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dopamine

[doh-puh-meen]

noun

Biochemistry. a catecholamine neurotransmitter in the central nervous system, retina, and sympathetic ganglia, acting within the brain to help regulate movement and emotion: its depletion may cause Parkinson's disease. Compare dopa.

Pharmacology. a dopamine preparation used to increase the force of contraction of the heart in the treatment of shock.

Compare levodopa.

Origin:
1955–60; see dopa, amine

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Dopamine is always a great word to know.

So is plutonium. Does it mean:

Symbol: Nd; atomic weight: 144.24; atomic number: 60

Symbol: Pu; atomic weight: 242; atomic number: 94

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Example Sentences

Some doctors recommend regular use of dopamine receptor agonists for patients who.

Exercise increases serotonin and dopamine production in the brain.

Dopamine has been implicated in other addiction studies.

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Some doctors recommend regular use of dopamine receptor agonists for patients who.

Exercise increases serotonin and dopamine production in the brain.

Dopamine has been implicated in other addiction studies.

Researchers use two imaging methods to pinpoint dopamine as key chemical in human brain's pleasure and motivation circuits.

Thought to optimize levels of dopamine and norepinephrine, enhancing concentration and turning mundane tasks into wondrous ones.

Earlier research showed that nicotine stimulates the release of the neurotransmitter molecule dopamine in the brain.

Moreover, dopamine is particularly implicated in schizophrenia.

Higher levels of dopamine in fall and winter could explain yearly mood cycles.

Novel or exciting pursuits also stimulate the brain to pump out more dopamine.

When it comes to a general genetic susceptibility, the leading suspect is a defect in the dopamine system, experts say.

Haloperidol, an antipsychotic drug, works by blocking dopamine receptors.

One prevailing view of addiction holds that alcohol and other drugs alter the way dopamine works in the brain.

But banana peels, especially green ones, could be a source of dopamine and other antioxidants for producing nutraceuticals.

Imbalances with serotonin and dopamine may explain in part why people with anorexia do not experience a sense of.

Plainly put, it would mean one's behaviour is dictated by the extra dopamine secreted by a bug inherited from birth.

Researchers have known for a long time that the neurotransmitter dopamine plays a vital role in the brain.

The chemicals dopamine and norepinephrine are of special interest.

In women without an eating disorder, the boost in dopamine acted as expected, lighting up the brain's pleasure centers.

Scientists believe that once in the brain, certain fetal or adrenal tissues produce dopamine.

These nerve cells send dopamine to the striatum, another midbrain structure, which regulates the planning of movement.

Volkow found that the dopamine system of cocaine users remained impaired for up to three months after their last snort.

These traits that come from having low dopamine function have an upside.

Moreover, a brain chemical called dopamine regulates this clock.

They bred mice to lack certain aspects of dopamine function and monitored the resulting din.

Nerve cells use a brain chemical called dopamine to help control muscle movement.

The findings suggest an alternative to antipsychotics, which reduce tics by blocking dopamine.

After an impressive play, the levels of dopamine in fans' brains spike similarly to the brain's response to cocaine.

The researchers hoped that brain scans of middle-aged people could reveal the earliest signs of dopamine loss.

Dopamine in particular has been linked to feelings of euphoria.

Since animals rely overwhelmingly on their sense of smell, then chemical odors would stimulate the production of dopamine.

Bupropion affects the reuptake of the serotonin, norepinephrine, and dopamine neurotransmitters.

One thing all drugs of abuse have in common is the ability to activate the dopamine system.

Parkinson's disease occurs when nerve cells that produce dopamine are impaired or die.

Dopamine supplementation with its difficulties could be avoided.

New experiences activate the brain's reward system, flooding it with dopamine and norepinephrine.

In addition to being responsible for excitement, energy and motivation, dopamine causes pupillary dilation.

Most drugs that treat schizophrenia work by blocking receptors of the neurotransmitter dopamine.

The learning process in the human mind his met with chemical rewards from the brain, in the form of dopamine and endorphins.

Dopamine is thought to play a major role in psychotic symptoms.

The team used the tiny units to transport a fluorescent marker gene to dopamine neurons in the brains of mice.

All were taking high doses of medicines that block the workings of the brain chemical dopamine.

Naltrexone works to mitigate the disease process by blocking the effects of dopamine.

Dopamine blockers may help reduce abnormal behaviors and movements.

Dopamine deficiency causes mental/physical lethargy.

As with addiction to drugs or cigarettes or food, the chemical driver of this process is the feel-good neurotransmitter dopamine.

The pleasurable feeling that comes with the successes is brought about by a surge in the neurotransmitter dopamine.

These changes might be linked to the excess dopamine the sleep-deprived brain tends to fire off in an effort to help keep alert.

COLLAPSE

Collins

World English Dictionary

dopamine (ˈdɒpəmɪn)

—n
	a chemical found in the brain that acts as a neurotransmitter and is an intermediate compound in the synthesis of noradrenaline. Formula: (HO)₂C₆H₃(CH₂)₂NH₂

[from d(ihydr)o(xy)p(henylethyl)amine]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

dopamine

1959, from DOPA, the amino acid (from first letter of elements of dioxyphenylalanine), + -amine.

American Heritage

Medical Dictionary

dopamine do·pa·mine (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. Also called 3-hydroxytyramine.

American Heritage

Science Dictionary

dopamine

(dō'pə-mēn') Pronunciation Key
A monoamine neurotransmitter that is formed during the synthesis of norepinephrine and is essential to the normal functioning of the central nervous system. A reduction of dopamine in the brain is associated with the development of Parkinson's disease. Chemical formula: C₈H₁₁NO₂.

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