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Science News Archive March 2017 - Page 21


Page 21 of 41

Cause of obsessive-compulsive disorder discovered

The absence of protein SPRED2 alone can trigger excessive grooming behavior in mouse models. The study identifies the Ras/ERK-MAP kinase cascade as a key signaling pathway involved in obsessive-compulsive disorder (OCD). Administering an inhibitor to this pathway improves OCD symptoms, suggesting new potential treatments.

SourceUniversity of Würzburg·JournalMolecular Psychiatry·DateMar 16, 2017

Treating cocaine addiction by reducing our appetite for drugs?

A new study in Biological Psychiatry suggests that blocking hypocretin signaling may provide a new avenue for treating cocaine addiction. The study found that blocking hypocretin signaling reduced cocaine intake in rats allowed long access to cocaine, and restored the normal GABAergic system.

SourceElsevier·JournalBiological Psychiatry·DateMar 16, 2017

Scientists develop light-controllable tool to study CaMKII kinetics in learning and memory

Researchers at Max Planck Florida Institute for Neuroscience developed a photo-inducible CaMKII inhibitor to study intracellular signaling cascades. The tool revealed that CaMKII activation persists for approximately 1 minute, contradicting previous studies, and is necessary only for short periods of time for LTP and animal learning.

Mount Sinai to present clinical findings at American College of Cardiology Scientific Sessions 2017

Researchers from Mount Sinai Health System will present their study on the predictive value of the Fuster-BEWAT score for predicting the extent of subclinical atherosclerosis in healthy individuals, and another study exploring determinants of subclinical atherosclerosis in the absence of cardiovascular risk factors.

How plankton cope with turbulence

Researchers discovered how plankton cope with turbulent layers in the ocean. Plankton cells change their shape from asymmetric to egg-shaped structures, allowing them to swim downwards and avoid damage. This adaptation provides an evolutionary advantage for the population, as only half of the cells are affected by turbulence.

SourceETH Zurich·JournalNature·DateMar 15, 2017

Dark matter less influential in galaxies in early universe

A team of astronomers found that distant galaxies were dominated by normal matter, with dark matter playing a smaller role. The study used the KMOS and SINFONI instruments to measure galaxy rotation velocities and created an average rotation curve, which also showed a decreasing velocity trend away from the centers of the galaxies.

SourceESO·JournalNature·DateMar 15, 2017

Copper-bottomed deposits

Scientists at Université de Genève studied over 100,000 combinations to establish a model predicting the amount of copper present in deposits. The researchers found that factors such as magma depth and duration determine the quantity of copper, with optimal conditions ranging from 20 km depth and 2 million years injection time.

SourceUniversité de Genève·JournalScientific Reports·DateMar 15, 2017

More IV fluids, fewer c-sections

A new study by Thomas Jefferson University found that women who received IV fluids at a higher rate during labor were less likely to need a cesarean section and had shorter labors. The study pooled data from seven small clinical trials involving over 1,200 women.

SourceThomas Jefferson University·JournalActa Obstetricia Et Gynecologica Scandinavica·DateMar 15, 2017

The strangeness of slow dynamics

Researchers have discovered significant deviations in dynamic phase transitions that occur when dynamics is slow, unlike conventional thermodynamic phase transitions. These findings suggest a distinct difference between DPTs and TPTs, highlighting the importance of studying non-equilibrium dynamic phenomena.

SourceElhuyar Fundazioa·JournalPhysical Review Letters·DateMar 15, 2017

Brain-aging gene discovered

A common genetic variant, TMEM106B, accelerates normal brain aging by up to 12 years in people aged 65+, highlighting potential new targets for preventing age-associated brain disorders like Alzheimer's disease. Researchers also identified another variant associated with brain aging within the progranulin gene.

Life origination hydrate theory

The LOH-Theory suggests that amino-acids and primitive organisms arose in semi-liquid water systems saturated with functional organic substances, allowing for exothermal and thermodynamically feasible syntheses. The theory is supported by analyses of available literature and paleontological data on the origins of life on Earth.

SourceBentham Science Publishers·JournalMini-Reviews in Organic Chemistry·DateMar 15, 2017