Dopamine News and Research RSS Feed - Dopamine News and Research

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.
Altered dopamine signaling may contribute to autism

Altered dopamine signaling may contribute to autism

Newly discovered genetic variations linked to autism spectrum disorder (ASD) disrupt the function of the dopamine transporter, suggesting that altered dopamine signaling contributes to this common developmental condition, according to a Vanderbilt University-led research team. [More]
Childhood macroprolactinomas amenable to dopamine agonist treatment

Childhood macroprolactinomas amenable to dopamine agonist treatment

Dopamine agonist treatment normalises prolactin levels in about three-quarters of children with macroprolactinomas, show findings from a large series. [More]
Study: Common pesticide may alter the development of brain's dopamine system

Study: Common pesticide may alter the development of brain's dopamine system

A commonly used pesticide may alter the development of the brain's dopamine system -- responsible for emotional expression and cognitive function - and increase the risk of attention deficit hyperactivity disorder in children, according to a new Rutgers study. [More]
Study helps develop better understanding of how dopamine influences behaviour

Study helps develop better understanding of how dopamine influences behaviour

Scientists studying hatchling fish have made a new advance in studying a chemical in the brain that impacts on movement. [More]
Loyola psychiatrist offers tips to cope with football withdrawal symptoms

Loyola psychiatrist offers tips to cope with football withdrawal symptoms

When the football seasons with the final play of Sunday's Super Bowl, some fans may begin to feel withdrawal symptoms. [More]
Ghrelin hormone supplement increases sexual activity in mice

Ghrelin hormone supplement increases sexual activity in mice

Swedish studies show that mice that receive a supplement of the "appetite hormone" ghrelin increase their sexual activity. Whether the hormone has the same impact on humans is unknown - but if it does, the researchers may have found the key to future treatments for sex abuse. [More]
Researchers test pocket stimulator on patients with Parkinson's disease

Researchers test pocket stimulator on patients with Parkinson's disease

Parkinson's disease is a slowly degenerative neurological disease that is expressed as impaired motor control, tremors, stiffness and, in later stages, problems with balance. [More]
Gedeon Richter, Actavis report positive top line results from cariprazine Phase III trial

Gedeon Richter, Actavis report positive top line results from cariprazine Phase III trial

Gedeon Richter Plc. and Actavis plc today announced positive results from a Phase III trial evaluating the efficacy and safety of cariprazine in the prevention of relapse in patients with schizophrenia. [More]
University of Copenhagen researchers move closer to developing antidote against cocaine addiction

University of Copenhagen researchers move closer to developing antidote against cocaine addiction

Researchers at the University of Copenhagen have gained new insight into the mechanism behind a protein dopamine transporter that could help in the development of future medical treatment against cocaine addiction. [More]
Altos Therapeutics announces issuance of Mexican patent covering dopamine D2/D3 drug candidates

Altos Therapeutics announces issuance of Mexican patent covering dopamine D2/D3 drug candidates

Altos Therapeutics, LLC announced today that the Mexican Institute of Industrial Property has issued Patent Number 323020 titled, "D2 Antagonists, Methods of Synthesis and Methods of Use". The patent broadly and specifically covers the company's dopamine D2/D3 drug candidates, their pharmaceutical compositions, and their use to treat a number of important gastrointestinal conditions in humans, such as gastroparesis. [More]
New UCLA study sheds light on why some people develop PTSD

New UCLA study sheds light on why some people develop PTSD

Why do some people develop post-traumatic stress disorder (PTSD) while others who suffered the same ordeal do not? A new UCLA discovery may shed light on the answer. [More]
Two leading biotechnology companies collaborate to gain further understanding of Parkinson’s disease

Two leading biotechnology companies collaborate to gain further understanding of Parkinson’s disease

This week 23andMe (a genetic testing company) and Genentech (medical research company of the Roche Group) agreed a collaboration to undertake whole genome sequencing for 3,000 patients with Parkinson’s disease. The genetic information will be collected by 23andMe and used by Genentech to identify new therapeutic targets for treating Parkinson’s disease. [More]
FDA approves RYTARY for Parkinson's disease treatment

FDA approves RYTARY for Parkinson's disease treatment

Impax Pharmaceuticals, a division of Impax Laboratories, Inc., today announced that the U.S. Food and Drug Administration approved RYTARY, an extended-release oral capsule formulation of carbidopa-levodopa, for the treatment of Parkinson's disease, post-encephalitic parkinsonism, and parkinsonism that may follow carbon monoxide intoxication and / or manganese intoxication. [More]
FDA receives Actavis' NDA resubmission for cariprazine

FDA receives Actavis' NDA resubmission for cariprazine

Actavis plc (NYSE: ACT) and Gedeon Richter Plc. today announced that the U.S. Food and Drug Administration (FDA) has acknowledged receipt of Actavis' New Drug Application (NDA) resubmission for its atypical antipsychotic cariprazine, a potent dopamine D3/D2 receptor partial agonist with preferential binding to D3 receptors. [More]
New findings may lay groundwork of novel treatment for people with Huntington's disease

New findings may lay groundwork of novel treatment for people with Huntington's disease

By adjusting the levels of a key signaling protein, researchers improved motor function and brain abnormalities in experimental animals with a form of Huntington's disease, a severe neurodegenerative disorder. [More]
Newron, Zambon announce re-submission of safinamide NDA to FDA

Newron, Zambon announce re-submission of safinamide NDA to FDA

Newron Pharmaceuticals S.p.A., a research and development company focused on novel CNS and pain therapies, and its commercial and development partner Zambon S.p.A., an international pharmaceutical company, announced today that the NDA for safinamide has been re-submitted to the US FDA. [More]
Eating habits and brain chemistry: an interview with Dr Kevin Hall

Eating habits and brain chemistry: an interview with Dr Kevin Hall

Several times every day, we choose when, where, what, with whom, and how much to eat. Many of these eating decisions have become automatic and don’t require cognitive effort. [More]
Mexican study shows mobility can be restored in patients with Parkinson's disease

Mexican study shows mobility can be restored in patients with Parkinson's disease

Mexican scientists demonstrated experimentally, with adult rats, that mobility can be restored in patients with Parkinson's disease, the major degenerative disease of the motor system worldwide. [More]
Researchers examining new antioxidant-based therapeutic approaches to hypertension

Researchers examining new antioxidant-based therapeutic approaches to hypertension

High blood pressure affects more than 70 million Americans and is a major risk factor for stroke, heart failure and other renal and cardiovascular diseases. Two University of Houston College of Pharmacy researchers are examining the role of intrinsic antioxidant pathways in mitigating hypertension. [More]
IRCM researchers uncover mechanism that regulates dopamine levels in the brain

IRCM researchers uncover mechanism that regulates dopamine levels in the brain

Researchers in Montréal led by Jacques Drouin, D.Sc., uncovered a mechanism regulating dopamine levels in the brain by working on a mouse model of late onset Parkinson's disease. [More]