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New biological insights into fat tissue

For better or worse, a popular class of anti-diabetic drugs does more than lower blood sugar. One known as rosiglitazone has been in the spotlight for its possible link to increased cardiovascular events, but it also seems to come with unexplained vascular benefits and an unwelcome tendency for weight gain.

6 Jul 2011

Infants treated with certain HIV medication more likely to experience adrenal dysfunction

Infants of human immunodeficiency virus 1 (HIV-1) infected mothers who were treated before and after birth with the protease inhibitor lopinavir-ritonavir were more likely to experience adrenal dysfunction, including life-threatening adrenal insufficiency in premature infants, compared with a zidovudine-based regimen, according to a preliminary report in the July 6 issue of JAMA.

6 Jul 2011

Alpha-tocotrienol protects brain cells after stroke in three ways

A natural form of vitamin E called alpha-tocotrienol can trigger production of a protein in the brain that clears toxins from nerve cells, preventing those cells from dying after a stroke, new research shows.

6 Jul 2011

First bloodless heart transplant on 6-year-old boy performed at Nationwide Children's Hospital

Between injuries from severe storms that ripped across the country this spring, to the typical blood donation shortage seen each and every summer, experts say that the nation's blood supply is running low. At Nationwide Children's Hospital, doctors are helping to offset that demand by what's known as "bloodless" techniques.

5 Jul 2011

Prolonged exposure to air pollution can have visible, negative effects on brain

Long-term exposure to air pollution can lead to physical changes in the brain, as well as learning and memory problems and even depression, new research in mice suggests.

5 Jul 2011

Study: Threatened miscarriages complicate 20% of all pregnancies

Dr Kaltum Adam, an honorary clinical research fellow at St Mary's Hospital in Manchester (UK), told the annual meeting of the European Society for Human Reproduction and Embryology that around 20% of all pregnancies were complicated by threatened miscarriage, and up to 20% of these would miscarry.

5 Jul 2011

Cleavage stage embryo with aneuploidy can undergo genetic normalisation process

Professor William G. Kearns told the annual meeting of the European Society of Human Reproduction and Embryology that a three-day-old embryo with an incorrect number of chromosomes was capable of undergoing "a dynamic process of genetic normalisation" so that by day five, when it had developed to the blastocyst stage, it had become euploid, with the correct number of chromosomes.

5 Jul 2011

Smart nanomaterials can disrupt blood supply to cancerous tumours

Scientists at the University of Southampton have developed smart nanomaterials, which can disrupt the blood supply to cancerous tumours.

5 Jul 2011

Life satisfaction protects against coronary heart disease

While depression and anxiety have long been recognised as risk factors for heart disease, there is less certainty over the beneficial effects of a 'positive' psychological state, Now, following a study of almost 8000 British civil servants, researchers say that a satisfying life is indeed good for the heart.

5 Jul 2011

Adipose tissue might serve as target for treating obesity-related disorders

Researchers at Boston University School of Medicine (BUSM) and Boston Medical Center (BMC) have shown that the quality - not just the quantity - of adipose, or fat, tissue is a significant contributing factor in the development of inflammation and vascular disease in obese individuals.

5 Jul 2011

Fruit flies with poor posture help scientists understand human intellectual disability

Clumsy fruit flies with poor posture are helping an international team of scientists understand inherited intellectual disability in humans - and vice versa.

5 Jul 2011

Women with sedentary lifestyle more likely to develop pulmonary embolism

Women who sit for long periods of time everyday are two to three times more likely to develop a life-threatening blood clot in their lungs than more active women, finds a study published on bmj.com today.

5 Jul 2011

Study shows effect of maternal height on multiple implantation

The researchers say that this is the first time the effect of maternal height on multiple implantation has been shown.

4 Jul 2011

Women can have successful pregnancy after recurrent miscarriage

In a subset of the ALIFE study, which investigated the effect of aspirin alone or combined with low-molecular-weight heparin, compared to placebo, on the live birth rate in women with unexplained RM, the researchers looked at the length of time between the moment of randomisation to the moment of the first day of last menstruation before the subsequent pregnancy.

4 Jul 2011

Simple blood test for melanoma-inhibitory activity could detect neurofibromas

Neurofibromatosis (NF1) is a genetic condition which affects one in every 3,000 people. The severity of symptoms can range from benign 'café au lait' patches on the skin, through small tumors under the skin and deep plexiform neurofibromas, to malignant tumors of the nerve sheath.

4 Jul 2011

Beetroot juice effective for simulated competition environment

Winning margins in the Tour de France can be tight - last year just 39 seconds separated the top two riders after more than 90 hours in the saddle. When every second counts, riders do everything possible to gain a competitive advantage - from using aerodynamic carbon fibre bikes to the very latest in sports nutrition.

2 Jul 2011

Study finds two reasons behind racial disparities in stroke treatment care

African-Americans are less likely than whites to receive critical stroke treatment primarily because they do not get to a hospital soon enough for time-sensitive treatment and because of preexisting medical conditions. For patients who are eligible for treatment, no racial disparity was found.

2 Jul 2011