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Evolutionary connection between food supply and brain size

In a study of orangutans living on the Indonesian islands of Borneo and Sumatra, scientists from Duke University and the University of Zurich have found what they say is the first demonstration in primates of an evolutionary connection between available food supplies and brain size.

23 Oct 2006

Common gene variant increases risk of developing diabetes

Carrying two copies of a common variant of a particular gene doubles your chances of developing diabetes and puts you in a similar risk category to being clinically obese, according to a collaborative study led by UCL (University College London) researchers.

23 Oct 2006

Eye color reflects a simple, predictable and reliable genetic pattern of inheritance

Before you request a paternity test, spend a few minutes looking at your child's eye color. It may just give you the answer you're looking for.

23 Oct 2006

Race is associated with unfavorable breast cancer tumor biology

African-American women with breast cancer were more likely to have larger, later-stage tumors that were more difficult to treat and also had lower survival rates than Hispanic and Caucasian women who received the same treatment in two independent series of clinical trials examined by researchers from The University of Texas M. D. Anderson Cancer Center.

23 Oct 2006

Popular ADHD drug Ritalin safe and effective for pre-schoolers

A new study by researchers from the Johns Hopkins Children's Center and five other medical centers concludes that carefully measured, low doses of methylphenidate (Ritalin) are safe and effective for attention-deficit and hyperactivity disorder (ADHD) in preschoolers.

23 Oct 2006

Scientists identify gene called HTRA1 that contributes to a major risk of Age Related Macular Degeneration

Researchers at the John A. Moran Eye Center at the University of Utah have identified a gene called HTRA1 that contributes to a major risk of Age Related Macular Degeneration (AMD), the most common cause of irreversible vision loss in the developed world.

20 Oct 2006

PGC-1 alpha implicated in Huntington's disease neurodegeneration

A metabolic disorder underlies the brain effects found in those with Huntington's disease, researchers report in an advance article publishing online October 19, 2006. The article will appear in the November 2006 issue of the journal Cell Metabolism, published by Cell Press.

20 Oct 2006

Gene mutation explains type of brittle bone disease

A newly identified gene mutation helps explain a subset of cases of osteogenesis imperfecta (OI), or brittle bone disease, whose origin had until now remained mysterious.

20 Oct 2006

Gene called Kibra plays an important role in memory

Researchers at the Translational Genomics Research Institute (TGen) have announced the discovery of a gene that plays a significant role in memory performance in humans.

20 Oct 2006

Flexible interface between DNA ligase and a heterotrimeric sliding clamp supports conformational switching and efficient ligation of DNA

Scientists investigating an important DNA-repair enzyme now have a better picture of the final steps of a process that glues together, or ligates, the ends of DNA strands to restore the double helix.

20 Oct 2006

Scientists discover why some bacteria are naturally magnetic

Scientists at the Naval Research Laboratory (NRL) and Purdue University have shed light on one of microbiology's most fascinating mysteries--why some bacteria are naturally magnetic.

20 Oct 2006

$74 million allocated to study environmental causes of disease

As part of the new Exposure Biology Program, the National Institute of Environmental Health Sciences, a component of the National Institutes of Health, today announced $74 million in grant opportunities for the development of new technologies that will improve the measurement of environmental exposures that contribute to human disease.

19 Oct 2006

Yellow fever and Poliomyelitis outbreaks in Africa

Yellow fever in Ivory Coast - On 5 October 2006, the Ministry of Health reported 2 cases of yellow fever in the towns of Korhogo and Ouaragahio in Ivory Coast.

19 Oct 2006

Underlying causes, frequencies, and outcomes of dilated cardiomyopathy

The mystery behind a commonly untreatable and undetected heart muscle disease in children is partially revealed for the first time in today's edition of the scientific journal JAMA.

17 Oct 2006

HIV exploits competition among T cells - points to new strategy for AIDS vaccination

A new HIV study shows how competition among the human immune system's T cells allows the virus to escape destruction and eventually develop into full-blown AIDS.

17 Oct 2006

Why organs fail following massive trauma

Massive trauma, say from a sabertooth tiger attack, meant immediate death for the primitive human.

17 Oct 2006

Vaccine that protects mice against 1918 influenza virus developed

Federal scientists have developed a vaccine that protects mice against the killer 1918 influenza virus. They also have created a technique for identifying antibodies that neutralize this virus, a tool that could help contain future pandemic flu strains.

17 Oct 2006

Incidence of kidney damage associated with coronary artery bypass surgery has increased significantly

The incidence of kidney damage associated with coronary artery bypass surgery has increased significantly over the past 16 years in the United States, but the rate of death from such damage has decreased significantly during the period, according to a new analysis.

16 Oct 2006

Study points to new strategy for AIDS vaccination

A new HIV study shows how competition among the human immune system's T cells allows the virus to escape destruction and eventually develop into full-blown AIDS.

16 Oct 2006

New technique allows partial-match cell transplants for children with most resistant leukemia

Clinicians at St. Jude Children's Research Hospital have successfully demonstrated an improved technique for blood stem cell transplantations in children that shows promise for those most likely to fail standard treatment for leukemia.

16 Oct 2006