Dopamine News and Research

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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.

Molecular link between intelligence and curiosity discovered

Scientists from the Samuel Lunenfeld Research Institute of Mount Sinai Hospital in Toronto have discovered a molecular link between intelligence and curiosity, which may lead to the development of drugs to improve learning.

17 Sep 2009

Legislation grants improve research and employment initiatives in Indiana University medical campus

Indiana University School of Medicine scientists have received more than $12 million in grants funded by the federal economic stimulus legislation, funding that has bolstered both research initiatives and research employment on the medical center campus.

16 Sep 2009

Identification of genetic risk factors may lead to new treatments for ADHD

The majority of patients affected by ADHD in childhood carry ADHD symptoms, or even the full ADHD-diagnosis, into adulthood.

15 Sep 2009

Preliminary results of Phase 2b clinical trial of AZ-104 announced by Alexza Pharmaceuticals

Alexza Pharmaceuticals, Inc. (Nasdaq: ALXA) today announced preliminary results from its 366 patient Phase 2b clinical trial of AZ-104 (Staccato(R) loxapine) in patients with migraine headache.

14 Sep 2009

Final results of SAPHRIS clinical study released

Schering-Plough Corporation today reported final results of a SAPHRIS(R) (asenapine) long-term schizophrenia relapse prevention clinical study.

14 Sep 2009

Schizophrenia: A major public health problem

Schizophrenia is a major public health problem. Affecting almost 1% of the world's population, it takes an enormous economic and social toll in addition to the distress, dysfunction, disability and mortality for those afflicted with this disease. Elements of the disease are present from birth, other aspects emerge during developmental years, and the illness becomes fully expressed in early adulthood with long-lasting implications for most patients.

14 Sep 2009

Monoamine oxidases responsible for personality and behaviour

Antisocial and aggressive behaviours represent a widespread and expensive social problem. Recent research has convincingly shown that there is a strong interaction between genetic inheritance and environment for development of personality and behaviour.

14 Sep 2009

FDA approves Salix' METOZOLV ODT for treating diabetic gastroparesis

Salix Pharmaceuticals, Ltd. (NASDAQ:SLXP) today announced the U.S. Food and Drug Administration (FDA) has granted marketing approval for METOZOLV™ ODT (metoclopramide HCl) 5mg and 10mg orally disintegrating tablets. METOZOLV ODT is indicated for the relief of symptoms in adults associated with acute and recurrent diabetic gastroparesis and for the treatment of short-term therapy (4-12 weeks) for adults with symptomatic documented gastroesophageal reflux disease (GERD) who fail to respond to conventional therapy1.

9 Sep 2009

Brown University neuroscience professor awarded EUREKA grant

Brown University neuroscience professor Gilad Barnea will receive a nearly $1.3 million, four-year federal grant toward development of a method to selectively monitor the activation of each of the five receptors for the neurotransmitter dopamine in the brain.

4 Sep 2009

Higher education levels associated with an earlier need for symptomatic treatment of Parkinson's disease

Individuals who have higher levels of education and who are more impaired by Parkinson's disease appear to require treatment for their symptoms earlier than do other patients, according to a report posted online today that will appear in the September print issue of Archives of Neurology, one of the JAMA/Archives journals.

2 Sep 2009

Antibiotic functioning as an off switch being developed for gene therapy of Parkinson's disease

A common antibiotic can function as an "off switch" for a gene therapy being developed for Parkinson's disease, according to University of Florida researchers writing online in advance of September's Molecular Therapy.

29 Aug 2009

Scientists study the impact of nerve growth factors for treating Parkinson's disease

Scientists in the Academy of Finland's Neuroscience Research Programme have reported promising new results with potential implications for the treatment of Parkinson's disease. They have been studying the impacts of nerve growth factors in the treatment of PD, and their latest results show that a certain growth factor can be used to halt the progress of damage brought on by a nerve poison and possibly even restore the function of damaged cells.

28 Aug 2009

Researches report new results that may help in better treament for patients with Parkinson's disease

28 Aug 2009

Ipsen Group announces first-half 2009 financial results

The Board of Directors of Ipsen (Paris:IPN), chaired by Jean-Luc Bélingard, met on 27 August 2009 to review the Group’s results for the first half 2009, published today. The full 2009 half year financial report is available on the Group’s web site, www.ipsen.com, under the Regulated Information heading in the Investor Relations pages.

