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Low levels of 'brain derived neurotrophic factor' may lead to obesity

A brain chemical that plays a role in long term memory also appears to be involved in regulating how much people eat and their likelihood of becoming obese, according to a National Institutes of Health study of a rare genetic condition.

28 Aug 2008

UT Southwestern discovery may lead to new drug-abuse treatments

Increased connections among brain cells caused by excessive drug use may represent the body's defense mechanism to combat addiction and related behaviors, scientists at UT Southwestern Medical Center have found.

27 Aug 2008

Addiction drug Vigabatrin proves successful in animal weight loss study

Vigabatrin, a medication proposed as a potential treatment for drug addiction by scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, also leads to rapid weight loss and reduced food intake according to a new animal study from the same research group.

20 Aug 2008

One night without sleep increases chemical dopamine in the human brain

Because drugs that increase dopamine, like amphetamines, promote wakefulness, the findings offer a potential mechanism explaining how the brain helps people stay awake despite the urge to sleep. However, the study also shows that the increase in dopamine cannot compensate for the cognitive deficits caused by sleep deprivation.

19 Aug 2008

Medicinal cannabis effective for neuropathic pain in HIV

In a double-blind, placebo-controlled clinical trial to assess the impact of smoked medical cannabis, or marijuana, on the neuropathic pain associated with HIV, researchers at the University of California, San Diego School of Medicine found that reported pain relief was greater with cannabis than with a placebo.

6 Aug 2008

Highly active antiretroviral therapy (HAART) equally effective in patients with or without history of injection drug use

Highly active antiretroviral therapy (HAART) has been extremely effective at slowing the progression of HIV infection to AIDS as well as extending the lives and improving the quality of life for those with HIV. However, some doctors have been reluctant to prescribe HAART to HIV-infected injection drug users because of concern that they may not fully benefit from the therapy.

6 Aug 2008

Fatal flaws in the way new drugs are tested and marketed

Americans are likely to be exposed to unacceptable side effects of FDA-approved drugs such as Vioxx in the future because of fatal flaws in the way new drugs are tested and marketed, according to research to be presented at the annual meeting of the American Sociological Association (ASA).

3 Aug 2008

Drug use by Europe's youth leads to risky sexual behaviour

High levels of alcohol and drug consumption by young people in Europe is leading to an increase in unsafe sexual practices and a consequent rise in sexually-transmitted disease infections, according to a recently published study by the European Institute of Studies on Prevention (IREFREA).

31 Jul 2008

Study sheds light on why addiction is a chronic disease

Drug addiction dramatically shifts a person's attention, priorities, and behaviors towards a focus almost entirely on seeking out and taking drugs. Now, an animal study funded by the National Institute on Drug Abuse, part of the National Institutes of Health, has identified some of the specific long-term adaptations in the brain's reward system that may contribute to this shift.

31 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

Energy drinks associated with risk-taking behaviors among college students

Over the last decade, energy drinks -- such as Red Bull, Monster and Rockstar -- have become nearly ubiquitous on college campuses. The global market for these types of drinks currently exceeds $3 billion a year and new products are introduced annually.

24 Jul 2008

Human Rights Watch urges Iran to release or charge two HIV/AIDS advocates

Human Rights Watch on Monday said that Iranian authorities have not disclosed why two physicians known for their work on HIV/AIDS prevention and treatment were detained last month or where they are being held, BBC News reports.

23 Jul 2008

Forensic psychiatric inpatients with tattoos are significantly more likely to suffer from ASPD

The presence of tattoos on forensic psychiatric inpatients should alert clinicians to a possible diagnosis of Antisocial Personality Disorder (ASPD), and also about the potential for histories of suicide attempt, substance abuse, and sexual abuse, according to research published in the UK Journal 'Personality and Mental Health'.

16 Jul 2008

Obesity ranks as top health concern for kids, poll finds

As children's waistlines continue to grow, so have concerns about childhood obesity. According to a report released today by the University of Michigan C.S. Mott Children's Hospital National Poll on Children's Health, childhood obesity is now the No. 1 health concern for kids in 2008, topping smoking and drug abuse. In 2007, childhood obesity ranked third among parents' top 10 overall health concerns for kids.

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

Researchers identify brain cells related to fear - paves way for more effective PTSD treatments

The National Institute of Mental Health estimates that in any given year, about 40 million adults (18 or older) will suffer from some form of anxiety disorder, including debilitating conditions such as phobias, panic disorders and post-traumatic stress disorder (PTSD). It is estimated that nearly 15 percent of U.S. soldiers returning from Iraq and Afghanistan develop PTSD, underscoring the urgency to develop better treatment strategies for anxiety disorders.

10 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

Effects of magic mushrooms long-lasting

Researchers in the United States say the "spiritual" effects of sacred mushrooms can last for more than a year.

2 Jul 2008

Disease-detecting lab-on-a-chip

Detecting food-borne diseases such as campylobacter and salmonella long before they enter the food chain would help ensure that the dinner on your table is safe to eat.

1 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