Dopamine News and Research

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Dopamine is a hormone and neurotransmitter occurring in a wide variety of animals, including both vertebrates and invertebrates. In the brain, this phenethylamine functions as a neurotransmitter, activating the five types of dopamine receptors — D1, D2, D3, D4 and D5, and their variants. Dopamine is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area. Dopamine is also a neurohormone released by the hypothalamus. Its main function as a hormone is to inhibit the release of prolactin from the anterior lobe of the pituitary. Dopamine has many functions in the brain, including important roles in behavior and cognition, motor activity, motivation and reward, inhibition of prolactin production (involved in lactation), sleep, mood, attention, and learning. Dopaminergic neurons (i.e., neurons whose primary neurotransmitter is dopamine) are present chiefly in the ventral tegmental area (VTA) of the midbrain, substantia nigra pars compacta, and arcuate nucleus of the hypothalamus.
Implantable chip could serve as a prosthetic retina for people who suffer from age-related blindness

Implantable chip could serve as a prosthetic retina for people who suffer from age-related blindness

SPECT imaging helps attention deficit hyperactivity disorder patients

SPECT imaging helps attention deficit hyperactivity disorder patients

Embryonic cell implantation improves motor skills in patients with Parkinson's disease

Embryonic cell implantation improves motor skills in patients with Parkinson's disease

Marijuana/Cannabis causes transient schizophrenia-like symptoms

Marijuana/Cannabis causes transient schizophrenia-like symptoms

Drug combination reduces cocaine use

Drug combination reduces cocaine use

Significant vaccine advance for Parkinson’s disease therapy

Significant vaccine advance for Parkinson’s disease therapy

Neuroscientists have overcome a major obstacle in gene therapy research

Neuroscientists have overcome a major obstacle in gene therapy research

Antipsychotic compound bifeprunox worth USD 1 billion per year to Solvay and Wyeth

Antipsychotic compound bifeprunox worth USD 1 billion per year to Solvay and Wyeth

Genes that allow nerve cells to communicate may have come from bacteria eons ago

Genes that allow nerve cells to communicate may have come from bacteria eons ago

Combination drug therapies targeting brain region that controls addiction significantly reduces cocaine use in primates

Combination drug therapies targeting brain region that controls addiction significantly reduces cocaine use in primates

Research into placebo effect among Parkinson’s patients

Research into placebo effect among Parkinson’s patients

Britannia Pharmaceuticals’ partner receives FDA approval for Parkinson’s disease treatment

Britannia Pharmaceuticals’ partner receives FDA approval for Parkinson’s disease treatment

Gambling increases level of brain chemical

Gambling increases level of brain chemical

Ritalin drug used to treat hyperactive children boosts the potency of Parkinson's drug levodopa

Ritalin drug used to treat hyperactive children boosts the potency of Parkinson's drug levodopa

Gene therapy helps alcoholic rats

Gene therapy helps alcoholic rats

Teens who suffered iron deficiency as infants are likely to score lower on cognitive and motor tests

Teens who suffered iron deficiency as infants are likely to score lower on cognitive and motor tests

Improvement of Parkinson’s disease symptoms when neurorestorative molecule pumped to the center of the brain

Improvement of Parkinson’s disease symptoms when neurorestorative molecule pumped to the center of the brain

Nitric oxide, a chemical messenger involved in bodily functions shuts down a protein involved in Parkinson's disease

Nitric oxide, a chemical messenger involved in bodily functions shuts down a protein involved in Parkinson's disease

FDA approves new breakthrough Parkinson's drug

FDA approves new breakthrough Parkinson's drug

New evidence that brain circuits involved in drug addiction are also activated by the desire for food

New evidence that brain circuits involved in drug addiction are also activated by the desire for food

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