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.

Age, drugs, and disease alter sleep in Parkinson’s disease

Sleep patterns in patients with Parkinson’s disease are affected by age, disease severity, and dopamine agonists, German research indicates.

17 Aug 2012

Addiction to morphine and heroin can be blocked via brain's immune response

In a major breakthrough, an international team of scientists has proven that addiction to morphine and heroin can be blocked, while at the same time increasing pain relief.

15 Aug 2012

Schizophrenia and the immune system: an interview with Prof Cyndi Shannon Weickert

Schizophrenia is the most disabling disease impacting youth today. It impacts 1% of the total population and typically causes withdrawal from society, loss in IQ, disordered thought and speech, hallucinations and delusions.

14 Aug 2012

Combination of two existing pharmaceutical drugs shows promise against cocaine addiction

A fine-tuned combination of two existing pharmaceutical drugs has shown promise as a potential new therapy for people addicted to cocaine—a therapy that would reduce their craving for the drug and blunt their symptoms of withdrawal.

9 Aug 2012

Alseres enters agreement with Navidea to license Altropane imaging agent

Alseres Pharmaceuticals, Inc. today announced that it has entered into an agreement with Navidea Biopharmaceuticals, Inc. to license, [123I]-E-IACFT Injection (CFT), also called Altropane, an Iodine-123 radiolabeled imaging agent, being developed as an aid in the diagnosis of Parkinson's disease and movement disorders.

31 Jul 2012

Parkinson’s disease treatment: an interview with Ted Dawson

Parkinson’s disease is a disorder which usually affects people in their 60’s and older. It is caused by the loss of dopamine neurons in the brain leading to rigidity, slowness of movement, tremor, problems with balance and so forth.

31 Jul 2012

Raising dopamine levels in frontal cortex reduces impulsivity in healthy adults

Raising levels of the neurotransmitter dopamine in the frontal cortex of the brain significantly decreased impulsivity in healthy adults, in a study conducted by researchers at the Ernest Gallo Clinic and Research Center at the University of California, San Francisco.

26 Jul 2012

Synthetic triterpenoids block development of Parkinson's disease

A new and powerful class of antioxidants could one day be a potent treatment for Parkinson's disease, researchers report.

23 Jul 2012

Exposure to high-intensity vibrations increases risk of Parkinson's

Severe influenza doubles the odds that a person will develop Parkinson's disease later in life, according to University of British Columbia researchers.

21 Jul 2012

Impaired frontostriatal circuitry linked to cognitive defects in PD

Reduced activation of the frontostriatal circuits may underlie the mild cognitive impairment often seen in patients with early Parkinson’s disease, say researchers.

19 Jul 2012

Promising path to Parkinson’s disease treatment

Using adult stem cells, Johns Hopkins researchers and a consortium of colleagues nationwide say they have generated the type of human neuron specifically damaged by Parkinson’s disease (PD) and used various drugs to stop the damage.

17 Jul 2012

UCB’s Neupro now available in U.S. pharmacies

UCB announced today that Neupro (Rotigotine Transdermal System) is now available in U.S. pharmacies. Neupro was approved by the U.S Food and Drug Administration in April to treat the signs and symptoms of early and advanced stage idiopathic Parkinson's disease and moderate-to-severe primary Restless Legs Syndrome.

16 Jul 2012

Novel way to monitor real-time chemical changes in brains of patients undergoing DBS

Mayo Clinic researchers have found a novel way to monitor real-time chemical changes in the brains of patients undergoing deep brain stimulation (DBS). The groundbreaking insight will help physicians more effectively use DBS to treat brain disorders such as Parkinson's disease, depression and Tourette syndrome.

16 Jul 2012

Pressure Point develops 72 hour low-cost dermal device to effectively reduce PONV

Pressure Point Inc. has developed an effective 72 hour low-cost, FDA Market Cleared dermal device, which uses an advanced acupressure approach for longer-acting prophylactic results in reducing the occurrences of postoperative nausea and vomiting.

12 Jul 2012

Treatment of Schizophrenia receives notice of intention to grant a European patent

BioLineRx (NASDAQ:BLRX)(TASE:BLRX), a biopharmaceutical development company, announced today that it has received from the European Patent Office a notice of intention to grant a European patent claiming the salt of BL-1020, a first-in-class orally available treatment for schizophrenia.

9 Jul 2012

Study shows cells from different Parkinson’s patients have unique drug responses

Researchers have taken a step toward personalized medicine for Parkinson's disease, by investigating signs of the disease in patient-derived cells and testing how the cells respond to drug treatments.

5 Jul 2012

Rapamycin enhances learning and memory in young mice

Cognitive skills such as learning and memory diminish with age in everyone, and the drop-off is steepest in Alzheimer's disease. Texas scientists seeking a way to prevent this decline reported exciting results this week with a drug that has Polynesian roots.

30 Jun 2012

Deep brain stimulation reduces binge eating

Deep brain stimulation reduces binge eating in mice, suggesting that this surgery, which is approved for treatment of certain neurologic and psychiatric disorders, may also be an effective therapy for obesity. Presentation of the results will take place Sunday at The Endocrine Society's 94th Annual Meeting in Houston.

25 Jun 2012

Five abstracts evaluating Abbott's LCIG presented at Parkinson's disease congress

Today Abbott announced results from five abstracts evaluating levodopa-carbidopa intestinal gel (LCIG), its investigational compound for advanced Parkinson's disease.

19 Jun 2012

Civitas commences CVT-301 Phase 2a trial in Parkinson's disease

Civitas Therapeutics, Inc., a privately-held pharmaceutical company developing transformative therapeutics using the ARCUS respiratory delivery platform, announced today the initiation of a Phase 2a clinical trial in Parkinson's disease patients evaluating CVT-301, an inhaled formulation of levodopa (L-dopa), for the rapid relief from motor fluctuations.

16 Jun 2012