A new debate in the open access journal PLoS Medicine questions whether all African children with fever should be treated presumptively with antimalarial drugs, or if treatment should wait until laboratory tests confirm malarial infection.

Experts estimate that 20 percent of women experience excessive or prolonged menstrual bleeding at some time during their lives, particularly as they approach menopause.

Brain scans taken during normal smoking activity and 24 hours after quitting show there is a marked increase in a particular kind of brain activity when quitters see photographs of people smoking.

Commonly used pneumococcal polysaccharide vaccines do not appear to be effective for preventing pneumonia, found a study by a team of researchers from Switzerland and the United Kingdom.

Human testes cells bear a striking resemblance to embryonic stem cells - they can differentiate into each of the three main types of tissues of the body - but the researchers caution against viewing them as one and the same.

In a six-month comparison of low-carb diets, one that encourages eating carbohydrates with the lowest-possible rating on the glycemic index leads to greater improvement in blood sugar control, according to Duke University Medical Center researchers.

Scientists at Burnham Institute for Medical Research have determined the structure of the interactions between proteins that form the heart of the death inducing signalling complex (DISC), which is responsible for triggering apoptosis.

Babies born to HIV-positive mothers and given the antiretroviral drug nevirapine through the first six weeks of life to prevent infection via breast-feeding are at high risk for developing drug-resistant HIV if infected.

The Chronic Care Model is a framework to redesign daily medical practice. It aims to transform the health care system from acute and reactive to proactive and planned - and based more on evidence about populations, less on habit.

The study of ancient microbes may not seem consequential, but such pioneering research at the University of Oklahoma has implications for the state of modern human health.

Cancer and cell biology experts at the University of Cincinnati have identified a new tumour suppressor that may help scientists develop more targeted drug therapies to combat lung cancer.

A new study by McMaster University researchers has provided insight into how scientists might develop therapies and drugs that more carefully target cancer, while sparing normal healthy cells

A new calibration tool was recently developed to help students and soil scientists calibrate their thumb and forefinger for the correct amount of pressure. Rupture resistance is a measure of the strength of a soil.

A new study sheds light on a little understood biological process called quiescence, which enables blood-forming stem cells to exist in a dormant or inactive state in which they are not growing or dividing.

A group of Dartmouth researchers has found a new function for one of the proteins involved with chromosome segregation during cell division.

Researchers have measured a repulsive quantum mechanical force that could be harnessed and tailored for a wide range of new nanotechnology applications.

Scientists have identified mutations in a gene that predict a high likelihood of relapse in children with acute lymphoblastic leukaemia.

New research has shown that after controlling for other factors such as depression or substance abuse, there is a significant association between metabolic syndrome and PTSD.

Mice exposed to low temperatures develop more blood vessels in their adipose tissue and metabolise body fat more quickly, according to a new study from Karolinska Institutet.

When the hydrogen atoms of pyridine are replaced with deuterium, it adopts a crystalline form that can only be achieved under high pressure with "normal" pyridine.