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Topic: Dopamine


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In the News (Sun 17 Dec 17)

  
  Dopamine
During the last stages of evolution in mammals, the characteristic extension of dopamine cortical innervation is also correlated with the development of cognitive capacities.
For example, in Parkinson's disease, besides motor impairment, dopamine degeneration is also expressed by alterations of both limbic, executive and cognitive functions, both improved by dopamine receptor agonists and dopa therapy.
Dopamine has thus to be considered as a key regulator that contributes to behavioural adaptation and to the anticipatory processes necessary for preparing voluntary action consequent upon intention.
www.rasagiline.com /dopamine.html   (335 words)

  
  Dopamine definition - Medical Dictionary definitions of popular medical terms
Dopamine is classified as a catecholamine (a class of molecules that serve as neurotransmitters and hormones).
Dopamine is a precursor (forerunner) of adrenaline and a closely related molecule, noradrenaline.
Dopamine is formed by the decarboxylation (removal of a carboxyl group) from dopa.
www.medterms.com /script/main/art.asp?articlekey=14345   (284 words)

  
  Dopamine - Wikipedia, the free encyclopedia
Dopamine is synthesized in the body (mainly by nervous tissue and adrenal glands) first by the dehydration of the amino acid tyrosine to DOPA by tyrosine hydroxylase and then by the decarboxylation of DOPA by aromatic-L-amino-acid decarboxylase.
Dopamine produced by neurons in the arcuate nucleus of the hypothalamus is secreted into the hypothalamo-hypophysial blood vessels of the median eminence, which supply the pituitary gland.
Dopamine is released (particularly in areas such as the nucleus accumbens and striatum) by naturally-rewarding experiences such as food, sex, use of certain drugs and neutral stimuli that become associated with them.
en.wikipedia.org /wiki/Dopamine   (1490 words)

  
 Dopamine Summary
Dopamine is one of the biogenic amines, neurotransmitters that are derived from amino acids, and is a member of the group called catecholamines that are derived from the amino acid, tyrosine.
Dopamine is synthesized in the body (mainly by nervous tissue and adrenal glands) first by the hydration of the amino acid tyrosine to DOPA by tyrosine hydroxylase and then by the decarboxylation of DOPA by aromatic-L-amino-acid decarboxylase.
Dopamine produced by neurons in the arcuate nucleus of the hypothalamus is secreted into the hypothalamo-hypophysial blood vessels of the median eminence, which supply the pituitary gland.
www.bookrags.com /Dopamine   (2734 words)

  
 Learn more about Dopamine in the online encyclopedia.   (Site not responding. Last check: )
Dopamine in the basal ganglia plays a critical role in the way our brain controls our movements.
Thus, shortage of dopamine, particularly the death of dopamine neurons in the nigrostriatal pathway, is a cause of Parkinson's disease, in which a person loses the ability to execute smooth, controlled movements.
Dopamine disorders in the frontal lobes can cause a decline in neurocognitive function, particularly those linked to the frontal lobes, such as memory, attention and problem solving.
www.onlineencyclopedia.org /d/do/dopamine.html   (403 words)

  
 sociology - Dopamine
Dopamine is synthesized in the body (mainly nervous tissue and adrenal glands) by the decarboxylation of DOPA by aromatic-L-amino-acid decarboxylase.
Dopamine is commonly associated with the 'pleasure system' of the brain, providing feelings of enjoyment and reinforcement to motivate us to do, or continue doing, certain activities.
Certainly dopamine is released (particularly in areas such as the nucleus accumbens and striatum) by naturally rewarding experiences such as food, sex, use of certain drugs and neutral stimuli that become associated with them.
www.aboutsociology.com /sociology/Dopamine   (686 words)

  
 Dopamine
Dopamine is a major neurotransmitter in the central nervous system, and its receptors are associated with a number of neuropathological disorders such as Parkinson's disease and schizophrenia.
To investigate whether dopamine receptor D5 (DRD5) T978C polymorphism is associated with the risk of developing motor fluctuations in PD, we studied this polymorphism in a case-control study of 120 subjects with sporadic PD and 110 control subjects.
The EC(50) for dopamine versus GABA toxicity was 1.5 versus 6.5 nM, respectively, and was consistent with an inhibition of phosphatase 2A.
lansbury.bwh.harvard.edu /Literature/PD2001/dopamine.htm   (15433 words)

  
 Dopamine (Dopamine) drug description - prescription drugs and medications at RxList
Dopamine Hydrochloride Injection, USP is a clear, practically colorless, aqueous, additive solution for intravenous infusion after dilution.
Dopamine HCl, a naturally occurring catecholamine, is an inotropic vasopressor agent.
Dopamine HCl is sensitive to alkalis, iron salts and oxidizing agents.
www.rxlist.com /cgi/generic/dopamine.htm   (184 words)

  
 Understanding Addiction
Dopamine affects brain processes that control movement, emotional response, and ability to experience pleasure and pain.
Neurons containing the neurotransmitter dopamine are clustered in the midbrain in an area called the substantia nigra.
Dopamine antagonists are traditionally used to treat schizophrenia and related mental disorders.
www.utexas.edu /research/asrec/dopamine.html   (1051 words)

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