Dopaminergic News and Research

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Worm model to evaluate drugs for Parkinson's disease

Researchers at The University of Texas at Austin have devised a simple test, using dopamine-deficient worms, for identifying drugs that may help people with Parkinson's disease.

11 Nov 2011

Researchers discover how antipsychotic drugs manage symptoms of schizophrenia

The classic symptoms of schizophrenia - paranoia, hallucinations, the inability to function socially-can be managed with antipsychotic drugs. But exactly how these drugs work has long been a mystery.

25 Aug 2011

Risk of Parkinson's disease increases with traumatic brain injury and exposure to pesticide paraquat

Traumatic brain injury has entered the public's consciousness as the silent, signature wound brought back by many of our military warriors from Iraq and Afghanistan. But such injuries don't only happen in warfare, they happen to civilians too. Think car crashes, a slip and fall, two football players colliding helmet to helmet.

22 Aug 2011

Biochemist develops polymer material to convert precursor cells into functional neurones

Nervous system diseases are especially difficult to treat, as it is not easy to replace the parts of the neural puzzle which are damaged. The key is in developing functional neurons from in vitro-treated, cells but for this it is essential that the support on which these cells are based simulate the characteristics of the nervous system.

16 Aug 2011

Essential criteria for clinical diagnosis of restless legs syndrome

We've all experienced abnormal sensations in our legs at one time or another, but for as many as 10 percent of the US population, restless legs syndrome (RLS) is a daily occurrence. Characterized by throbbing, pulling, tingling, itching, and crawling sensations, RLS is a neurological disorder that produces unpleasant physical sensations in the extremities and an urge to counteract that sensation by movement.

21 Jul 2011

PDF announces $1M for 11 novel Parkinson's research projects

The Parkinson's Disease Foundation (PDF) is pleased to announce awards totaling more than $1 million for 11 novel investigator-initiated research projects designed to understand the causes of and find a cure for Parkinson's disease.

8 Jul 2011

Hunger hormone likely to cause stress-linked complex eating behaviors

We are one step closer to deciphering why some stressed people indulge in chocolate, mashed potatoes, ice cream and other high-calorie, high-fat comfort foods. UT Southwestern Medical Center-led findings, in a mouse study, suggest that ghrelin - the so-called "hunger hormone" - is involved in triggering this reaction to high stress situations.

24 Jun 2011

Platelet-derived growth factor-BB restores function in rats with Parkinson's disease

Few treatments for Parkinson's disease (PD) restore function for extended periods. In a new study published today in the inaugural issue of the Journal of Parkinson's Disease, an international group of researchers report that platelet-derived growth factor-BB (PDGF-BB) restored function in rodents and shows promise as a clinical candidate drug for treatment of PD.

10 Jun 2011

Abbott reports positive interim results from LCIG Phase III open-label study for advanced Parkinson's disease

Interim efficacy and safety results from a long-term, 54-week, Phase III open-label study of Abbott's investigational treatment for advanced Parkinson's disease showed that patients treated with levodopa-carbidopa intestinal gel (LCIG) for 12 weeks reported a decrease in "off" time and an increase in "on" time without troublesome dyskinesias.

9 Jun 2011

Exposure to pesticides near any workplace increases risk of Parkinson's disease

In April 2009, researchers at UCLA announced they had discovered a link between Parkinson's disease and two chemicals commonly sprayed on crops to fight pests.

27 May 2011

Heptares, Shire sign deal to develop novel A2A antagonist for CNS disease treatment

Heptares Therapeutics today announced it has signed an exclusive option agreement with Shire Pharmaceuticals for a novel adenosine A2A antagonist discovered by Heptares and currently in preclinical development.

9 May 2011

Omeros' PDE7 program expands addiction franchise

Omeros Corporation today announced that its phosphodiesterase 7 inhibitors demonstrated robust efficacy in animal models of nicotine addiction.

6 May 2011

Positive results from Shire's Vyvanse clinical trial in schizophrenia

Shire plc, the global specialty biopharmaceutical company, today announced positive results from a signal-finding study of Vyvanse(R) Capsules assessing its effect in a prospective examination of adults with negative symptom predominant schizophrenia.

28 Apr 2011

FDA approves Horizant Extended-Release Tablets for Restless Legs Syndrome

GlaxoSmithKline and XenoPort, Inc. announced Wednesday that the U.S. Food and Drug Administration (FDA) has approved Horizant™ (gabapentin enacarbil) Extended-Release Tablets for the treatment of moderate-to-severe primary Restless Legs Syndrome in adults. Horizant is not recommended for patients who are required to sleep during the daytime and remain awake at night.

7 Apr 2011

Researchers discover a type of 'cellular bilingualism' in brain

A team of researchers from the University of Montreal and McGill University have discovered a type of "cellular bilingualism" - a phenomenon that allows a single neuron to use two different methods of communication to exchange information.

18 Mar 2011

Omeros announces license agreement with Daiichi Sankyo for PDE7 inhibitors

Omeros Corporation today announced that its exclusive license to phosphodiesterase 7 inhibitors from Daiichi Sankyo Co., Ltd. has been amended to include addiction and compulsive disorders in the field of use.

23 Feb 2011

First evidence of neurotrophic factors improving status of degenerating dopamine neurons in Parkinson's brains

Ceregene, Inc., a biopharmaceutical company, reported today that its scientists and collaborators have published new experimental findings in support of its Parkinson's disease program which appeared as the lead article in the current issue of Movement Disorders. The publication reports the first evidence that gene transfer can provide targeted expression of a neurotrophic factor, i.e., neurturin or NRTN, intended to restore and preserve dying neurons.

17 Feb 2011

Scientists produce SR-3306 compound to protect brain cells from Parkinson's disease

Scientists from the Florida campus of The Scripps Research Institute have produced the first known compound to show significant effectiveness in protecting brain cells directly affected by Parkinson's disease, a progressive and fatal neurodegenerative disorder.

13 Feb 2011

Preladenant may offer new supplemental treatment for Parkinson's disease: Study

Preladenant, a non-dopaminergic medication, reduces off time in patients with Parkinson's disease receiving standard dopamine therapy, an international study led by the University of South Florida found.

11 Feb 2011

First three-dimensional projectome map of intact brain

It would be hard to understand how a city is organized without knowledge of the course of all of its streets. Scientists confront the same problem when trying to understand the functioning of the brain. In the case of vertebrates, we only have fragmentary knowledge of which nerve cells send their connections, so-called axons, into certain regions of the brain.

27 Jan 2011