28 Aug 2009

Positive results obtained from phase 3 clinical trial of lurasidone for treating schizophrenia

Dainippon Sumitomo Pharma Co., Ltd., (DSP) announced today positive results from PEARL 2 - a phase 3 clinical trial of lurasidone for the treatment of patients with schizophrenia. In this trial, both lurasidone 40 and 120 mg/day were significantly more effective than placebo for the treatment of schizophrenia. Lurasidone was well-tolerated with an overall discontinuation rate that was similar to placebo.

26 Aug 2009

Neurogen stockholders to receive $11 million in Ligand Pharmaceuticals common stock as part of acquisition deal

Ligand Pharmaceuticals Incorporated (NASDAQ:LGND) and Neurogen Corporation (NASDAQ:NRGN) announced today they have entered into a definitive merger agreement under which Ligand will acquire Neurogen. Under the transaction, Neurogen stockholders will receive an estimated $11 million in Ligand common stock and will be granted Contingent Value Rights (“CVRs”) under four CVR agreements.

25 Aug 2009

New research results reveal that two Parkinson genes can maintain the mitochondrial functions

Parkinson's disease is caused by the degeneration of neurons in the midbrain. The mechanisms leading to the loss of these neurons, however, are largely unknown. Recent research revealed that about ten per cent of cases are caused by defects in so-called Parkinson-associated genes. Furthermore, mitochondria, the cellular powerhouses, seem to play a major role. New results from researchers at the LMU Munich under the lead of associate professor Dr. Konstanze Winklhofer and Professor Christian Haass connect both phenomena, showing that two Parkinson genes maintain the function of mitochondria.

24 Aug 2009

Biovail enters into an agreement with Santhera to develop and market JP-1730/fipamezole drug

Biovail Corporation (NYSE:BVF) (TSX:BVF) today announced that its subsidiary, Biovail Laboratories International SRL (BLS), has entered into an agreement with Santhera Pharmaceuticals (Switzerland) Ltd., a subsidiary of Santhera Pharmaceuticals Holding AG (SIX: SANN) to acquire the U.S. and Canadian rights to develop and commercialize Santhera’s JP-1730/fipamezole for the treatment of Dyskinesia in Parkinson’s Disease (DPD). JP-1730/ fipamezole is a first-in-class compound that, in a recent Phase IIb study, displayed the potential to reduce levodopa-induced dyskinesia.

24 Aug 2009

Role of HPRT genes detected in Lesch Nyan X-linked inherited disorders

A study from the Center for Molecular Genetics at the University of California, San Diego School of Medicine shows that a gene called HPRT plays an important role in setting the program by which primitive or precursor cells decide to become normal nerve cells in the human brain. This unconventional view of metabolic genes known as "housekeeping" genes is now online at the journal Molecular Therapy.

21 Aug 2009

Running and addiction

Although exercise is good for your health, extreme exercise may be physically addicting. Rats given a drug that produces withdrawal in heroin addicts went into withdrawal after running excessively in exercise wheels, according to new research. Rats that ran the hardest had the most severe withdrawal symptoms.

17 Aug 2009

Dopamine News and Research

Further Reading

Molecular link between intelligence and curiosity discovered

Legislation grants improve research and employment initiatives in Indiana University medical campus

Identification of genetic risk factors may lead to new treatments for ADHD

Preliminary results of Phase 2b clinical trial of AZ-104 announced by Alexza Pharmaceuticals

Final results of SAPHRIS clinical study released

Schizophrenia: A major public health problem

Monoamine oxidases responsible for personality and behaviour

FDA approves Salix' METOZOLV ODT for treating diabetic gastroparesis

Brown University neuroscience professor awarded EUREKA grant

Higher education levels associated with an earlier need for symptomatic treatment of Parkinson's disease

Antibiotic functioning as an off switch being developed for gene therapy of Parkinson's disease

Scientists study the impact of nerve growth factors for treating Parkinson's disease

Researches report new results that may help in better treament for patients with Parkinson's disease

Ipsen Group announces first-half 2009 financial results

Positive results obtained from phase 3 clinical trial of lurasidone for treating schizophrenia

Neurogen stockholders to receive $11 million in Ligand Pharmaceuticals common stock as part of acquisition deal

New research results reveal that two Parkinson genes can maintain the mitochondrial functions

Biovail enters into an agreement with Santhera to develop and market JP-1730/fipamezole drug

Role of HPRT genes detected in Lesch Nyan X-linked inherited disorders

Running and addiction

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

From Puberty to Menopause: Clue’s CEO, Audrey Tsang on the Power of Femtech

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