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Science News for May 29, 2012


Commonly used painkillers may protect against skin cancer

A new study suggests that long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs) like aspirin can decrease the risk of squamous cell carcinoma and malignant melanoma. The findings indicate a potential cancer-protective effect of NSAID use, which should be considered when discussing benefits and harms.

SourceWiley·JournalCancer·DateMay 29, 2012

Progress of arachidonic acid biosynthesis in microorganisms

Researchers have successfully developed a genetically modified microorganism that produces high levels of arachidonic acid, a key fatty acid essential for infant nutrition. The microorganism, produced through ion beam mutation breeding, has shown promise for industrial application and potential use as a sustainable bio-diesel source.

SourceScience China Press·JournalChinese Science Bulletin·DateMay 29, 2012

Trafficked women experience violence and poor health

A systematic review found that trafficked women experience high levels of physical and sexual violence, as well as anxiety, depression, and post-traumatic stress disorder. The study also highlights the lack of evidence on the health consequences experienced by trafficked children, men, and individuals trafficked for labor exploitation.

SourcePLOS·JournalPLOS Medicine·DateMay 29, 2012

IU bisexuality studies focus on health, behavior and identity

Researchers at Indiana University have conducted two studies on bisexual individuals, finding that women who identify as bisexual or lesbian report better health when their sexual identity matches their recent sexual history. In contrast, queer-identified women's mental, physical, and sexual well-being is not related to the gender of t...

SourceIndiana University·JournalJournal of Bisexuality·DateMay 29, 2012

50-year cholera mystery solved

Researchers at the University of Texas at Austin have uncovered the mechanism behind V. cholerae's resistance to human immune responses. The discovery could lead to the development of a new class of antibiotics that target the bacteria's defenses, rather than directly killing them.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateMay 29, 2012

Greenland's current loss of ice mass

Research reveals Greenland's ice sheet is losing mass at an unprecedented rate, with melting and calving processes increasing by 0.07mm/year annually since 2005. The study provides insights into the impact of regional weather patterns on ice sheet dynamics.

SourceHelmholtz Association·JournalEarth and Planetary Science Letters·DateMay 29, 2012

GW researchers discover biomarker for advanced bile duct fibrosis and bile duct cancer

Researchers have identified a biomarker for advanced bile duct fibrosis and bile duct cancer caused by the Asian Liver Fluke, allowing for earlier detection and potentially saving lives. The Thai Ministry of Health has implemented testing for this biomarker in endemic regions to identify individuals at risk.

SourceGeorge Washington University Medical Center·JournalPLOS Neglected Tropical Diseases·DateMay 29, 2012

Is California preparing for climate change?

A majority of California's coastal planners acknowledge the need to prepare for climate change impacts like rising sea levels and increased floods. Despite challenges such as limited funding and staff resources, many professionals are actively planning and trying to understand their climate change risks.

The first chemical circuit developed

Researchers at Linköping University have developed the first chemical circuit, combining ion transistors to control and transport ions and charged biomolecules. This breakthrough enables chemical control of muscles and signaling systems in the human body, with potential applications for treating diseases.

SourceLinköping University·JournalNature Communications·DateMay 29, 2012

Mathematicians can conjure matter waves inside an invisible hat

A team of international mathematicians has devised an amplifier that can boost light, sound, or other waves while hiding them inside an invisible container. The researchers propose using this technology to manipulate matter waves, which could enable the creation of a quantum microscope to monitor electronic processes on computer chips.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·DateMay 29, 2012

Why chemotherapy fails

A study by Weizmann Institute scientists reveals that leukemia recurrence is often caused by 'cancer stem cells' that divide slowly, evading chemotherapy drugs. These cells can give rise to new rapidly-dividing cancer cells, making them a key target for new treatment approaches.

Study finds emissions from widely used cookstoves vary with use

A new study found that emissions from cookstoves are highly dependent on how they are used, and laboratory tests do not accurately reflect real-world operations. The research team developed a real-time analysis technique called Patterns of Real-Time Emissions Data (PaRTED) to measure emissions under different operating conditions.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalEnvironmental Science & Technology·DateMay 29, 2012

Better urban planning is essential to improve health of the 60 percent of the global population that will be living in cities by 2030

The Lancet Commission on Healthy Cities highlights the need for active planning to address urban health issues, with examples from Mumbai, London, and Bogota. The report recommends five key recommendations to improve urban health, including building political alliances and experimenting with diverse urban health projects.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 29, 2012

World's largest release of comprehensive human cancer genome data helps speed discoveries

The St. Jude Children's Research Hospital has released the world's largest comprehensive human cancer genome data, exceeding volume of all other sources combined. This valuable information is available for free access by researchers, accelerating disease research and potentially leading to new treatment options for childhood cancers.

SourceSt. Jude Children's Research Hospital·JournalNature Genetics·DateMay 29, 2012

Why do Scots die younger?

A study published in Public Health found that Scotland's higher mortality rates may be linked to the political direction of past decades, rather than single factors like smoking or poor diet. The researchers identified a range of potential explanations, including climate change and economic inequality.

SourceElsevier·JournalPublic Health·DateMay 29, 2012

New federal disclosure law may have little impact on drugs prescribed

A Colorado School of Public Health researcher found that a new federal disclosure law has little effect on the prescribing of certain medications, including statins and SSRIs. The study suggests that transparency is important but may not be enough to deter physicians from accepting payments from pharmaceutical companies.

SourceUniversity of Colorado Anschutz Medical Campus·JournalArchives of Internal Medicine·DateMay 29, 2012

Short movies stored in an atomic vapor

Researchers at Joint Quantum Institute store and replay two separate images, a feat of cinematography, using a room-temperature vapor of atoms. The new storage process has great promise for quantum information and may lead to the development of a random access memory for continuous variable quantum information.

SourceJoint Quantum Institute·JournalOptics Express·DateMay 29, 2012

OHSU Oregon National Primate Research Center develops new, safer method for making vaccines

Researchers at Oregon Health & Science University's ONPRC have discovered a new method for creating vaccines that is thought to be safer and more effective than current approaches. The approach uses hydrogen peroxide to inactivate viruses for use as vaccines, showing protective vaccine-induced immunity against three diseases: West Nile...

SourceOregon Health & Science University·JournalNature Medicine·DateMay 29, 2012