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.

Abbott reports positive results from LCIG Phase 3 trial for advanced Parkinson's disease

Abbott announced today the results from a Phase 3 trial evaluating the company's investigational compound for advanced Parkinson's disease, levodopa-carbidopa intestinal gel (LCIG).

18 Apr 2012

Berries may reduce Parkinson’s disease risk in men: Study

A new study has found that men who regularly consume foods rich in flavonoids, such as berries, apples, certain vegetables, tea and red wine, may significantly reduce their risk for developing Parkinson's disease. The study was published in the journal Neurology this week. It added that there was no such effect among women.

9 Apr 2012

Brains of people with anorexia and obesity are wired differently

The brains of people with anorexia and obesity are wired differently, according to new research. Neuroscientists for the first time have found that how our brains respond to food differs across a spectrum of eating behaviors - from extreme overeating to food deprivation.

4 Apr 2012

UCB receives FDA approval for Neupro to treat idiopathic Parkinson's, RLS

UCB announced today that the U.S. Food and Drug Administration (FDA) approved Neupro (Rotigotine Transdermal System) for the treatment of the signs and symptoms of advanced stage idiopathic Parkinson's disease (PD) and as a treatment for moderate-to-severe primary Restless Legs Syndrome.

3 Apr 2012

Introducing art into nursing care improves stroke survivors' QOL

Stroke survivors who like art have a significantly higher quality of life than those who do not, according to new research. Patients who appreciated music, painting and theatre recovered better from their stroke than patients who did not.

16 Mar 2012

AT-1001 shows promise in treating drug addiction

In preclinical studies, researchers at SRI International and Astraea Therapeutics have recently evaluated the role of a new drug receptor target that shows promise for the treatment of drug addiction.

15 Mar 2012

Reviva to initiate enrollment in RP503 phase 2 study for schizophrenia

Reviva Pharmaceuticals, Inc., a privately held drug discovery and development company, today announced enrollment of patients in its phase 2 clinical study of RP503 for schizophrenia and schizoaffective disorder.

13 Mar 2012

OPKO Health, Scripps Research partner to commercialize Parkinson's disease compound, SR 3306

The Scripps Research Institute and OPKO Health, Inc. today announced a global agreement for the development and commercialization of SR 3306, a novel compound discovered by scientists from the Florida campus of The Scripps Research Institute that blocks the destruction of brains cells in animal models of Parkinson's disease.

12 Mar 2012

TSRI, OPKO Health to develop and commercialize SR 3306 for Parkinson's

OPKO Health, Inc. and The Scripps Research Institute today announced a global agreement for the development and commercialization of SR 3306, a novel compound discovered by scientists from the Florida campus of The Scripps Research Institute that blocks the destruction of brains cells in animal models of Parkinson's disease.

12 Mar 2012

BioLineRx receives European patent for BL-1020 to treat schizophrenia

BioLineRx, a biopharmaceutical development company, announced today that a European patent has been granted claiming BL-1020's composition and its use for the treatment of schizophrenia.

8 Mar 2012

Parkinson's drug Amantadine may help brain injury victims: Study

The study shows that Amantadine helps boost brain levels of dopamine, a neurotransmitter linked to arousal. And for patients who are in a vegetative state following a brain injury, the drug can help -- possibly by improving responsiveness during rehabilitation.

1 Mar 2012

Gedeon Richter and Forest Labs' cariprazine Phase III trials on schizophrenia meet primary endpoint

Forest Laboratories, Inc. and Gedeon Richter Plc. today announced positive top-line results in 2 Phase III clinical trials of cariprazine (RGH-188) for the treatment of acute exacerbation of schizophrenia.

28 Feb 2012

New drug for Huntington's disease might operate via previously unknown mechanisms of action

A study from Karolinska Institutet in Sweden shows that a new drug for Huntington's disease - pridopidine or dopamine stabiliser ACR16 - might operate via previously unknown mechanisms of action. Researchers have found that at very low concentrations, ACR16 binds to the sigma-1 receptor, a protein in the brain important to neuronal function and survival.

24 Feb 2012

New Huntington's drug might operate via previously unknown mechanisms of action

24 Feb 2012

Dopamine therapy can boost creativity in patients with Parkinson's

Some Parkinson's Disease patients can suddenly become creative when they take dopamine therapy, producing pictures, sculptures, novels and poetry. But their new-found interests can become so overwhelming that they ignore other aspects of their everyday life, such as daily chores and social activities, according to research published in the March issue of the European Journal of Neurology.

24 Feb 2012

Bath salts mimic effects of two powerful narcotics

The street drug commonly referred to as "bath salts" is one of a growing list of synthetic and unevenly regulated narcotics that are found across the United States and on the Internet. New research on this potent drug paints an alarming picture, revealing that bath salts pack a powerful double punch, producing combined effects similar to both methamphetamine (METH) and cocaine.

24 Feb 2012

Tai chi could benefit Parkinson’s disease patients

A new study found that a six-month program of Tai Chi exercises helped people with various stages of Parkinson's disease improve stability, their ability to walk and reduced the frequency of falls.

12 Feb 2012

Parkinson’s disease gene - parkin explored: Study

Researchers at the University at Buffalo have discovered how mutations in the parkin gene cause Parkinson's disease, which afflicts at least 500,000 Americans and for which there is no cure. The results are published in the current issue of Nature Communications.

9 Feb 2012

Scientists reveal how psychostimulant drugs work to control hyperactivity

It has long been known that psychostimulant drugs have the paradoxical effect of reducing hyperactivity. [Psychostimulant drugs include methylphenidate - known by the trade names Ritalin, Concerta, and Methylin - and methamphetamine]. Since the mid-1950s, millions of children and adults have been prescribed stimulant medications to control attention deficit hyperactivity disorder.

8 Feb 2012

Researchers discover how mutations in parkin gene cause PD

Parkinson's disease researchers at the University at Buffalo have discovered how mutations in the parkin gene cause the disease, which afflicts at least 500,000 Americans and for which there is no cure.

8 Feb 2012