Dopaminergic News and Research

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Alpha-synuclein gene silencing effective for treating neurodegenerative disorders: Research

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, and collaborators at The Parkinson's Institute and the Mayo Clinic have published new research findings in the journal Public Library of Science (PLoS). The new data show effective silencing of the alpha-synuclein gene with an RNAi therapeutic administered directly to the substantia nigra in the CNS of non-human primates.

24 Aug 2010

Human induced pluripotent stem cells help to treat Parkinson’s disease: Research

Researchers at the Buck Institute for Age Research have successfully used human induced pluripotent stem cells (iPSCs) to treat rodents afflicted with Parkinson's Disease (PD). The research, which validates a scalable protocol that the same group had previously developed, can be used to manufacture the type of neurons needed to treat the disease and paves the way for the use of iPSC's in various biomedical applications. Results of the research, from the laboratory of Buck faculty Xianmin Zeng, Ph.D., are published August 16, 2010 in the on-line edition of the journal Stem Cells.

17 Aug 2010

TEMPO study recommends early administration of Azilect in PD patients

Teva Pharmaceutical Industries Ltd. and H. Lundbeck A/S (Lundbeck) today announced newly published long-term data on Azilect(rasagiline tablets) from the TEMPO study and its open-label extension. The findings confirm the long-term efficacy, safety and tolerability of Azilect® in patients with Parkinson's disease (PD) and further demonstrate the benefits obtained with early treatment initiation. The data was published in the June 2010 issue of the International Journal of Neuroscience.

6 Aug 2010

Placebo response in Parkinson's disease treatment varies with patient expectations

Individuals with Parkinson's disease were more likely to have a neurochemical response to a placebo medication if they were told they had higher odds of receiving an active drug, according to a report in the August issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

3 Aug 2010

Loss of key nerve cells cause Parkinson's disease: Research

Scientists at the Stanford University School of Medicine have identified a molecular pathway responsible for the death of key nerve cells whose loss causes Parkinson's disease. This discovery not only may explain how a genetic mutation linked to Parkinson's causes the cells' death, but could also open the door to new therapeutic approaches for the malady.

29 Jul 2010

Dopamine-releasing cells essential for detected odor to be associated with negative experience: Study

It is common sense that it's worth learning what things and situations are harmful to us if we want to have a long and healthy life. For example, after getting a nasty sunburn, we learn our lesson, and apply sun cream before going sunbathing next time. The importance of such learned avoidance strategies is reflected by the fact that even fruit flies possess them.

27 Jul 2010

Brain neuron activity can signal initiation, termination of behavioural sequences: Study

Rui Costa, Principal Investigator of the Champalimaud Neuroscience Programme at the Instituto Gulbenkian de Ciência, and Xin Jin, of the National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, describe in the latest issue of the journal Nature, that the activity of certain neurons in the brain can signal the initiation and termination of behavioural sequences we learn anew. Furthermore, they found that this brain activity is essential for learning and executing novel action sequences, many times compromised in patients suffering from disorders such as Parkinson's or Huntington's.

22 Jul 2010

Study findings may provide insight into extreme behaviors associated with rejection

The pain and anguish of rejection by a romantic partner may be the result of activity in parts of the brain associated with motivation, reward and addiction cravings, according to a study published in the July issue of the Journal of Neurophysiology.

7 Jul 2010

Rejection by romantic partner associated with brain's motivation, reward and addiction craving centers

Researchers have linked rejection by a romantic partner to brain activity associated with motivation, reward and addiction cravings, according to a study published in the July issue of the Journal of Neurophysiology. Lucy Brown, Ph.D., clinical professor in the Saul R. Korey Department of Neurology and of neuroscience at Albert Einstein College of Medicine of Yeshiva University, is the corresponding author of the study.

7 Jul 2010

Parkinson's Disease Foundation awards $1.2M for research programs

The Parkinson's Disease Foundation (PDF) is pleased to announce awards totaling $1.2 million for research projects designed to understand the cause(s) of and find a cure for Parkinson's disease (PD).

