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Science News Archive June 2015 - Page 15


Page 15 of 36

Identified the epigenetic basis of CVID through the study of identic twins

Researchers identified epigenetic alterations in CVID patients by comparing monozygotic twins. They found higher DNA methylation levels and impaired DNA demethylation in immunodeficient B cells, leading to reduced antibody production and altered cell maturation. These findings provide new insights into the diagnosis and treatment of CVID.

SourceIDIBELL-Bellvitge Biomedical Research Institute·JournalNature Communications·DateJun 17, 2015

A new look at surface chemistry

A new analytical method using high-resolution scanning electron microscopy (HRSEM) has resolved the unique atomic structure at the surface of a material for the first time. This breakthrough enables direct information on both surface and bulk atoms, improving understanding of critical reactions such as catalysis and corrosion.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Communications·DateJun 17, 2015

Mold unlocks new route to biofuels

Researchers at the University of Manchester have identified the mechanism and structure of enzymes that produce hydrocarbons from yeast moulds. This discovery provides a new route to producing alpha-olefins, a key intermediate in various industrial applications.

SourceUniversity of Manchester·JournalNature·DateJun 17, 2015

The Lancet: Patients with complications after major surgery more likely to survive if readmitted to the same hospital

A national study involving over 9 million Medicare patients found that patients rehospitalized with complications after major surgery are 26% more likely to survive if they return to the hospital where they had their operation. The researchers suggest maintaining continuity of care when readmissions occur is a key predictor of survival.

SourceThe Lancet·JournalThe Lancet·DateJun 17, 2015

NIH-funded researchers identify new genetic immune disorder

Researchers have identified a new genetic immune disorder, DOCK2 deficiency, which causes debilitating infections and combined immunodeficiency in children. Early screening for the disease can prevent life-threatening infections, and understanding its role may inform the study of more common immune system disorders.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNew England Journal of Medicine·DateJun 17, 2015

Fructose powers a vicious circle

Researchers discover fructose's role in heart failure, finding it efficiently converts to fat and stimulates glycolysis. Fructose also activates HIF, leading to increased KHK-C production and a vicious cycle of growth and damage.

SourceETH Zurich·JournalNature·DateJun 17, 2015

How much do consumers know about new sunscreen labels?

A study surveyed patients about their knowledge of new sunscreen labels and found that most understood protection against sunburns but struggled with broad-spectrum protection. Fewer than half correctly identified terminology indicating skin cancer protection, leading to calls for improved labeling clarity.

SourceJAMA Network·JournalJAMA Dermatology·DateJun 17, 2015

Value of nonprofit hospital tax exemption nearly doubled over 9 years, reaching $24.6 billion in 2011

The study found that nonprofit hospitals spent only a small fraction of their 'charity care and community benefit' on efforts aimed at improving the health of the communities they serve. In 2011, hospitals allocated less than 1% of total spending towards community health improvement.

Nightingales show off their fathering skills through song

Research published in BMC Evolutionary Biology found that male nightingales' songs contain specific features, such as repeated song sequences and varied song types, which signal their ability to care for offspring. These song features are linked to greater paternal efforts, including more frequent feeding and defense of the nest.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateJun 17, 2015

Aperiodic crystals and beyond

The article explores aperiodic crystals and their implications on our understanding of crystalline order. Recent research has shown that the current definition of crystals, based on point-like diffraction, may need revision as new materials with non-trivial point components in their diffraction are discovered.

SourceInternational Union of Crystallography·JournalActa Crystallographica Section B·DateJun 17, 2015