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Past clinical trials of vitamin E fatally flawed

Generations of studies on vitamin E may be largely meaningless, scientists say, because new research has demonstrated that the levels of this micronutrient necessary to reduce oxidative stress are far higher than those that have been commonly used in clinical trials.

24 Sep 2007

Acute loss of intestinal CD4+ T cells is not predictive of SIV virulence

A sudden loss of T cells -- white blood cells crucial to the immune system -- is not the trigger for the onset of AIDS, according to a study published in the September 2007 issue of the Journal of Immunology by a team of researchers at Tulane National Primate Research Center.

24 Sep 2007

Study highlights shared burden of young carers in the UK and Tanzania

It's not just distance that separates the children of Tanzania and the UK. Their lifestyles, aspirations and access to employment, education and healthcare are worlds apart.

24 Sep 2007

Why some people find it so difficult to stop smoking

Mark Twain boasted that it was easy to quit smoking because he did it every day.

24 Sep 2007

Clostridium difficile bacterium found on patients with no obvious signs or symptoms of disease

The bacterium that causes a highly contagious and sometimes deadly form of diarrhea is frequently carried by persons who do not have any of the disease symptoms, according to a study in the Oct. 15 issue of Clinical Infectious Diseases, now available online.

24 Sep 2007

Process of care failures in invasive cervical cancer: Systematic review and meta-analysis

The decline in cervical cancer is a success story of cancer research. Although there are reasons to be optimistic about even further decreases in cervical cancer incidence, there still remain some women who are not screened.

24 Sep 2007

Brain atrophy in elderly leads to unintended racism, depression and problem gambling

In a study appearing in the October issue of Current Directions in Psychological Science, University of Queensland psychologist, Bill von Hippel, reports that decreased inhibitory ability in late adulthood can lead to unintended prejudice, social inappropriateness, depression, and gambling problems.

24 Sep 2007

Framingham Heart Study 100K result published

BioMed Central has announced that 17 research articles carried out using genetic data from the Framingham Heart Study (FHS), are being published as a supplement to BMC Medical Genetics.

23 Sep 2007

AIDS Vaccine Advocacy Coalition voices disappointment in trial results for MRK-Ad5 AIDS vaccine candidate

The AIDS Vaccine Advocacy Coalition (AVAC) released the following statement from Executive Director Mitchell Warren about the announcement that vaccinations have been discontinued in the STEP Study, a test-of-concept trial of the MRK-Ad5 AIDS vaccine candidate developed by the Merck Research Laboratories.

23 Sep 2007

Study reveals the regulatory mechanism of protein kinase A

Research conducted at the University of California, San Diego (UCSD) School of Medicine has shed new light on the structure and function of one of the key proteins in all mammalian cells, protein kinase A (PKA), an enzyme which plays an essential role in memory formation, communication between nerve cells, and cardiac function.

21 Sep 2007

Diets rich in rapidly-digested carbohydrates may cause fatty liver

Diets rich in rapidly-digested carbohydrates not only expand waistlines, but may also cause fatty liver, a condition that can lead to liver failure and death, finds a new study in mice.

21 Sep 2007

Functional brain imaging shows neural circuits contributing to pedophilia

Pedophilia, the sexual attraction of adults to children, is a significant public health concern and it does not respond well to treatment.

21 Sep 2007

Process of necrosis redefined in landmark study

A new study led by investigators from the University of Pittsburgh School of Medicine demonstrates that the process of necrosis, long thought to be a chaotic, irreversible pathway to cell death, may actually be triggered as part of a regulated response to stress by a powerful protein, SRP-6, that can potentially halt necrosis in its path.

21 Sep 2007

Noninvasive prenatal testing by analyzing mother's blood

Currently, prenatal diagnosis of genetic diseases and genetic monitoring of fetal development require invasive procedures.

21 Sep 2007

Repeat courses of corticosteroids in mothers linked to increased rate of cerebral palsy among children

When pregnant women are at high risk for preterm birth, giving them a single injection of corticosteroids has been shown to reduce the baby's chances of having serious lung problems after birth.

21 Sep 2007

Cancer patients, spouses report similar emotional distress

A cancer diagnosis affects more than just the patient. A new study from researchers at the University of Michigan Comprehensive Cancer Center finds spouses report similar physical and emotional quality of life as the patient.

21 Sep 2007

Catheter angiography may be an unnecessary follow-up to CT angiography

Even in challenging cases, CT angiography (CTA) offers an accurate and rapid diagnosis for blunt trauma victims who may have aortic or great vessel injury negating the need for more invasive procedures, according to a recent study conducted by radiologists at the University of Washington and the Harborview Injury Prevention and Research Center in Seattle, WA.

21 Sep 2007

AHRQ and FDA to collaborate in ADHD study

Two U.S. Department of Health and Human Services agencies will collaborate in the most comprehensive study to date of prescription medications used to treat attention deficit hyperactivity disorder (ADHD) and the potential for increased risk of heart attack, stroke or other cardiovascular problems.

21 Sep 2007

Study looks at mitochondrial variation in sperm traits and sperm competitive ability

University of Nevada, Reno researchers Jeanne and David Zeh of the Department of Biology have received a five-year, $650,000 grant from the National Science Foundation to investigate the effects of natural mitochondrial variation on sperm traits and sperm competitive ability.

20 Sep 2007

Hydrogen sulfide limits severe heart attack damage

Administering hydrogen sulfide (H2S) directly into the heart during a simulated heart attack significantly reduces the tissue and cell damage often seen in oxygen-starved organs, according to a new study from researchers at the University of Alabama at Birmingham

20 Sep 2007