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Science News Archive November 2016 - Page 20


Page 20 of 38

Implantable catalyst against cancer

Researchers have developed a biocompatible heterogeneous copper catalyst that can assemble building blocks in a living system, enabling the creation of anti-tumor drugs. The catalyst was tested in biological systems and found to be effective in stopping cell growth and initiating programmed cell death.

SourceWiley·JournalAngewandte Chemie International Edition·DateNov 15, 2016

A possible explanation for recurring breast cancer

Researchers at Texas A&M University found that breast cancer cells may evade treatment by consuming stem cells from bone marrow, making them difficult to kill. This mechanism could explain cancer recurrence and lead to new treatments, such as delivering toxic agents directly to cancer cells using stem cells as a delivery vehicle.

SourceTexas A&M University·JournalProceedings of the National Academy of Sciences·DateNov 15, 2016

Appendicitis patients can safely leave hospital the same day of their operations

A study of 12,703 patients found that same-day discharge after laparoscopic appendectomy resulted in similar postoperative complications and lower readmission rates compared to overnight hospital stays. This approach can lead to significant cost savings, with an estimated annual healthcare savings of $921,500,000 in the US.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateNov 15, 2016

Three brain chemicals affect how we handle uncertainty

A study published in PLOS Biology investigated the role of noradrenaline, acetylcholine, and dopamine in handling uncertainty. The findings suggest that these brain chemicals enable our brains to learn changing relationships in our environment, predicting future events and executing fast responses.

SourcePLOS·JournalPLOS Biology·DateNov 15, 2016

Global declines in adolescent childbearing related to national income, education expenditures

A global study found a significant association between rising national income, education expenditures, and declining rates of adolescent childbearing. The median adolescent birth rate dropped by 40% from 1990 to 2012, with the highest rates in Sub-Saharan Africa and lowest in Europe and Central Asia.

SourceColumbia University's Mailman School of Public Health·JournalJournal of Adolescent Health·DateNov 15, 2016

The aging brain benefits from distraction

Researchers found that older adults can outperform younger counterparts on certain problem-solving tasks by broadening their attention more easily. This study challenges the common assumption that aging brains require high cognitive control and highlights the potential benefits of reduced focus.

SourceCell Press·JournalTrends in Cognitive Sciences·DateNov 15, 2016

ESCEO-IOF expert panel reviews current evidence for efficacy of calcium supplementation

The expert panel concludes that calcium and vitamin D supplements are generally appropriate for those with high risk of insufficiency and in individuals receiving osteoporosis treatment. The evidence favors use of calcium and vitamin D supplements for fracture reduction, particularly in those at greatest risk of insufficiency.

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·DateNov 15, 2016

Researchers find association between gene mutation and rare heart disease

Researchers at the University of Colorado Anschutz Medical Campus found a strong association between a genetic mutation and left ventricular noncompaction, a rare form of heart muscle disease. The study sequenced nearly 5,000 genes in 335 patients with a family history of the disease to identify common genetic variants.

SourceUniversity of Colorado Anschutz Medical Campus·JournalJournal of the American College of Cardiology·DateNov 15, 2016

Genes for speech may not be limited to humans

A recent study published in Frontiers in Behavioral Neuroscience has found that mice with a genetic mutation similar to the one affecting human speech also have difficulty producing complex vocal patterns. The study suggests that the FOXP2 gene regulates not only human speech but also mouse vocal communication.

SourceFrontiers·JournalFrontiers in Behavioral Neuroscience·DateNov 15, 2016

Autism and human evolutionary success

A recent study suggests that individuals with autism may have played an important role in their social groups due to their exceptional memory skills and heightened perception. Collaborative morality, which emerged around 100,000 years ago, allowed for the acceptance and respect of people with autistic traits.

SourceUniversity of York·JournalTime and Mind·DateNov 15, 2016

High-fat diet disrupts brain maturation

A recent study by ETH Zurich researchers found that high-fat diets during adolescence can disrupt brain maturation, leading to impaired cognitive functions in adulthood. The study used mice and found that even short-term exposure to a high-fat diet caused behavioral problems after just four weeks.

SourceETH Zurich·JournalMolecular Psychiatry·DateNov 15, 2016

Scientists 'plug in' to circuitry behind sex in male fruit flies

Researchers have identified a small neural circuit in male fruit flies that controls the complex mating ritual, with specific groups of cells controlling distinct steps. The findings suggest a mechanism for separating sex from reproductive function and provide insight into universal principles of nervous system coordination.

SourceeLife·DateNov 15, 2016

New biofuel cell with energy storage

Researchers at Ruhr-University Bochum and Malmö University created a hybrid fuel cell and capacitor using biocatalytic processes, generating and storing energy efficiently. The new biosupercapacitor combines energy production and storage, offering high capacity and low weight for potential use in implantable devices.

SourceRuhr-University Bochum·JournalAngewandte Chemie International Edition·DateNov 15, 2016