Body

Children who have their adenoids surgically removed do not get fewer upper respiratory tract infections such as sinusitis and colds, finds research published on bmj.com today.

Upper respiratory tract infections are extremely common in children and many of them are referred for ear, nose and throat (ENT) surgery. Indeed, having adenoids taken out (adenoidectomy) is one of the most frequently performed surgical procedures in children in western countries, says the study.

Manufacturers should have to show how their drugs compare to existing treatments before approval to help ensure that the most beneficial and safest therapies reach patients and that limited healthcare resources are invested wisely, argue experts on bmj.com today.

Currently, manufacturers have to compare the risks and benefits of a new drug against a placebo. Direct (head to head) comparisons with existing therapies are only required when use of a placebo is deemed unethical.

Interventions targeting malaria, such as insecticide-treated bed nets, antimalarial drugs and mosquito control, could substantially reduce cases of bacteraemia, which kill hundreds of thousands of children each year in Africa and worldwide. This is the conclusion of research published today in the Lancet and funded by the Wellcome Trust.

Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A new study directly tackles these fundamental questions by investigating a species of cavefish, Phreatichthys andruzzii, which has lived isolated for 2 million years beneath the Somalian desert. Many fish species have evolved in the absence of sunlight in cave systems around the world, sharing a common set of striking adaptations including eye loss.

SEATTLE – Children who live in households that own at least one insecticide-treated bed net are less likely to be infected with malaria and less likely to die from the disease, according to a new study by the Institute for Health Metrics and Evaluation (IHME) at the University of Washington.

A somewhat mysterious soft tissue found in the fetus during early development in the womb plays a pivotal role in the formation of mature beta cells the sole source of the body's insulin. This discovery, made by scientists at University of California, San Francisco (UCSF) and Texas A&M University, may lead to new ways of addressing Type 1 and Type 2 diabetes.

HOUSTON – Nearly half of breast cancer patients carrying the BRCA1 gene mutation experience a complete pathological response (pCR) – the disappearance of all evidence of disease from the breast tissue and lymph nodes – regardless of disease stage after standard neoadjuvent chemotherapy, according to new research from The University of Texas MD Anderson Cancer Center.

Researchers reported that explicit inclusion of disparities in cost-effectiveness analysis, would allow policy makers to identifystrategies that would reduce overall cancer risk, reduce disparities between racial ethnic subgroups, and be cost-effective,according to a study published online September 6 in the Journal of the National Cancer Institute.

Neurosurgery researchers at UC Davis Health System have used a new, leading-edge stem cell therapy to promote the growth of bone tissue following the removal of cervical discs -- the cushions between the bones in the neck -- to relieve chronic, debilitating pain.

The procedure was performed by associate professors of neurosurgery Kee Kim and Rudolph Schrot. It used bone marrow-derived adult stem cells to promote the growth of the bone tissue essential for spinal fusion following surgery, as part of a nationwide, multicenter clinical trial of the therapy.

A surprising new discovery by the University of Colorado Boulder and the University of California, Davis regarding the division of tiny "power plants" within cells known as mitochondria has implications for better understanding a wide variety of human diseases and conditions due to mitochondrial defects.

A team of Penn State University scientists has invented a new system that uses magnetism to purify hybrid nanoparticles -- structures that are composed of two or more kinds of materials in an extremely small particle that is visible only with an electron microscope.

COLUMBUS, Ohio – The "white-coat effect" is not reserved for only the human patients who see their blood pressure rise in response to the stress of a doctor visit.

In a new study, researchers have determined that anxiety associated with being in a veterinary hospital elevates the blood pressure in retired racing greyhounds – a breed known for having higher-than-average blood pressure in the first place.

An innovative approach to treating neonatal feeding problems at Nationwide Children's Hospital has allowed infants who were struggling to feed orally to be discharged earlier and without feeding tubes, subsequently saving millions of annual healthcare charges.

WEST LAFAYETTE, Ind. - The right combination of compounds produced by a beneficial fungus could lead to grasses that require fewer pesticides and are safer for wildlife and grazing animals, according to Purdue University scientists.

Neotyphodium is a fungus called an endophyte. It lives symbiotically, feeding off many species of grasses while providing the grass with protection from insects such as black cutworm. But Neotyphodium also can be toxic to animals based on the types of alkaloids it produces. It was once a serious concern for pasture managers.

A team of Penn State University scientists has invented a new system that uses magnetism to purify hybrid nanoparticles -- structures that are composed of two or more kinds of materials in an extremely small particle that is visible only with an electron microscope.