Why dopamine freezes parkinson patients and drives drug addicts
CHICAGO -- Parkinson's disease and drug addiction are polar opposite diseases, but both depend upon dopamine in the brain. Parkinson's patients don't have enough of it; drug addicts get too much of it. Although the importance of dopamine in these disorders has been well known, the way it works has...Identification of dopamine 'mother cells' could lead to future Parkinson's treatments
Mother cells which produce the neurons affected by Parkinsons disease have been identified by scientists, according to new research published in the journal Glia. The new discovery could pave the way for future treatments for the disease, including the possibility of growing new neurons, and t...Food restriction increases dopamine receptor levels in obese rats
UPTON, NY -- A brain-imaging study of genetically obese rats conducted at the U.S. Department of Energy's Brookhaven National Laboratory provides more evidence that dopamine - a brain chemical associated with reward, pleasure, movement, and motivation - plays a role in obesity. The scientists foun...Risk takers, drug abusers driven by decreased ability to process dopamine
NASHVILLE, Tenn.--For risk-takers and impulsive people, New Year's resolutions often include being more careful, spending more frugally and cutting back on dangerous behavior, such as drug use. But new research from Vanderbilt finds that these individuals--labeled as novelty seekers by psychologis...Antidepressants Can Increase Depression, Impulsivity and Suicide Risk by Decreasing Dopamine
TARPON SPRINGS, Fla., Feb. 8 /PRNewswire/ -- Antidepressant medications which increase serotonin neurotransmitter levels can depress dopamine levels. Decreasing dopamine level can increase depression, impulsivity and suicide risk in depressed patients, who were previously dopamine deficient. "...New insight for dopamine transporter
Researchers of Yale University had discovered a changed version of dopamine// transporter in healthy persons with genetical variations that may be associated with substance abuse or attention deficit hyperactivity disorder (ADHD). Dopamine is a protein produced in the hypothalamus and some a...Breast Cancer risk for women on dopamine antagonists
A study, by researchers of the Harvard Medical School, of more than 100,000 women, indicates that women who use dopamine antagonists, i.e. anti-psychotics, for either psychiatric// illnesses or other conditions, may have an increased risk of breast cancer. The study involved about 52,000 women...Dementia induced and blocked in Parkinson's fly model
...stem of the brain, the part of the brain that produces the neurotransmitter dopamine and is at the center of the damage caused by Parkinson's. "In healthy flies, sleep deprivation decreases dopamine receptor production and causes temporary learning impairments that are full...Older Diabetics Should Avoid Dementia Meds
...ne diabetes treatment and was strikingly high during the initial period of antipsychotic therapy." Other studies suggest that the neurotransmitter dopamine has a role in keeping blood glucose levels under control. The researchers noted that first-time antipsychotic users may get a disruption in this syste...Hormones May Affect Neurological Disease Risk
... found that a number of estrogens acting through their receptors affect the dopamine transporter (DAT). dopamine is a neurotransmitter in the brain that plays an important role in normal f...ADHD Genes Found; Known to Play Roles in Neurodevelopment
...curred in a gene for a glutamate receptor. Glutamate is a neurotransmitter, a protein that carries signals in the brain. While ADHD medications act on dopamine and serotonin, which are also neurotransmitters, this new finding may suggest an important role for glutamate as well, at least for some ADHD patients...Dainippon Sumitomo Pharma Announces Lurasidone Phase III Data in Patients With Schizophrenia
...nd developed by Dainippon Sumitomo Pharma Co., Ltd., lurasidone is a novel compound with a unique receptor-binding profile including high affinity for dopamine D(2), serotonin 5-HT(2A), 5-HT(7), 5-HT(1A), and noradrenalin alpha(2c) receptors. Lurasidone has low affinity for histamine H(1), and cholinergic M(1...Addrenex Pharmaceuticals Expands Product Pipeline by Licensing New Drug to Treat Narcolepsy
...sion. According to Khayrallah, the compound has numerous potential applications because it is thought to engage multiple neurotransmitters, including dopamine and noradrenalin, that play a role in a variety of disorders. Under the terms of the contract, Addrenex will pay licensing fees and royalties to...FDA Approves Vanda Pharmaceuticals' Fanapt(TM) for the Treatment of Schizophrenia
...apt(TM) to placebo and active control in patients with schizophrenia, as well as safety data from more than 3,000 patients. Fanapt(TM) is a mixed dopamine D2 / serotonin 5HT2A receptor antagonist, and belongs to the class of atypical antipsychotics. "The approval of Fanapt(TM) marks a new opportuni...Parkinson's Disease Medication Triggers Destructive Behaviors
...blished in 2005 that reported a connection between dopamine agonist medications and compulsive gambling or hypersexuality. dopamine agonists are a class of drugs that include pramipe...up included 267 patients. Of those, 66 were taking dopamine agonists for their Parkinson's disease. Of those 6...Phasic firing of dopamine neurons is key to brain's prediction of rewards
San Antonio Researchers are one step closer to understanding the neurobiology that allows people to successfully learn motivated behaviors by associating environmental cues with rewarding outcomes, according to a study published yesterday in the Proceedings of the National Academy of Sciences ' ...Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
