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Science News for May 26, 2013


Scientists narrow global warming range

Researchers used a new method combining observations and climate models to project future warming, finding 63% of uncertainty came from single sources such as climate sensitivity. The study suggests that exceeding 6 degrees warming is unlikely, while exceeding 2 degrees is very likely for business-as-usual emissions.

SourceUniversity of Melbourne·JournalNature Climate Change·DateMay 26, 2013

Climate researchers discover new rhythm for El Niño

Researchers discovered a 15-month wind pattern that explains El Niño's close ties to the annual cycle. This unusual atmospheric pattern triggers droughts and floods in various regions. The study suggests that improved climate models will improve El Niño forecasts.

SourceUniversity of Hawaii ‑ SOEST·JournalNature Geoscience·DateMay 26, 2013

New gene discovery for babies born with hole in the heart

Researchers discovered a new gene associated with congenital heart disease, specifically atrial septal defect (ASD), which may help improve genetic counselling and understanding of normal development. The study involved over 2,000 patients and found a strong association between the Msx1 gene and risk of ASD.

SourceUniversity of Manchester·JournalNature Genetics·DateMay 26, 2013
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New 1-step process for designer bacteria

Researchers at the University of Adelaide have developed a new one-step process called 'clonetegration' that simplifies the production of designer bacteria. This faster method enables multiple rounds of genetic engineering on the same bacteria and simultaneous integration of multiple genes, accelerating therapeutic drug development.

SourceUniversity of Adelaide·JournalACS Synthetic Biology·DateMay 26, 2013

Finding a genetic cause for severe childhood epilepsies

A large scientific study has discovered two new genes associated with severe seizure disorders in infants and children. The finding will lead to new tests to diagnose these conditions and promises to improve outcomes for affected families.

SourceUniversity of Melbourne·JournalNature Genetics·DateMay 26, 2013

RELAX-AHF shows first positive findings in HFpEF patients

The RELAX-AHF trial demonstrated serelaxin's efficacy in relieving dyspnea in HFpEF patients, particularly within the first 24 hours. The VIVIDD trial also showed vildagliptin to be non-inferior to placebo in improving LVEF in HFrEF patients with type 2 diabetes.

SourceEuropean Society of Cardiology·DateMay 26, 2013

Stanford researchers identify genetic suspects in sporadic Lou Gehrig's disease

Researchers at Stanford University School of Medicine have identified mutations in genes that encode chromatin regulators, which may contribute to the development of sporadic ALS. The study found 25 de novo mutations, including five in chromatin regulatory proteins, which could serve as potential therapeutic targets.

SourceStanford Medicine·JournalNature Neuroscience·DateMay 26, 2013

Scientists discover the origin of a giant synapse

Researchers have identified a protein responsible for controlling the growth of gigantic synapses in the auditory part of the brain. These massive synapses allow for rapid signal transmission, outpacing other neuronal circuits by a fraction of a millisecond, enabling humans to pinpoint sound sources with remarkable accuracy.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Neuroscience·DateMay 26, 2013
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Models from big molecules captured in a flash

Researchers develop a new method to model large biomolecules in their native state using X-ray flash data, providing insights into protein structures and dynamic behavior. This technique promises to solve the shapes of more than 80,000 proteins in a static state and offer clues on individual components of mixtures.

SourceDOE/Lawrence Berkeley National Laboratory·JournalPhysical Review Letters·DateMay 26, 2013