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.
Study finds link between pyrethroid pesticide exposure and ADHD in children, teens

Study finds link between pyrethroid pesticide exposure and ADHD in children, teens

A new study links a commonly used household pesticide with attention deficit hyperactivity disorder (ADHD) in children and young teens. [More]
MIT researchers find neural circuit that appears to cause decision-making in approach-avoidance conflict

MIT researchers find neural circuit that appears to cause decision-making in approach-avoidance conflict

Some decisions arouse far more anxiety than others. Among the most anxiety-provoking are those that involve options with both positive and negative elements, such choosing to take a higher-paying job in a city far from family and friends, versus choosing to stay put with less pay. [More]
Scorpion venom could kill cancer cells

Scorpion venom could kill cancer cells

When the toxin invades channels in the cells with this disease produces cellular damage until killing them. [More]
Dopamine-producing neurons affect crucial brain functions

Dopamine-producing neurons affect crucial brain functions

Nerve cells that produce dopamine for the purpose of transmitting signals to other cells affect numerous crucial brain functions. [More]
Brain protein plays key role in controlling binge drinking

Brain protein plays key role in controlling binge drinking

Scientists at The Scripps Research Institute have discovered that a brain protein has a key role in controlling binge drinking in animal models. They found that deleting the gene for this protein in mice ramped up alcohol consumption and prevented the brain from signaling the rewarding properties of alcohol. [More]
Discovery paves way for developing treatments for people addicted to cocaine, amphetamines

Discovery paves way for developing treatments for people addicted to cocaine, amphetamines

In a major advance in the field of neuropsychiatry, researchers in the Vollum Institute at Oregon Health & Science University have illuminated how cocaine and amphetamines disrupt the normal functioning of the dopamine transporter in the brain. [More]
Study sheds light on specific roles for dopamine in reward process

Study sheds light on specific roles for dopamine in reward process

Dopamine is the chemical messenger in the brain most closely associated with pleasure and reward. Recent scientific advances now shed light on precise roles for dopamine in the reward process. [More]
New method may help determine potential indicator of stress, neurological disorders

New method may help determine potential indicator of stress, neurological disorders

A research collaboration between the universities of Oslo and Aarhus has resulted in the development of a new method with diagnostic potential. The new method that combines phase extraction with an enzymatic reaction may eventually be used for an improved and faster screening analysis of isatin as a potential indicator of stress and neurological disorders. [More]
Orexigen Therapeutics provides update on business and financial results for Q1 2015

Orexigen Therapeutics provides update on business and financial results for Q1 2015

Orexigen Therapeutics, Inc. today announced business and financial results for the first quarter ended March 31, 2015. [More]
Specific brain chemical may play role in promoting chronic pain

Specific brain chemical may play role in promoting chronic pain

A chemical in the brain typically associated with cognition, movement and reward-motivation behavior -- among others -- may also play a role in promoting chronic pain, according to new research at The University of Texas at Dallas. [More]
Acacia Pharma reports positive results from APD403 Phase 2 study in CINV

Acacia Pharma reports positive results from APD403 Phase 2 study in CINV

Acacia Pharma Ltd, a specialty pharmaceutical company developing supportive care products for post-surgical and cancer patients in the US and international markets, announces positive results from its Phase 2 study of APD403 in the prevention of chemotherapy-induced nausea & vomiting (CINV). [More]
Researchers discover key mechanism in neural death that causes Parkinson's disease

Researchers discover key mechanism in neural death that causes Parkinson's disease

In studying the molecular biology of brain development, a team of researchers led by Ludwig Stockholm director Thomas Perlmann has discovered how disruption of a developmental mechanism alters the very nerve cells that are most affected in Parkinson's disease. [More]
Researchers describe natural mechanism that helps repair lesions in teeth

Researchers describe natural mechanism that helps repair lesions in teeth

Researchers at Inserm and Paris Descartes University have just taken an important step in research on stem cells and dental repair. They have managed to isolate dental stem cell lines and to describe the natural mechanism by which they repair lesions in the teeth. This fundamental discovery will make it possible to initiate unprecedented therapeutic strategies to mobilise the resident dental stem cells and magnify their natural capacity for repair. [More]
Scientists report novel approach to reverse Parkinson's-like symptoms in rats

Scientists report novel approach to reverse Parkinson's-like symptoms in rats

As baby boomers age, the number of people diagnosed with Parkinson's disease is expected to increase. Patients who develop this disease usually start experiencing symptoms around age 60 or older. Currently, there's no cure, but scientists are reporting a novel approach that reversed Parkinson's-like symptoms in rats. [More]
New treatment shows promise in easing symptoms of Parkinson's disease

New treatment shows promise in easing symptoms of Parkinson's disease

To date, a cure for Parkinson's disease remains elusive for the more than 50,000 Americans diagnosed yearly, despite decades of intensive study. But a newly approved treatment that might help ease the symptoms of Parkinson's has shown remarkable promise. [More]
Acacia Pharma begins APD421 Phase 3 study in combination with standard anti-emetics for PONV

Acacia Pharma begins APD421 Phase 3 study in combination with standard anti-emetics for PONV

Acacia Pharma Ltd, the supportive care company developing products for US and international markets, announces the initiation of a Phase 3 study investigating APD421 in combination with standard anti-emetics, in the prevention of post-operative nausea & vomiting (PONV) in high-risk patients. PONV remains a clinically significant problem in patients undergoing surgery, despite the availability of a range of anti-emetic medications. [More]
UC Irvine professor explores the link between autism and ADHD

UC Irvine professor explores the link between autism and ADHD

For the better part of the last decade, a growing body of research has been revealing more and more similarities between attention-deficit/hyperactivity disorder and autism. [More]
Eisai, Arena complete two Phase 1 registrational trials for once-daily formulation of lorcaserin

Eisai, Arena complete two Phase 1 registrational trials for once-daily formulation of lorcaserin

Eisai Inc. and Arena Pharmaceuticals, Inc. today announced the completion of two Phase 1 registrational clinical trials that Eisai and Arena believe demonstrate bioequivalence of an investigational once-daily extended release formulation of lorcaserin, as compared to the twice-daily immediate release formulation approved by the US Food and Drug Administration and marketed as BELVIQ. [More]
Prevalence of ADHD decreases substantially as altitude increases

Prevalence of ADHD decreases substantially as altitude increases

Recent research has linked the thin air of higher elevations to increased rates of depression and suicide. But a new study shows there's also good news from up in the aspens and pines: The prevalence of attention deficit hyperactivity disorder (ADHD) decreases substantially as altitude increases. [More]
Scientists identify brain molecule that triggers schizophrenia-like behaviors, brain changes

Scientists identify brain molecule that triggers schizophrenia-like behaviors, brain changes

Scientists at The Scripps Research Institute have identified a molecule in the brain that triggers schizophrenia-like behaviors, brain changes and global gene expression in an animal model. The research gives scientists new tools for someday preventing or treating psychiatric disorders such as schizophrenia, bipolar disorder and autism. [More]
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