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.
Perceived cost affects placebo response in Parkinson’s disease

Perceived cost affects placebo response in Parkinson’s disease

Patients with Parkinson’s disease may gain a greater benefit from a placebo treatment if they believe it to be expensive, research suggests. [More]
Chiasma closes $70 million Series E financing round

Chiasma closes $70 million Series E financing round

Chiasma, Inc., a U.S. privately-held biopharma company developing octreotide capsules, its lead product for the orphan condition acromegaly, today announced the closing of a $70 million Series E financing round. [More]
Study suggests that strong beliefs can treat nicotine addiction

Study suggests that strong beliefs can treat nicotine addiction

Two identical cigarettes led to a discovery by scientists at the Virginia Tech Carilion Research Institute. Study participants inhaled nicotine, yet they showed significantly different brain activity. Why the difference? Some subjects were told their cigarettes were nicotine free. [More]
UK scientists find new approach to treat Parkinson's disease

UK scientists find new approach to treat Parkinson's disease

UK scientists have developed a peptide that sticks to the protein that causes Parkinson's disease, stopping it from killing brain cells. The research highlights a potential new route for slowing the progress of this incurable disease. [More]
New study finds that statins may not reduce risk for Parkinson's disease

New study finds that statins may not reduce risk for Parkinson's disease

The use of statins may not be associated with lowering risk for Parkinson's disease, according to a new study led by researchers at Penn State College of Medicine and National Institute of Environmental Health Sciences. The findings cast doubts on reports suggesting that the cholesterol-lowering medications may protect against this neurodegenerative brain disorder. [More]
Korean scientists produce flexible, stable monolayers of protein-bound gold nanoparticles

Korean scientists produce flexible, stable monolayers of protein-bound gold nanoparticles

Free-standing nanoparticle films are of great interest for technical applications, such as the development of nanoelectronic devices. In the journal Angewandte Chemie, Korean scientists have introduced very flexible and stable monolayers of gold nanoparticles made by a self-assembly process based on protein aggregation. The films were used to coat wafers up to 10 cm in diameter. [More]
Nicotine metabolite supports learning, memory by amplifying action of primary chemical messenger

Nicotine metabolite supports learning, memory by amplifying action of primary chemical messenger

Nicotine's primary metabolite supports learning and memory by amplifying the action of a primary chemical messenger involved in both, researchers report. [More]
Actavis provides overview of standalone global pharmaceutical development pipeline

Actavis provides overview of standalone global pharmaceutical development pipeline

Actavis plc, during its Investor Meeting in New York, today provided a detailed look into its standalone global pharmaceutical development pipeline that supports the Company's long-term organic growth. The Company provided details regarding key development programs, including clinical data, development milestones and an overview of potential market opportunities, as well as an updated look at Actavis' world-class generics pipeline, which continues to hold an industry-leading position in First-to-File opportunities in the U.S. [More]

Recent clinical study offers hope for potential Parkinson's disease therapies

Researchers have long sought treatments that can slow the progression of Parkinson's disease. Current treatments have for decades been only symptomatic in nature, supplying the neurotransmitter dopamine, which the dying nerve cells can no longer produce. [More]
Creatine monohydrate disappoints in Parkinson’s disease

Creatine monohydrate disappoints in Parkinson’s disease

Creatine monohydrate fails to live up to its early promise in patients with Parkinson’s disease, show the results of the Long-term Study 1. [More]
Researchers identify RGS6 protein that controls both alcohol-seeking behavior and organ damage

Researchers identify RGS6 protein that controls both alcohol-seeking behavior and organ damage

What if there was a drug that could simultaneously curb a person's craving for alcohol while also protecting their heart and liver from alcohol's damaging effects? [More]
Chiasma announces publication of octreotide capsules Phase III study results in JCEM

Chiasma announces publication of octreotide capsules Phase III study results in JCEM

Chiasma Inc., a U.S. privately-held biopharma company, announced today that results from a multicenter Phase III study of the investigational new drug, octreotide capsules, were published online for early release on Feb. 9, ahead of print, by the Journal of Clinical Endocrinology & Metabolism. [More]
Study could lead to potential drug treatment for fighting addiction

Study could lead to potential drug treatment for fighting addiction

A research team led by the University of Colorado Boulder has discovered a mechanism in the brain that is key to making cocaine seem pleasurable, a finding that could lead to a drug treatment for fighting addiction. [More]
Two genetic mutations can interact to reduce risk for heart attack

Two genetic mutations can interact to reduce risk for heart attack

Researchers have determined that two mutations on a single gene can interact in a way that lowers the carrier's risk for a heart attack. [More]
New research on dopamine-containing neurons could pave way for treating neurological disorders

New research on dopamine-containing neurons could pave way for treating neurological disorders

Scientists studying hatchling fish have made a new advance in studying a chemical in the brain that impacts on movement. [More]
People's perceptions of cost of drug may affect how much they benefit from it

People's perceptions of cost of drug may affect how much they benefit from it

People's perceptions of the cost of a drug may affect how much they benefit from the drug, even when they are receiving only a placebo, according to a new study of people with Parkinson's disease published in the January 28, 2015 online issue of Neurology®, the medical journal of the American Academy of Neurology. [More]
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]
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