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Ability to quit smoking may depend on ADHD symptoms, Columbia researchers find
Tobacco use is more prevalent and smoking cessation less likely among persons with Attention Deficit Hyperactivity Disorder (A.D.H.D.) In a study of smokers with attention deficit and hyperactivity symptoms, those who exhibited elevated hyperactivity and impulsivity, with or without inattention,... view more (2008-11-24)

Interaction between gene variants may alter brain function in schizophrenia
A collaborative study led by investigators from Massachusetts General Hospital (MGH) is giving what may be the first look at how interactions between genes underlie a key symptom of schizophrenia, impaired working memory.   view more (2008-11-10)

Pitt research identifies new target in brain for treating schizophrenia
Research from the University of Pittsburgh could expand the options for controlling schizophrenia by identifying a brain region that responds to more than one type of antipsychotic drug.   view more (2008-11-06)

New promising obesity drug may have huge potential
According to trials, a new obesity drug, Tesofensine, which may be launched on the world market in a few years, can produce weight loss twice that of currently approved obesity drugs.   view more (2008-10-23)

ADHD appears to increase level of nicotine dependence in smokers
Young people with ADHD are not only at increased risk of starting to smoke cigarettes, they also tend to become more seriously addicted to tobacco and more vulnerable to environmental factors such as having friends or parents who smoke, according to a study from Massachusetts General Hospital... view more (2008-10-22)

Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
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 that result from... view more (2008-10-15)

Lack of vitamin D linked to Parkinson's disease
A majority of Parkinson's disease patients had insufficient levels of vitamin D in a new study from Emory University School of Medicine.   view more (2008-10-14)

Singing to females makes male birds' brains happy
The melodious singing of birds has been long appreciated by humans, and has often been thought to reflect a particularly positive emotional state of the singer.   view more (2008-10-03)

Do 'light' cigarettes deliver less nicotine to the brain than regular cigarettes?
For decades now, cigarette makers have marketed so-called light cigarettes - which contain less nicotine than regular smokes - with the implication that they are less harmful to smokers' health. A new UCLA study shows, however, that they deliver nearly as much nicotine to the brain.   view more (2008-09-29)

UNC study: Parenting can override effect of genes in how babies respond to stress
Everyone gets stressed, even babies. Now, it appears how infants respond to stress is linked to if they have a particular form of a certain gene, according to a new study from the University of North Carolina at Chapel Hill.    view more (2008-09-23)

Early parenting plays key role in infants' physiological response to stress
In infancy, genes are the key influence on a child's ability to deal with stress. But as early as 6 months of age, parenting plays an important role in changing the impact of genes that may put infants at risk for responding poorly to stress.   view more (2008-09-16)

Protein found that regulates gene critical to dopamine-releasing brain cells
Researchers have identified a protein they say appears to be a primary player in maintaining normal functioning of an important class of neurons - those brain cells that produce, excrete and then reabsorb dopamine neurotransmitters.   view more (2008-09-10)

Abuse of painkillers can predispose adolescents to lifelong addiction
No child aspires to a lifetime of addiction. But their brains might. In new research to appear online in the journal Neuropsychopharmacology this week, Rockefeller University researchers reveal that adolescent brains exposed to the painkiller Oxycontin can sustain lifelong and permanent changes in... view more (2008-09-10)

New evidence on addiction to medicines Diazepam has effect on nerve cells in the brain reward system
Addictions to medicines and drugs are thought to develop over a relatively long period of time. The process involves both structural and functional changes in brain nerve cells that are still poorly understood.   view more (2008-08-28)

Looking beyond the drug receptor for clues to drug effectiveness
Antipsychotic drugs that are widely used to treat schizophrenia and other problems may not work as scientists have assumed, according to findings from Duke University Medical Center researchers that could lead to changes in how these drugs are developed and prescribed.   view more (2008-08-26)

Cocaine: How addiction develops
Permanent drug seeking and relapse after renewed drug administration are typical behavioral patterns of addiction. Molecular changes at the connection points in the brain's reward center are directly responsible for this.   view more (2008-08-22)

1 sleepless night increases dopamine in the human brain
Just one night without sleep can increase the amount of the chemical dopamine in the human brain, according to new imaging research in the August 20 issue of The Journal of Neuroscience.   view more (2008-08-20)

Lessons from yeast: A possible cure for Parkinson's disease?
Parkinson disease (PD) is a debilitating and lethal neurodegenerative disease, for which there is currently no cure. It is caused by the progressive loss of nerve cells that produce the chemical dopamine and is characterized by the accumulation of abnormal aggregates of a protein called alpha-syn... view more (2008-08-15)

Penn study finds way to prevent protein clumping characteristic of Parkinson's disease
Researchers at the University of Pennsylvania School of Medicine have identified a protein from a most unlikely source -- baker's yeast -- that might protect against Parkinson's disease.   view more (2008-08-15)

Cocaine-induced synaptic plasticity linked to persistent addictive behaviors
The persistent nature of addiction is its most devastating feature. Understanding the mechanism underlying this phenomenon is the key for designing efficient therapy. Two separate studies published by Cell Press is the August 14 issue of the journal Neuron identify specific cocaine-induced changes... view more (2008-08-14)

Nature or Nurture-Are You Who Your Brain Chemistry Says You Are?
Researchers using positron emission tomography (PET) have validated a long-held theory that individual personality traits-particularly reward dependency-are connected to brain chemistry, a finding that has implications for better understanding and treating substance abuse and other addictive... view more (2008-08-13)

Unlocking mystery of why dopamine freezes Parkinson's patients
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 been a... view more (2008-08-11)

Genes may make some people more prone to anxiety
Inborn differences may help explain why trauma gives some people bad memories and others the nightmare of post-traumatic stress. Scientists in Germany and the United States have reported evidence linking genes to anxious behavior. The findings appear in the August issue of Behavioral Neuroscience,... view more (2008-08-11)

Research reveals why some smokers become addicted with their first cigarette
New research from The University of Western Ontario reveals how the brain processes the 'rewarding' and addictive properties of nicotine, providing a better understanding of why some people seemingly become hooked with their first smoke.   view more (2008-08-06)

Voluntary exercise does not appear to alleviate anxiety and depression
Voluntary physical activity does not appear to cause a reduction in anxiety and depression, but exercise and mood may be associated through a common genetic factor, according to a report in the August issue of Archives of General Psychiatry, one of the JAMA/Archives journals.   view more (2008-08-05)
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