PASADENA, Calif.--Genetically modifying a receptor found on the neurons that produce the neurotransmitter dopamine has given California Institute of Technology (Caltech) researchers a unique glimpse into the workings of the brain's dopamine system--as well as a new target for treating diseases tha...Unlocking mystery of why dopamine freezes Parkinson's patients
CHICAGO -- Parkinson's disease and drug addiction are polar opposite diseases, but both depend upon dopamine in the brain. Parkinson's patients don't have enough of it; drug addicts get too much of it. Although the importance of dopamine in these disorders has been well known, the way it works has...The birth and death of dopamine neurons: A new model for neurodegeneration
The gradual loss of dopamine neurons is a hallmark of many neurodegenerative diseases - Parkinsons Disease chief among them. Stem cell biology and regenerative medicine offer novel therapies for the restoration of dopamine neurons. This week in the online open-access journal PLoS Biology Dr. Raja...Implanting dopamine generators in brain cells obtains improvement in Parkinson's in monkeys
Implanting dopamine generators (dopaminergics) in brain cells has produced improvement in the symptoms in Parkinson's, according to the results of tests carried out with monkeys by the Navarra University Hospital, led by Dr María Rosario Luquin Piudo, neurologist at the Hospital and at the other Na...New dopamine brain target discovered
A team of Canadian researchers, lead by Dr. Susan George and Dr. Brian O'Dowd at the Centre for Addiction and Mental health (CAMH), discovered a distinct dopamine signalling complex in the brain. Composed of two different types of dopamine receptors, this novel target may have a significant role i...High dopamine transporter levels not correlated with ADHD
Results from a brain-imaging study conducted at the U.S. Department of Energy's Brookhaven National Laboratory in collaboration with Mount Sinai School of Medicine in New York indicate that levels of a brain protein proposed as a diagnostic marker for attention-deficit hyperactivity disorder (ADHD)...Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method
For clinicians, the ability to look routinely inside the body and see -- at the level of the cell -- how it confronts disease is a distant dream. But in a series of experiments with genetically engineered mice, a team of researchers from the Howard Hughes Medical Institute (HHMI) at the University ...Flies on speed offer insight into the roles of dopamine in sleep and arousal
Methamphetamine, the drug of choice for long-distance truckers and college students pulling all-nighters, appears to do a similar trick for fruit flies, too. This finding is one of several in a new study that demonstrates a critical role for the neurotransmitter dopamine in the modulation of sleep,...Discovery of New Dopamine Action May Yield Alternative Psychiatric Drugs
Duke University Medical Center researchers have discovered a new mechanism by which chronically high levels of the neurotransmitter dopamine exert their effects on the brain. Normally associated with triggering feelings of pleasure, excess concentrations of dopamine underlie schizophrenia, attentio...Novel drug discovery tool could identify promising new therapies for Parkinson's disease
...y shaking, slowed movement, stiffened muscles, and impaired balance. The neurons normally produce a chemical called dopamine. A synthetic precursor of dopamine called L-DOPA or drugs that mimic dopamine's action can provide symptomatic relief from Parkinson's disease. Unfortunately, these drugs lose much of t...Neurocrine Biosciences Reports First Quarter 2009 Results
...hly selective VMAT2 inhibitor that is effective in regulating the levels of dopamine release during nerve communication, while at the same time having minimal i...dive dyskinesia, and Huntington's disease. Additionally, the modulation of dopamine pathways may also be useful for patients suffering from schizophrenia. ...Ceregene Announces Clinical Data From Phase 2 Clinical Trial of CERE-120 for Parkinson's Disease
...people in the United States. Its main symptoms are caused by a reduction in dopamine containing nerve cells of the midbrain. dopamine is a neurotransmitter involved in controlling movement and coordination, so...Circassia Acquires North American and Japanese Rights to Dopexamine
...ospital for 17.5 days on average compared with 29.5 days (p = 0.001) for those who received standard therapy. Dopexamine is a beta2 adrenoceptor and dopamine receptor agonist, which is approved in Europe in indications related to heart failure. Dopexamine is not approved for use currently in the US, Canada ...Rabbit Anti-Human D4 Dopamine Receptor Antibody, Unconjugated from Sigma-Aldrich
Description: Immunogen: synthetic peptide corresponding to the third cytoplasmic loop of human D 4 dopamine receptor, conjugated to KLH. The immunizing peptide has 79% homology with the rat and mouse gene. Physical form: Solution in phosphate buffered saline, pH 7.7, containing 0.01% sodium azide. Titertest ...Anti-Dopamine D2 / D3 Receptor Polyclonal Antibody, Unconjugated from CHEMICON
Description:... dopamine D2 and D3 receptor, human and possibly mouse. AB1502 detects 40 ng of dopamine receptor peptide by ELISA. AB1502 is not neutralizing....Mouse Dopaminergic Neuron Differentiation Kit, 2nd Generation from R&D Systems
Description:...ouse embryonic stem cells to dopaminergic neurons. dopamine cell bodies exist in the midbrain, where they are ...rgic (DA) neurons give rise to extensive forebrain dopamine innervation ( e.g.projections to the caudate nucle...l hippocampus). The basic organization of midbrain dopamine neurons and their projections is consistent across...