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Providing HIV medication to both members of a couple may substantially reduce the risk of transmission within that couple, according to a study in PLOS Medicine. Jared Baeten of the University of Washington and colleagues conducted a prospective implementation study to test the feasibility and acceptability of a program to initially offer antiretroviral medications to both members of couples in which one member was HIV-positive and the other was HIV-negative (HIV-serodiscordant couples).

CHARLOTTESVILLE, VA (AUGUST 23, 2016). Seventy percent of football players in the US are youths 9 to 14 years of age, yet most data on head impacts sustained in this sport have been from high school, college, and professional football players. This makes it difficult to make informed decisions on how best to structure practices and games to protect younger players from concussion. A new study reported in the Journal of Neurosurgery: Pediatrics will hopefully change that.

The exotic and colorful snub-nosed monkey spends its days foraging about the treetop in the mountain forests in China, Myanmar and Vietnam. Though once widespread, this endangered species is only limited to fragmental mountain forests, and the highest altitude (up to 4,500 meters) of any primate, making them a fascinating subject for evolutionary biologists to study to reveal the genetics behind their adaptations.

Two studies appearing in the August 23/30 issue of JAMA examine the use of genetic tests to help rule out a serious bacterial infection in infants with fever, and also to determine if an infection is bacterial or viral in children with fever.

In a study appearing in the August 23/30 issue of JAMA, Jason D. Wright, M.D., of the Columbia University College of Physicians and Surgeons, New York, and colleagues examined trends in the route of hysterectomy (abdominal, minimally invasive, or vaginal), use of electric power morcellators (a procedure in which the uterus is fragmented into smaller pieces, and may result in the spread of undetected malignancies), and prevalence of abnormal pathology before and after a Food and Drug Administration (FDA) warning.

Invasions from alien species such as Japanese Knotweed and grey squirrels threaten the economies and livelihoods of residents of some of the world's poorest nations, new University of Exeter research shows.

The damage caused by non-native species like the Harlequin ladybird and mink threaten global biodiversity and cost global economies US$1.4 trillion annually. They can transmit disease, choke river systems and wells, prevent cattle being able to graze and out-compete or eat native species.

ANN ARBOR, Mich. -- For people with weight problems, news headlines in recent years may have brought relief, as researchers studying the microscopic creatures inside our bodies reported possible links between obesity and an out-of-whack balance of microbes.

But a new study, done by pooling data from most of those studies, throws cold water on the idea that extra pounds may stem from an imbalance of the bacteria inside us.

Physicians from Children's Hospital of Michigan, UC Davis Medical Center and Nationwide Children's Hospital, in collaboration with 19 other pediatric emergency departments around the country, have established a "proof of principle" for measuring patterns of ribonucleic acid (RNA) expression in the bloodstream that can enable clinicians to distinguish bacterial infections from other causes of fever

Nearly three quarters of the football players in the U.S. are less than 14 years old. But amid growing concern about concussion risk in football, the majority of the head-impact research has focused on college and professional players.

Contrary to a prevailing theory, coral larvae could not survive the five-thousand-kilometer trip across the Pacific Ocean to replenish endangered corals in the eastern Pacific, according to new research. Researchers used a supercomputer to simulate billions of coral larvae traveling on ocean currents over a 14.5-year period.

For those facing infertility, IVF has long been the established option to have a baby. Now Australian and Belgian medical scientists have discovered how to improve a woman's chances of becoming pregnant using a less invasive and cheaper alternative.

The innovation, which has already undergone pre-clinical testing, uses growth factors to enhance an existing fertility treatment known as in-vitro maturation (IVM). The result is improved egg quality and a 50% increase in embryos, with the use of minimal drugs.

An international team of researchers have shown that vulnerable coral populations in the eastern tropical Pacific have been completely isolated from the rest of the Pacific Ocean for at least the past two decades.

Ocean currents can change speed and even direction depending on the season or climatic events like El Nino.

The new study led by University of Bristol researchers has used a state-of-the-art computer model to trace the journeys of coral larvae transported at the whim of these currents.

Scientists have identified two genes that are switched on only when a child is suffering from a bacterial infection. This could allow doctors to quickly distinguish between a viral or bacterial illness, and identify early cases of potentially deadly infections.

The international team of scientists, led by researchers at Imperial College London, hope to now use the findings to develop a rapid test for use in hospitals and doctors' surgeries.

Research has shown that the growth of cancerous tumours is affected by transforming growth factor (TGFβ) in the body's cells; TGFβ both suppresses and stimulates tumour development. But it has not been understood how this happens. A new study being published in the journal Science Signaling reveals important details behind this process.

Chemicals used in certain pesticides and as insulating material banned in the 1970s may still be haunting us, according to new research that suggests links between higher levels of exposure during pregnancy and significantly increased odds of autism spectrum disorder in children.