic dopaminergic systems (Fig.