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Science News Archive November 2014 - Page 18


Page 18 of 31

Molecule fights cancer on 2 fronts

Researchers have developed a synthetic anti-cancer molecule JK-31 that blocks the signalling of a 'growth factor' chemical promoting blood vessel networks to feed tumours. The molecule also inhibits a protein controlling cancer cell division and proliferation.

SourceUniversity of Leeds·JournalPLOS ONE·DateNov 13, 2014

Oxytocin helps to better overcome fear

Researchers found that oxytocin facilitates extinction of conditioned fear in humans by reducing activity in the amygdala and increasing stimulation in fear-inhibiting regions. This basic research could lead to new treatments for anxiety disorders.

SourceUniversity of Bonn·JournalBiological Psychiatry·DateNov 13, 2014

New theory may help demystify pregnancy-related condition

A new theory proposes that preeclampsia is caused by the body's response to insufficient oxygen and nutrient supply to the growing fetus, leading to high blood pressure and organ damage. The condition can have fatal complications for pregnant women and their babies if left untreated.

SourceWiley·JournalAnaesthesia·DateNov 13, 2014

Mars, too, has macroweather

A new study by McGill University and UCL finds that Mars experiences a transitional 'macroweather' regime between weather and climate. The sun plays a major role in determining macroweather on Mars, with temperature and wind fluctuations occurring over 1.8 Martian days.

SourceMcGill University·JournalGeophysical Research Letters·DateNov 13, 2014

How adult fly testes keep from changing into ovaries

Researchers discovered a mutation in adult fruit flies that prevents testicular cells from transforming into ovaries, maintaining sex identity. The study's findings have implications for understanding cell fate conversions and may lead to new therapeutic approaches.

SourceCell Press·JournalDevelopmental Cell·DateNov 13, 2014

Researchers calculate 'hidden' emissions in traded meat

A study estimated embodied methane and nitrous oxide emissions in beef, chicken, and pork from livestock to countries where they are consumed. The researchers found a 19% increase in 'hidden' emissions over the past 20 years, with Russia receiving most of its emissions from Brazil and Argentina.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateNov 13, 2014

Guidelines say nearly all patients with chronic kidney disease should take statins

Two cholesterol management guidelines agree that nearly all patients with chronic kidney disease should receive statins, but 50% of those recommended are not taking them. The study found the Pooled Cohort risk equations to be accurate among people with CKD, indicating a valid tool for estimating heart disease risk.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateNov 13, 2014

New process isolates promising material

Researchers at Northwestern University have developed a method to isolate atomically thin sheets of molybdenum disulfide (MoS2), a promising material for optoelectronics and electronics. The process uses copolymer-assisted gradient ultracentrifugation, allowing for scalable isolation of single-layer, bilayer, or trilayer MoS2 sheets.

SourceNorthwestern University·JournalNature Communications·DateNov 13, 2014

Architecture of a lipid transport protein revealed

The structure determination of a lipid scramblase reveals a novel protein architecture that enables the transport of lipids across cell membranes. The discovery provides insight into the activation of the protein by calcium and has implications for understanding previously unknown mechanisms of lipid transport.

SourceUniversity of Zurich·JournalNature·DateNov 13, 2014

Britain's obese in denial about their weight

A majority of obese people in Britain deny being obese, describing themselves as 'just right' or 'very overweight' instead. The study suggests that media coverage and public health campaigns may be contributing to this phenomenon, as people become less likely to recognize the health risks associated with their weight.

SourceCancer Research UK·JournalBMJ Open·DateNov 13, 2014

UC Davis investigational medication used to resolve life-threatening seizures in children

Researchers at UC Davis and Northwestern University have found an investigational medication to effectively treat children with life-threatening seizures, resolving symptoms without adverse effects. The medication, a formulation of allopregnanolone, showed promising results in two clinical cases, where patients were weaned off general ...

SourceUniversity of California - Davis Health·JournalAnnals of Neurology·DateNov 12, 2014

Hope for those with social anxiety disorder: You may already be someone's best friend

People with social anxiety disorder tend to think their friendships are worse than they really are, but a new study reveals this perception may be misplaced. The study found that friendships of people with social anxiety disorder were not significantly worse than those without the disorder, contrary to their self-reported experiences.

SourceWashington University in St. Louis·JournalJournal of Abnormal Psychology·DateNov 12, 2014

Self-inflation harms kids' relationships at school

A new study by Katrin Rentzsch and Michela Schröder-Abé found that unrealistic views of one's academic abilities can damage a child's relationship with others in the classroom. Students who tend to feel unrealistically superior to their peers are less liked by them, even at habitual levels.

SourceSAGE·JournalSocial Psychological and Personality Science·DateNov 12, 2014