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Obesity predisposition linked to brain's reward system

The tendency toward obesity is directly related to the brain system that is involved in food reward and addictive behaviors, according to a new study. Researchers at Tufts University School of Medicine (TUSM) and colleagues have demonstrated a link between a predisposition to obesity and defective dopamine signaling in the mesolimbic system in rats.

29 Jul 2008

How anti-depressants and cocaine interact with brain

In a first, scientists from Weill Cornell Medical College and Columbia University Medical Center have described the specifics of how brain cells process antidepressant drugs, cocaine and amphetamines. These novel findings could prove useful in the development of more targeted medication therapies for a host of psychiatric diseases, most notably in the area of addiction.

28 Jul 2008

Coffee and smoking notorious at Alcoholics Anonymous meetings

More than one million Americans currently participate in the Alcoholics Anonymous (AA) program. While AA participants are reportedly notorious for their coffee drinking and cigarette smoking, very little research has quantified their consumption of these two products. Recent findings confirm that coffee and cigarette use among this population is greater than among the general U.S. population: most AA members drink coffee and more than half smoke.

19 Jul 2008

Culture differences in predicting variations in how people present symptoms of depression

The expectation that East-Asian people emphasize physical symptoms of depression (e.g. headaches, poor appetite or aches/pains in the body) is widely acknowledged, yet the few available empirical studies report mixed data on this issue.

15 Jul 2008

New ways of exploiting medicinal uses of cannabis

Research exploring new ways of exploiting the full medicinal uses of cannabis while avoiding unwanted side-effects will be presented to pharmacologists Tuesday, 15 July by leading scientists attending the Federation of European Pharmacological Societies Congress, EPHAR 2008.

From The University of Manchester 15 Jul 2008

Chantix for smoking cessation performs better than placebos

Six treatments for smoking cessation perform better than placebos - including varenicline (Chantix), recently approved for use in Canada - states a team of researchers from McGill University and the University of Montreal in an article published in Canadian Medical Association Journal.

14 Jul 2008

Nicotine clues for dementia treatment

A team of London scientists have found clues for the potentially therapeutic benefits of nicotine on learning, memory and attention while minimising the risk of addiction. The research announced in Geneva Monday will assist the search for new drugs for dementia.

14 Jul 2008

Brain switch provides clues to drug addiction

In the quest to find the biological route of drug addiction, research at Cambridge University, UK, is revealing what makes some people more vulnerable than others. Speaking at Europe's major neuroscience conference in Geneva, Professor Barry Everitt described what they now believe causes the switch from occasional, 'recreational' use to a compulsive habit.

14 Jul 2008

Common genetic variations increase risk of life-long nicotine addiction for young smokers

Common genetic variations affecting nicotine receptors in the nervous system can significantly increase the chance that European Americans who begin smoking by age 17 will struggle with life-long nicotine addiction. Published July 11 in the open-access journal PLoS Genetics, this research - led by scientists at the University of Utah together with colleagues from the University of Wisconsin - highlights the importance of preventing early exposure to tobacco through public health policies.

13 Jul 2008

The good and bad side of dopamine

The chemical dopamine induces both desire and dread, according to new animal research in the July 9 issue of The Journal of Neuroscience. Although dopamine is well known to motivate animals and people to seek positive rewards, the study indicates that it also can promote negative feelings like fear.

9 Jul 2008

Specific gene may make women more susceptible to alcoholism

A particular gene variant might make women more susceptible to alcoholism. At least, a study carried out by the Universities of Bonn and Sweden's Karolinska Institute makes this a plausible conclusion.

8 Jul 2008

A baby's smile gives mothers a natural high

Scientists say the baby's smile that brightens a mother day also lights up a part of her brain.

8 Jul 2008

Radioactive "tag" added to formaldehyde helps monitor body chemistry, disease

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have devised a simple, fast method for adding a radioactive "tag" to formaldehyde, a common organic chemical.

7 Jul 2008

Tough action needed to protect children from the allure of smoking

A new BMA report calls on the UK Governments to introduce a range of tough measures aimed at reducing young people's exposure to positive images of smoking.

7 Jul 2008

Broad differences in alcohol, tobacco and illegal drug use across countries

A survey conducted by the World Health Organization (WHO) research consortium found that the United States had among the highest lifetime rates of tobacco and alcohol use and led in the proportion of participants reporting cannabis (marijuana) or cocaine use at least once during their lifetime.

1 Jul 2008

Study shows youth smoking rates have stagnated

An article in this week's Morbidity and Mortality Weekly Report released today by the U.S. Centers for Disease Control and Prevention (CDC) shows, alarmingly, that the decline in smoking rates among high school students seen from 1997 to 2003 continues to stagnate. These results are an ominous sign as an overwhelming majority of smokers begin their deadly addiction during this critical stage of development in their lives.

26 Jun 2008

Novel electronic device "zaps" away migraine pain

A novel electronic device designed to "zap" away migraine pain before it starts has proven to be the next form of relief for those suffering from the debilitating disease, according to a study conducted at The Ohio State University Medical Center.

26 Jun 2008

State policies have a significant impact on drug treatment programs

State policies have a significant impact on the services performed by substance abuse treatment programs, and could play a key role in efforts to expand the use of research-based "comprehensive" treatment approaches, reports a study in the June issue of the Journal of Substance Abuse Treatment (JSAT).

25 Jun 2008

Study uncovers how Ritalin works in brain to boost cognition, focus attention

Stimulant medications such as Ritalin have been prescribed for decades to treat attention deficit hyperactivity disorder (ADHD), and their popularity as "cognition enhancers" has recently surged among the healthy, as well.

24 Jun 2008

Canada's mental health crisis

No one is safe from mental illness; it strikes without regard for age, gender, or social status. And even though one in four Canadians suffer from a mental illness, it remains a stigma, shrouded in misconceptions.

24 Jun 2008