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Science News for April 20, 2009


Online reporting system could track surgical complications

A Web-based reporting system helped identify four event patterns from morbidity reports and three from near-miss reports, addressing issues like chest tube placements and nurse-to-physician communications. However, under-reporting was disappointing, with only 27.2% of readmissions and 41.6% of inpatient deaths reported.

SourceJAMA Network·JournalArchives of Surgery·DateApr 20, 2009

The life histories of the earliest land animals

Researchers at Uppsala University and colleagues analyze fossil upper arm bones from ancient vertebrates, revealing two distinct life histories. Ichthyostega, a more terrestrial animal, undergoes significant changes in limb shape and muscle attachments as it grows, while Acanthostega remains aquatic with less dramatic transformations.

SourceUppsala University·JournalScience·DateApr 20, 2009

Snatched from the air

Researchers have created a novel reaction scheme to efficiently convert carbon dioxide into methanol with minimal energy input. The method utilizes an N-heterocyclic carbene catalyst and silane as the reducing agent, enabling the use of air-borne CO2 as a renewable resource.

SourceWiley·DateApr 20, 2009

Barely legal -- new study into whether alcohol affects perceptions of age

A new study published in the British Journal of Psychology found that consuming alcohol did not affect how men judged the age of women. In fact, researchers found that young females are typically viewed as being older than they actually are. However, make-up and alcohol consumption did have an impact on attractiveness ratings, with you...

SourceUniversity of Leicester·JournalBritish Journal of Psychology·DateApr 20, 2009

6 young ASU faculty earn NSF Career awards

Six Arizona State University faculty members have earned NSF Career awards for their groundbreaking research projects. Junseok Chae is developing protein-based biosensors, while Yi Chen aims to unlock the Internet's hidden data reservoir. Hanqing Jiang seeks to harness carbon nanotubes for practical applications.

Study identifies genes that protect against aging

Researchers at the University of Liverpool have developed a new method to identify genes that help protect the body from age-related changes. The study analyzed over five million gene measurements across multiple tissue types in animals and humans, highlighting key biological mechanisms that allow the body to adapt to aging.

SourceUniversity of Liverpool·JournalBioinformatics·DateApr 20, 2009

JCI table of contents: April 20, 2009

A study found that consuming fructose-sweetened beverages increases visceral adiposity and lipids while decreasing insulin sensitivity in overweight/obese humans. This increase in heart attack susceptibility remains unknown due to long-term effects of fructose over-consumption.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 20, 2009

Embargoed news from Annals of Internal Medicine

Researchers found that patient-tailored treatment regimens may have a more positive impact than strict glycemic control in managing type 2 diabetes. Additionally, universal insurance coverage may reduce race-based health care disparities by improving chronic disease control among patients from different racial or ethnic groups.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateApr 20, 2009

FANTOM findings boost for biologists

The FANTOM4 consortium has published several milestone papers in Nature Genetics and BioMed Central journals, providing new data on genomic regulatory blocks and chromatin conformation signatures. These findings have the potential to revolutionize our understanding of gene regulation and cell differentiation.

SourceBMC (BioMed Central)·JournalGenome Biology·DateApr 20, 2009

Repairing a 'bad' reputation?

A team of scientists found that the p75 receptor molecule has a neuroprotective effect on the sympathetic nervous system in mice with Alzheimer's disease, challenging the prevailing view of its harmful role. The study suggests that p75 could be a target for new protocols to manage dementia and memory loss.

SourceSalk Institute·JournalProceedings of the National Academy of Sciences·DateApr 20, 2009

Defining the link between anti-TNF therapies and increased tuberculosis

A study by Steffen Stenger and colleagues found that anti-TNF therapies, such as infliximab, decrease the immune system's ability to fight infections, including tuberculosis. The researchers identified a key immune cell subset, CD45RA+ effector memory CD8+ T cells, which plays a major role in targeting the bacterium that causes TB.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 20, 2009

Grouping muscles to make controlling limbs easier

A team of researchers at Northwestern University discovered a new approach to control movement in limbs by grouping muscles, which could simplify the restoration of muscle movements in people with paralysis. By reducing the number of variables, this method can achieve similar results as controlling individual muscles.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateApr 20, 2009

When every photon counts

Researchers found that nocturnal mammals have an inverted chromatin arrangement in their rod nuclei, which acts as micro-lenses to focus light. This unique organization enhances night vision and provides new insights into the evolution of mammalian retinas.

SourceMax-Planck-Gesellschaft·JournalCell·DateApr 20, 2009

Middle-school math classes are key to closing racial academic achievement gap

A University of Illinois study suggests that challenging middle-school math classes and increased access to advanced courses can close the racial academic achievement gap. The research found that students who take more advanced math courses in middle school have better academic outcomes and are less likely to fall behind.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalAmerican Educational Research Journal·DateApr 20, 2009

Surgical education programs have demand for physician assistants and nurse practitioners

A study in Journal of the American College of Surgeons found that surgical education programs are increasingly hiring physician assistants and nurse practitioners (PEs) to alleviate administrative burdens on residents. PEs were utilized mostly for procedural and administrative duties, with nearly 80% of programs having at least one PE.

SourceWeber Shandwick Worldwide·JournalJournal of the American College of Surgeons·DateApr 20, 2009

Robot improves suture proficiency more rapidly for surgeons inexperienced in laparoscopic techniques

A study published in the Journal of the American College of Surgeons found that robotic-assisted laparoscopic surgery (RALS) allows inexperienced surgeons to learn and perform suturing more efficiently than traditional methods. The study showed RALS resulted in shorter procedural times and improved outcomes compared to freehand laparos...

SourceWeber Shandwick Worldwide·JournalJournal of the American College of Surgeons·DateApr 20, 2009

Study: Lizards bask for more than warmth

Researchers found that chameleons alter their sunbathing behavior in response to their dietary vitamin D intake, regulating UV exposure to maintain optimal levels. The study showed remarkable accuracy in the chameleons' ability to gauge and adjust their UV exposure based on internal vitamin D levels.

SourceUniversity of Chicago Press Journals·JournalPhysiological and Biochemical Zoology·DateApr 20, 2009

Robot-assisted surgery appears useful for removal of some head and neck tumors

Researchers assessed robot-assisted surgery in treating selected head and neck cancers, finding that the procedure offers limited surgical morbidity, reduced hospital stays, and improved lesion visualization. The study involved 36 patients with oral cavity, throat, or larynx tumors, yielding successful robotic resections in 81% of cases.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateApr 20, 2009

New insight into Rett syndrome severity

A research collaboration has identified a genetic variation that influences Rett syndrome severity, providing potential new target for treatment. Patients with the normal BDNF genetic variant experienced less severe symptoms, including later onset and fewer seizures.

SourceResearch Australia·JournalNeurology·DateApr 20, 2009

International team cracks mammalian gene control code

A recent breakthrough in mammalian genome research has revealed a complex network of genetic regulators that subtly influence gene expression in different cells. The discovery of tiny RNAs and retrotransposons has provided valuable insights into the mechanisms behind cellular development and transformation.

SourceResearch Australia·JournalNature Genetics·DateApr 20, 2009

Integrated regional networks give communities rapid access to life-saving treatment of heart attacks

A new study published in the Journal of the American College of Cardiology: Cardiovascular Interventions found that organized STEMI networks consistently provide the fastest treatment of acute heart attacks, with 86% of patients receiving skilled coronary intervention within 90 minutes. This improvement surpasses the American College o...

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateApr 20, 2009