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Science News Archive June 2013 - Page 27


Page 27 of 30

Quantum model helps solve mysteries of water

Researchers developed a quantum Drude oscillator (QDO) that mimics the behavior of real water molecules, producing a realistic liquid with well-developed hydrogen bonds and other properties. The 'bottom up' approach has clear biological applications and potential for simulating other substances.

SourceNational Physical Laboratory·JournalPhysical Review Letters·DateJun 4, 2013

Innate immunity

A team of researchers has identified an enzyme called cGAS that detects cytosolic DNA, triggering the innate immune response. This discovery has significant clinical implications for understanding autoimmune diseases and developing new therapies.

National review: Non-adherence among teenage heart transplant recipients is widespread, often fatal

A new study found that 9% of pediatric and adolescent heart transplant recipients experience non-adherence within two years of receiving their transplant. The risk of mortality among non-adhering patients is significantly higher, with a 26% chance of death within one year and 33% within two years.

SourceBoston Children's Hospital·JournalThe Journal of Heart and Lung Transplantation·DateJun 4, 2013

Sexual selection in the sea

Female southern bottletail squid consume male ejaculates, using nutrients for egg growth, and target larger females to minimize consumption. This strategic behavior affects males' chances of fertilizing eggs.

SourceMonash University·JournalBiology Letters·DateJun 4, 2013

Weather conditions do not affect fibromyalgia pain or fatigue

A study of 333 female patients with fibromyalgia found that weather conditions had no significant impact on their pain and fatigue symptoms. Individual patients may still experience some sensitivity to certain weather conditions, but this is not associated with demographic or mental health status.

SourceWiley·JournalArthritis Care & Research·DateJun 4, 2013

Exposure to rocket attacks in Israel increases adolescent violence -- Ben-Gurion U. study

A new study by Ben-Gurion University of the Negev found that chronic exposure to rocket attacks from Gaza into Israel is associated with an increase in severe adolescent violence. The study followed 362 Israeli adolescents and found that prolonged exposure predicted a steep increase in violent incidents.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateJun 4, 2013

Quality improvement educational initiative proves to be a model program for surgical residents

A novel graduate medical education initiative at Northwestern University Feinberg School of Medicine enhances surgical residents' skills in quality improvement. The program, which began in 2008, teaches residents the fundamentals of QI theory and pairs them with process improvement mentors for hands-on projects.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateJun 4, 2013

Genetic editing shows promise in Duchenne muscular dystrophy

Researchers at Duke University have developed a novel genetic editing technique that repairs faulty genes responsible for Duchenne muscular dystrophy. The approach, which uses artificial enzymes to modify gene sequences, has shown promise in treating the disease, with over 60% of patients potentially benefiting from this new method.

SourceDuke University·JournalMolecular Therapy·DateJun 4, 2013

Neighborhood features could prevent obesity

A five-year longitudinal study found that living in neighborhoods with healthier food environments significantly reduces the risk of obesity. The study, conducted across six US cities, analyzed data from over 4,000 adults and found that healthy food options and walkability are key predictors of lower obesity rates.

SourceDrexel University·JournalObesity·DateJun 4, 2013

Detecting disease with a smartphone accessory

Cornell University engineers have developed a new smartphone-based system for in-the-field detection of Kaposi's sarcoma and other conditions, utilizing a plug-in optical sensor and disposable microfluidic chips. This novel technique provides a quick method to quantify viral DNA levels, requiring minimal training and expertise.

SourceOptica·DateJun 4, 2013

Heart health matters to your brain

A new study from Wake Forest Baptist Medical Center suggests that cardiovascular disease (CVD) plays a role in cognitive decline before it is clinically apparent in patients with type 2 diabetes. The research found that CVD risk factors, such as calcified plaque and vascular status, contribute to type 2 diabetes-related cognitive decline.

SourceAtrium Health Wake Forest Baptist·JournalJournal of Diabetes and its Complications·DateJun 4, 2013

Molecular switch for cheaper biofuel

Researchers have identified a genetic mutation that allows fungi to continuously produce enzymes for breaking down cellulose and xylan into sugar molecules. This discovery enables the production of cheap biofuel from lignocellulose, reducing competition with food production and making it more economically viable.

SourceVienna University of Technology·JournalBiotechnology for Biofuels·DateJun 3, 2013

Mosquitoes reared in cooler temperatures more susceptible to viruses that can affect human health

A recent study published in PLOS Neglected Tropical Diseases found that mosquitoes reared in cooler temperatures have weakened immune systems, making them more vulnerable to viral diseases like West Nile fever and chikungunya fever. The research suggests that temperature may play a significant role in the transmission of these diseases.

SourceVirginia Tech·JournalPLOS Neglected Tropical Diseases·DateJun 3, 2013

Technique could identify patients at high risk of stroke or brain hemorrhage

Researchers developed a new method to measure cerebral blood flow in children on ECMO, finding that those who experienced strokes or brain bleeds had significantly higher blood flow rates than normal, two to six days prior. This technique could help physicians predict and prevent complications, with potential lead time for intervention.

SourceNationwide Children's Hospital·JournalPediatric Critical Care Medicine·DateJun 3, 2013

Multiple sclerosis: Back to basics?

Current MS treatments focus on dampening the immune system, but Dr. Peter K. Stys suggests an alternative: addressing nervous system degeneration as a primary cause of the disease. Recent studies indicate that neuronal structures are also damaged in MS.

SourceFaculty of 1000·JournalF1000 Medicine Reports·DateJun 3, 2013

Harper Government and Genome Canada launch new program

The Canadian government has launched a new program, Genomic Applications Partnership Program (GAPP), to move genomics-based solutions from laboratories to the marketplace. The program aims to stimulate investment in projects addressing real-world challenges and opportunities in genomics, with a total investment of $90 million.

PET finds increased cognitive reserve levels in highly educated pre-Alzheimer's patients

Research published in The Journal of Nuclear Medicine found that highly educated pre-Alzheimer's patients exhibit increased neural reserve and compensation, leading to better coping mechanisms. This suggests that education level plays a crucial role in determining cognitive reserve against the disease.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateJun 3, 2013

Wayne State researchers seek to determine impacts of differential speed limits on state freeways

Researchers at Wayne State University are conducting a comprehensive study on the impacts of differential speed limits for cars and trucks on Michigan's state freeways. The study aims to determine whether raising truck speed limits would improve safety or have negative effects on air quality, pavement quality, and freight operations.