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Science News Archive December 2017 - Page 9


Page 9 of 33

Mild obsessive-compulsive symptoms in healthy children are linked with cerebral changes

A new study by IDIBELL and ISGlobal found that mild obsessive-compulsive symptoms in healthy children are associated with specific cerebral anatomical changes. The study suggests that these symptoms may be an early manifestation of a more severe mental disorder, highlighting the importance of prevention strategies.

SourceIDIBELL-Bellvitge Biomedical Research Institute·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateDec 19, 2017

A non-invasive method to detect Alzheimer's disease

Researchers have linked changes in brain anatomy to early biomarkers of Alzheimer's disease, suggesting a non-invasive test may detect AD before symptoms appear. The study found that specific regions of the hippocampal circuit shrink in individuals with high levels of tau and amyloid-Beta proteins.

SourceMcGill University·JournalHuman Brain Mapping·DateDec 19, 2017

Brain lesions and criminal behavior linked to moral decision-making network

Research finds brain lesions associated with increased risk of criminal behavior, specifically impacting the moral decision-making network. The study analyzed MRI and CT scans of individuals with brain lesions, revealing a strong correlation between lesions in the same brain network as those with criminal behavior.

SourceVanderbilt University Medical Center·JournalProceedings of the National Academy of Sciences·DateDec 18, 2017

Study sheds light on rarity of disease-causing IGF mutations

Researchers have identified a low incidence of disease-causing IGF mutations and common polymorphisms in the IGF protein family. Dr. Rotwein's analysis suggests that most medical problems associated with IGF mutations are not caused by rare genetic mutations, but rather by prevalent genetic variations within the human population.

SourceTexas Tech University Health Sciences Center El Paso·JournalJournal of Biological Chemistry·DateDec 18, 2017

Black hole pair born inside a dying star?

Researchers at Kyoto University have proposed a new theory on the formation of binary black holes within collapsing stars. Their study suggests that these black holes could form through dynamical fragmentation of the star's inner core, leading to two fragments becoming black holes and orbiting each other.

SourceKyoto University·JournalPhysical Review Letters·DateDec 18, 2017

Mutational signatures may ID pts with Br Ca most likely to benefit from platinum-based chemo

Researchers identified mutational signatures characteristic of homologous recombination deficiency (HRD) as associated with improved clinical outcomes to platinum-based chemotherapy. High HRDetect scores were significantly linked to radiographic tumor shrinkage and longer overall survival in patients treated with the medication.

SourceAmerican Association for Cancer Research·JournalClinical Cancer Research·DateDec 18, 2017

New 'checkpoint' model that could identify potential drugs to treat genetic disorders

A new 'checkpoint' model can identify potential drugs to treat genetic disorders by allowing compounds to bypass premature stop instructions once, reducing the risk of harmful protein generation. The model has been used to screen hundreds of genes and existing FDA-approved drugs, identifying two promising targets for drug development.

SourceUniversity of Bradford·JournalHuman Molecular Genetics·DateDec 18, 2017

Particle size matters for porous building blocks

Rice University scientists found that porous particles of calcium and silicate show potential as building blocks for various applications. When assembled into micron-sized sheets and pellets, the arrays held up better under pressure, with bigger individual nanoparticles being 120% tougher than smaller ones.

SourceRice University·JournalACS Applied Materials & Interfaces·DateDec 18, 2017

In the footsteps of Jacques Cousteau

A team of researchers led by Eberhard Gischler analyzed the Blue Hole stalactite recovered in 1970, revealing concentric layers that detail climate conditions since the last ice age. The study provides new insights into paleo-environmental conditions and storm patterns.

SourceGoethe University Frankfurt·JournalJournal of Sedimentary Research·DateDec 18, 2017

Men gave more talks than women at top 50 universities in US

A new study found that male professors gave over twice as many talks as female professors at top 50 US universities during the 2013-2014 academic year. Despite equal levels of perceived importance and acceptance rates for speaking invitations, male speakers dominated departmental talks.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateDec 18, 2017

Tiny bilirubin-filled capsules could improve survival of transplanted pancreatic cells

Researchers have developed tiny bilirubin-filled capsules that can improve the survival rates of transplanted pancreatic islet cells. This breakthrough has implications for treating Type 1 diabetes in both canine and human patients, with a potential treatment program for dogs that could lead to improved treatments for humans.

SourceNorth Carolina State University·JournalCell Transplantation·DateDec 18, 2017

College completion and health among disadvantaged minorities

Researchers found that college graduates from minority groups exhibited lower rates of depression than non-graduates, despite experiencing socioeconomic disadvantages in childhood. However, black and Hispanic college graduates showed higher rates of metabolic syndrome compared to their noncollege counterparts.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateDec 18, 2017

Direct amygdala stimulation can enhance human memory

Researchers found that direct electrical stimulation of the human amygdala can enhance next-day recognition of images, with a significant boost in memory performance. The study used low-level current and showed an improvement in memory recall for patients with epilepsy and average memory performance.

SourceEmory Health Sciences·JournalProceedings of the National Academy of Sciences·DateDec 18, 2017

What factors affect quality of life in older patients with cancer?

A new study found that factors such as persistent symptoms, comorbidities, leisure-time physical activity, and financial challenges affect health-related quality of life in older adults with cancer. The research highlights the importance of comprehensive care that addresses these factors to improve outcomes for this vulnerable population.

SourceWiley·JournalCancer·DateDec 18, 2017

Nanoscale super-resonator extends light lifetime

Researchers create a subwavelength dielectric resonator that can trap light for an extended period due to destructive interference, allowing for more efficient optical devices. The structure is capable of suppressing energy leakage and keeping light for ten times longer than conventional resonators.

SourceITMO University·JournalPhysical Review Letters·DateDec 18, 2017