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Oestrogen's impact on fat storage for childbearing

It's a paradox that has flummoxed women for generations - their apparent ability to store fat more efficiently than men, despite eating proportionally fewer calories.

2 Mar 2009

Young adults with PTSD may be more likely to attempt suicide

Posttraumatic stress disorder (PTSD) - but not exposure to traumatic events without the development of PTSD - may be associated with subsequent attempted suicide in young adults, according to a report in the March issue of Archives of General Psychiatry.

2 Mar 2009

Discovery of genetic variation linked to both autism and gastrointestinal dysfunction

A study led by researchers at the University of Southern California (USC) and Vanderbilt University have identified a specific gene variant that links increased genetic risk for autism with gastrointestinal (GI) conditions.

2 Mar 2009

Universal vaccination associated with decreased Canadian cases of most deadly strain of meningitis

Universal childhood vaccination against meningococcal C appears to reduce Canadian incidence of the most deadly strain of bacterial meningitis, reports new research published in the March issue of The Pediatric Infectious Disease Journal.

2 Mar 2009

Untreated psychiatric disorders common in single mothers on welfare

Urban single mothers nearing the end of their welfare eligibility appear more likely to have substance use and psychiatric disorders than women in the general population, and often do not receive treatment, according to a report in the March issue of Archives of General Psychiatry.

2 Mar 2009

Experts still recommend no television under the age of 2

A longitudinal study of infants from birth to age 3 showed TV viewing before the age of 2 does not improve a child's language and visual motor skills, according to research conducted at Children's Hospital Boston and Harvard Medical School.

2 Mar 2009

Angiogenesis inhibitors, study points to limitations, solutions

A new generation of cancer drugs designed to starve tumors of their blood supply - called "angiogenesis inhibitors"-succeeds at first, but then promotes more invasive cancer growth-sometimes with a higher incidence of metastases, according to a new study in animals.

2 Mar 2009

Childhood swimming lessons appropriate as part of a comprehensive drowning prevention strategy

Providing very young children with swimming lessons appears to have a protective effect against drowning and does not increase children's risk of drowning, reported researchers at the National Institutes of Health.

2 Mar 2009

Study predicts when invasive species can travel more readily by air

A new study forecasts when climate factors such as temperature, humidity and rainfall will match at geographically distant airline departure and destination points, which could help to shuffle invasive species, and the diseases they may carry, across the globe along existing flight routes.

2 Mar 2009

What role does the brain play in some women's lack of sexual desire?

More than 40 percent of women ages 18-59 experience sexual dysfunction, with lack of sexual interest - hypoactive sexual desire disorder, or HSDD - being the most commonly reported complaint, according to medical researchers.

2 Mar 2009

Instant immunity through chemically programmable vaccination and covalent self-assembly

The experiments, thus far performed only in mice, appear to overcome a major drawback of vaccinations - the lag time of days, or even weeks, that it normally takes for immunity to build against a pathogen.

2 Mar 2009

A new monkey model for HIV

By altering just one gene in HIV-1, scientists have succeeded in infecting pig-tailed macaque monkeys with a human version of the virus that has until now been impossible to study directly in animals.

2 Mar 2009

New treatment target for chronic abdominal pain

High levels of a protein linked to the way pain signals are sent to the brain led to a decrease in abdominal pain in a recent study in mice.

2 Mar 2009

Protein complex shown to play pivotal role in stem cell development

Scientists at the Stanford University School of Medicine have identified a protein complex important in controlling whether embryonic stem cells retain their ability to become any cell in the body - a quality called pluripotency - or instead embark on a pathway of maturation and specialization.

2 Mar 2009

Noninvasive optical device monitors brain blood flow and metabolism in stroke victims

A University of Pennsylvania team has completed the first successful demonstration of a noninvasive optical device to monitor cerebral blood flow in patients with acute stroke, a leading cause of disability and death.

2 Mar 2009

New optical technology shows promise in detecting pancreatic cancer

Optical technology developed by a Northwestern University professor of biomedical engineering has been shown to be effective in detecting the presence of pancreatic cancer through analysis of neighboring tissue in the duodenum, according to clinical trial results published in the journal Disease Markers.

2 Mar 2009

One-third of Americans losing sleep over the state of the U.S. economy

One-third of Americans are losing sleep over the state of the U.S. economy and other personal financial concerns, according to a new poll released today by the National Sleep Foundation (NSF).

2 Mar 2009

Discovery of new potential therapeutic target for Barth Syndrome

Researchers at NYU Langone Medical Center may have discovered a new targeted intervention for Barth Syndrome (BTHS).

2 Mar 2009

20 percent of sexual assaults drug-facilitated in Canadian study

More than 20% of sexual assaults in a sample of 882 victims were drug-facilitated sexual assaults, found a new study published in CMAJ.

2 Mar 2009

Scientists debug Clostridium difficile

An international team of scientists, led by Monash University researchers, has uncovered the workings of a superbug that kills elderly hospital patients worldwide - a discovery that has the potential to save lives and health care systems billions of dollars each year.

2 Mar 2009