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Science News for March 16, 2011


Less weight gain found among African-American women in dense urban areas

Researchers from Boston University School of Medicine found that African-American women who live in more densely populated urban areas tend to gain less weight over a six-year period. The study, which analyzed data from the Black Women's Health Study, suggests that policies promoting denser and urban residential development may help ad...

SourceBoston University School of Medicine·JournalAmerican Journal of Preventive Medicine·DateMar 16, 2011

Solving the bandwidth bottleneck

A team of University of Texas at Austin engineers is working on novel algorithms to enhance the efficiency of mobile video streaming, reducing the demand on wireless networks. The goal is to deliver high-quality videos with fewer bits, while improving network capacity and reducing interference from base stations.

Sirolimus therapy alleviates symptoms of lung disease LAM

A new study sponsored by the National Heart, Lung, and Blood Institute found that sirolimus therapy can improve lung function and quality of life in individuals with lymphangioleiomyomatosis (LAM). The treatment was shown to slow disease progression and improve clinical outcomes in patients with this rare and progressive lung disease.

SourceNIH/National Heart, Lung and Blood Institute·JournalNew England Journal of Medicine·DateMar 16, 2011

3 in 4 domestic violence victims go unidentified in emergency rooms, Penn study shows

A new Penn study reveals that nearly 80% of women who report domestic assaults to the police seek medical care in emergency rooms, but only 28% are ever identified as victims of abuse. The study highlights the need for routine screening and referrals to social services to help protect these women.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of General Internal Medicine·DateMar 16, 2011

HIV research included in journal

A recent publication in the American Journal of Reproductive Immunology highlights the need to establish guidelines for studying HIV's entry point: the female genital tract. Research attention has shifted from blood to this area, but proper sampling methods and assays are crucial for accurate results.

SourceCare New England·JournalAmerican Journal Of Reproductive Immunology·DateMar 16, 2011

Hopkins researchers use light to move molecules

Researchers at Johns Hopkins Medicine have developed a tool that uses light to move and interact with individual molecules in living cells. This allows for greater control over cellular processes, enabling scientists to study the role of specific proteins and their interactions in cell behavior.

SourceJohns Hopkins Medicine·JournalJournal of the American Chemical Society·DateMar 16, 2011

New therapy found for rare lung disorder

Researchers at University of Cincinnati have found that sirolimus stabilizes lung function in women with lymphangioleiomyomatosis (LAM), a progressive and cystic lung disease. The Multicenter International LAM Efficacy of Sirolimus trial showed improved measures of functional performance, quality of life, and reduced VEGF-D levels.

SourceUniversity of Cincinnati·JournalNew England Journal of Medicine·DateMar 16, 2011

New study pinpoints why some microbial genes are more promiscuous than others

A new study has identified the reason behind the variability in gene transfer among bacteria, revealing that genes involved in core cellular functions are less likely to be acquired. The study found that well-connected genes, which interact with many partners, are less likely to be transferred into a new host.

SourceNational Evolutionary Synthesis Center (NESCent)·JournalMolecular Biology and Evolution·DateMar 16, 2011