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Science News Archive June 2013 - Page 12


Page 12 of 30

Atherosclerosis in abdominal aorta may predict adverse cardiovascular events, UTSW scientists report

Researchers at UT Southwestern Medical Center used MRI to measure aortic atherosclerosis and found that thicker walls were associated with a higher risk of cardiovascular events, including heart attacks. A smaller plaque buildup was linked to increased risk of peripheral vascular occlusion, stroke, and abdominal aortic aneurysms.

SourceUT Southwestern Medical Center·JournalRadiology·DateJun 18, 2013

Long distance calls by sugar molecules

Researchers discovered that glycans can order the random network of water molecules above them, creating clusters or layers. This effect may help synovial fluid lubricate joints and influence how receptors recognize glycan coats on cells.

SourceETH Zurich·JournalBiophysical Journal·DateJun 18, 2013

Pioneering breakthrough of chemical nanoengineering to design drugs controlled by light

Researchers have synthesized peptides that change shape upon irradiation with light, allowing control of protein-protein interactions and endocytosis. These molecules have immediate applicability for studying cancer cells and developmental biology, paving the way for optopharmacology and personalized medicine.

Respect may be the key to stopping patient 'no shows'

Research suggests that improved training in communication and interpersonal skills may help improve health, immune function, and reduce the spread of HIV. Patients who feel respected by their physicians are more likely to keep scheduled appointments and adhere to medical regimens.

SourceJohns Hopkins Medicine·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateJun 18, 2013

Early-life air pollution linked with childhood asthma in minorities, in study

A research team at UCSF has found that exposure to nitrogen dioxide during infancy is strongly linked with later development of childhood asthma among African Americans and Latinos. The study indicates that traffic-related pollution might be a cause of the disease, calling for tightened U.S government standards for annual exposure to NO2.

SourceUniversity of California - San Francisco·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJun 18, 2013

New drug could help AMD sufferers

Researchers at the University of Iowa have found that Eylea can effectively treat wet AMD patients who were previously unresponsive to Avastin and Lucentis. After three monthly injections, half of the eyes treated with Eylea showed reduced fluid accumulation, while one in five experienced improved vision.

SourceUniversity of Iowa·JournalAmerican Journal of Ophthalmology·DateJun 18, 2013

It's the way you tell em': Study discovers how the brain controls accents and impersonations

A study led by Royal Holloway University researcher Carolyn McGettigan discovered brain regions involved in impersonations and accents. The team found that voice changes engage the left anterior insula and inferior frontal gyrus, while accent comparisons activate areas in the posterior superior temporal/inferior parietal cortex.

SourceRoyal Holloway, University of London·JournalJournal of Cognitive Neuroscience·DateJun 18, 2013

Seismic gap outside of Istanbul

Researchers have identified a 30km-long fault zone near Istanbul as a potential starting point for a strong earthquake. The area, located just 15-20km from the historic city center, has shown no seismic activity in recent years.

SourceHelmholtz Association·JournalNature Communications·DateJun 18, 2013

First risk assessment of shale gas fracking to biodiversity

A recent study published in Annals of the New York Academy of Sciences explores the threat posed by shale gas fracking to biodiversity. The research reveals potential impacts on ecosystems, including salinization of soils, surface waters, and fragmentation of forests.

SourceWiley·JournalAnnals of the New York Academy of Sciences·DateJun 17, 2013

Study finds the sweet spot -- and the screw-ups -- that make or break environmental collective actions

A study by Michigan State University found that there is a sweet spot – a group size at which the action is most effective. This sweet spot can increase and be more effective until free-riders weigh down the effort's momentum, while small groups can be powerful until individuals become overwhelmed.

SourceMichigan State University·JournalProceedings of the National Academy of Sciences·DateJun 17, 2013

Preventing eggs' death from chemotherapy

Researchers at Northwestern University have found a molecular pathway that prevents the death of immature ovarian eggs due to chemotherapy, potentially preserving fertility and endocrine function. Adding a specific chemotherapy drug combination may protect young women's reproductive health during cancer treatment.