2 Jul 2010

Neurologix announces positive results from Phase 2 trial of NLX-P101 for advanced PD

Neurologix, Inc., today announced positive results in a Phase 2 trial of its investigational gene therapy for advanced Parkinson's disease, NLX-P101. Study participants who received NLX-P101 experienced statistically significant and clinically meaningful improvements in off-medication motor scores compared to control subjects who received sham surgery.

22 Jun 2010

Olfactory function tests could help in treating patient in early stages of PD

A fast, simple and non invasive test of the ability to smell may be an important tool to screen people who are likely to develop Parkinson's disease, in which motor symptoms only become evident at a later stage of the disease, a German scientist will tell the annual conference of the European Society of Human Genetics today (Saturday).

14 Jun 2010

Enrollment and dosing in NeuroDerm's Phase I clinical trial of ND0611 completed

NeuroDerm, Ltd. announced today the successful enrollment and dosing in its Phase I clinical trial of ND0611. ND0611, a proprietary drug formula administered via a dermal patch, is designed to maintain continuous therapeutic levodopa concentrations for improving the treatment of Parkinson's disease.

1 Jun 2010

Study: Cell-based strategy for treating neurodegenerative diseases

UCSF scientists have used a novel cell-based strategy to treat motor symptoms in rats with a disease designed to mimic Parkinson's disease.

26 Mar 2010

Turning microRNAs into novel drugs

Researchers around the globe are working on turning microRNAs, over 5,000 of which already have been identified, into novel drugs for a wide range of applications, reports Genetic Engineering & Biotechnology News (GEN). These noncoding single-stranded RNAs act through binding to complementary mRNA sequences, thus preventing their translation into protein or accelerating mRNA breakdown, according to the March 15 issue of GEN.

20 Mar 2010

NeuroSearch's MermaiHD study supports potential Huntington's disease modifying properties of Huntexil

NeuroSearch today announced that further analysis of the data from the MermaiHD study with Huntexil(R) (pridopidine) for the treatment of Huntington's disease supports potential disease modifying properties of the drug.

11 Mar 2010

SRI International establishes new Neurodegenerative Diseases Research Program

SRI International, an independent nonprofit research and development institute, announced today that a new Neurodegenerative Diseases Research Program has been established within its Center for Health Sciences. This new SRI group of neuroscientists and researchers working at the cutting edge of science brings $6.2 million of funding from the National Institutes of Health (NIH), including the National Institute of Neurological Disorders and Stroke (NINDS), the National Institute of Environmental Health Sciences (NIEHS), and National Institute of General Medical Sciences (NIGMS).

19 Feb 2010

FDA issues Complete Response Letter for Horizant in treatment of RLS

GlaxoSmithKline and XenoPort, Inc. Wednesday received a Complete Response letter from the U.S. Food and Drug Administration (FDA) regarding the New Drug Application (NDA) for Horizant™ (gabapentin enacarbil) Extended-Release Tablets, an investigational non-dopaminergic treatment for moderate-to-severe primary Restless Legs Syndrome (RLS).

18 Feb 2010

New genetic risk factor for Parkinson's disease identified

An international team of doctors and human geneticists has identified a new genetic risk factor for Parkinson's disease. The institutions involved in the study were the Institute of Human Genetics of Helmholtz Zentrum München and Technische Universität München, the Neurological Clinic of Ludwig-Maximilians-Universität Munich (LMU) and the Mitochondrial Research Group of Newcastle University, Newcastle upon Tyne, UK.

18 Jan 2010

Molecules capable of reversing brain abnormalities in PD identified

Scientists identified several molecules capable of reversing the brain abnormalities of Parkinson's disease (PD), while also uncovering new clues for its origin in a study just published in the journal Disease Models and Mechanisms. PD is characterised by abnormal deposits of a brain protein called alpha-synuclein throughout the damaged brain regions, but exactly what they do there is not clear. The fact that their numbers and spreading are associated disease progression has made them, however, a major point of interest in PD research.