Body

(Boston) – A recent study led by Boston University School of Medicine (BUSM) demonstrates that the A2b-type adenosine receptor, A2bAR, plays a significant role in the regulation of high fat, high cholesterol diet-induced symptoms of type 2 diabetes. The findings, which are published online in PLoS ONE, also identify A2bAR as a potential target for the treatment of type 2 diabetes.

Fighting "superbugs" – strains of pathogenic bacteria that are impervious to the antibiotics that subdued their predecessor generations – has required physicians to seek new and more powerful drugs for their arsenals. Unfortunately, in time, these treatments also can fall prey to the same microbial ability to become drug resistant.

Boston, MA – Men diagnosed with prostate cancer are less likely to die from the disease than from largely preventable conditions such as heart disease, according to a new study from Harvard School of Public Health (HSPH). It is the largest study to date that looks at causes of death among men with prostate cancer, and suggests that encouraging healthy lifestyle changes should play an important role in prostate cancer management.

CORVALLIS, Ore. – A new study concludes that among older adults – especially those who are frail – low levels of vitamin D can mean a much greater risk of death.

The randomized, nationally representative study found that older adults with low vitamin D levels had a 30 percent greater risk of death than people who had higher levels.

Overall, people who were frail had more than double the risk of death than those who were not frail. Frail adults with low levels of vitamin D tripled their risk of death over people who were not frail and who had higher levels of vitamin D.

Genome sequences of African hunter-gatherers from three different populations reveal insights into how humans have adapted to distinct environments over evolutionary history. By sequencing whole genomes of individuals within these groups, a team of scientists has substantially expanded knowledge about the scope of genetic diversity in humans, publishing their findings on July 26th in the journal Cell.

PHILADELPHIA — Human diversity in Africa is greater than any place else on Earth. Differing food sources, geographies, diseases and climates offered many targets for natural selection to exert powerful forces on Africans to change and adapt to their local environments. The individuals who adapted best were the most likely to reproduce and pass on their genomes to the generations who followed.

A Simon Fraser University graduate student's collaboration with her thesis supervisor on how a particular type of protein controls the growth of another protein could advance cancer research.

Their findings have just been published in the online July 26 issue of Current Biology, a CellPress journal.

Esther Verheyen, an SFU professor of molecular biology and biochemistry, has helped her Master's of Science student Joanna Chen uncover how Hipk can be manipulated to stop Yorkie from causing tissue overgrowth in flies.

Patients with the most common type of lung cancer are notoriously insensitive to chemotherapy drugs, including cisplatin. New findings related to the cellular pathways that regulate responses to cisplatin have now been published by Cell Press on July 26th in the journal Cell Reports. The findings reveal a potential biomarker that can be used to predict how these patients will respond to chemotherapy, as well as the patients' overall prognosis, paving the way for personalized treatment strategies.

URBANA – A lot of time, effort, and money are spent by agencies, municipalities, and other non-governmental organizations to inform and educate the public about environmental concerns. Could these groups collaborate to inform the public about an environmental concern even though their beliefs may be very different? Two studies suggest that they can and should.

We all know that, for the most part, it's wrong to kill other people, it's inappropriate to wear jeans to bed, and we shouldn't ignore people when they are talking to us. We know these things because we're bonded to others through social norms – we tend to do things the same way people around us do them and, most importantly, the way in which they expect us to do them.

Social norms act as the glue that helps to govern social institutions and hold humans societies together, but how do we acquire these norms in the first place?

Predictors of disease severity in human papillomavirus-derived head and neck cancer, tobacco use, and the dramatic benefits of robotic surgery in people with head and neck cancer are among landmark research presented by Mount Sinai School of Medicine at the Eighth International Conference on Head and Neck Cancer. The meeting took place from July 21-25, 2012 in Toronto.

Highlights of Mount Sinai research at the American Head and Neck Society conference:

Transoral Robotic Surgery Shows Significant Promise in Hard-to-Treat Smokers with Head and Neck Cancer

RICHMOND, Va. (July 26, 2012) – Patients suffering from the chronic lung condition COPD, which is the third-leading cause of death and disability in the United States, may benefit greatly from a three-times-a-week dose of an antibiotic, according to a study by Virginia Commonwealth University physicians published in today's issue of the New England Journal of Medicine.

New Rochelle, NY, July 26, 2012— Administering high-doses of interleukin-2 (IL-2) has been the preferred treatment for patients with stage IV metastatic melanoma. An article published in the current issue of Cancer Biotherapy and Radiopharmaceuticals, a peer-reviewed journal from Mary Ann Liebert, Inc. (http://www.liebertpub.com), explores whether or not this regimen is still the most effective.

Roofers and road construction workers who use hot asphalt are exposed to high levels of polycyclic aromatic hydrocarbons (PAHs). A University of Colorado Cancer Center study published this week in the British Medical Journal Open shows that roofers have higher PAH blood-levels after a shift than before and that these high levels of PAHs are linked with increased rates of DNA damage, and potentially with higher cancer risk.

EAST LANSING, Mich. — The secret to the deadly 2011 E. coli outbreak in Germany has been decoded, thanks to research conducted at Michigan State University.

The deadliest E. coli outbreak ever, which caused 54 deaths and sickened more than 3,800 people, was traced to a particularly virulent strain that researchers had never seen in an outbreak before. In the current issue of the academic journal PLoS ONE, a team of researchers led by Shannon Manning, MSU molecular biologist and epidemiologist, suggests a way to potentially tame the killer bacteria.