A clinical trial argues against the hypothesis that the diabetes drug metformin could help exercising seniors gain more muscle mass. The double-blind trial found that older adults who took metformin while performing rigorous resistance exercise training had smaller gains in muscle mass than the placebo group.
Read moreHuman population density and land use is causing changes in animal genetic diversity, according to new research. The research show that environmental changes caused by humans are leading to changes in genetic variation in thousands of species of birds, fish, insects, and mammals. The evidence for human impacts was most clear for insects and fish species.
Read moreMen with breast cancer are more likely to die than their female counterparts, across all stages of disease, with the disparity persisting even when clinical characteristics, such as cancer types, treatment and access to care are considered, according to a new study.
Read moreScientists have discovered a new lineage of specialized brain cells, called Hoxb8-lineage microglia, and established a link between the lineage and OCD and anxiety in mice. Their experiments proved that Hoxb8-lineage microglia prevent mice from displaying OCD behaviors. Additionally, they found that female sex hormones caused more severe OCD behaviors and induced added anxiety in the mice.
Read moreResearchers have invented a novel class of Digital-to-Analog (DAC) and Analog-to-Digital Converters (ADC) that can be entirely designed with a fully-automated digital design methodology.
Read moreAI reveals domain-geometry-driven differences in ferroelectric switching, important for next-generation computing; approach could be applied to electron microscopy, agriculture, astronomy and other systems mapped through hyperspectral imaging
Read moreAging can be delayed through lifestyle changes (physical exercise, restricting calorie intake, etc.). Researchers have elucidated the properties of a molecule in the blood – GDF11 – whose mechanisms were previously unknown. In a mouse model, they showed that this molecule could mimic the benefits of certain calorie restrictions – dietary regimens that have proven their efficacy in reducing cardiovascular disease, preventing cancer and increasing neurogenesis in the brain.
Read moreNew research introduces a revolutionary treatment for these infections. The group is utilizing electrochemical therapy (ECT) to enhance the ability of antibiotics to eradicate the microbes.
Read moreMany of the most dramatic events in the solar system — the spectacle of the Northern Lights, the explosiveness of solar flares, and the destructive impact of geomagnetic storms that can disrupt communication and electrical grids on Earth — are driven in part by a common phenomenon: fast magnetic reconnection. In this process the magnetic field lines in plasma — the gas-like state of matter consisting of free electrons and atomic nuclei, or ions — tear, come back together and release large amounts of energy.
Read moreHuman-made toxic chemicals that linger indefinitely in the environment disrupt the performance of critical helper cells in the mouse brain, leading to impaired function over long-term exposures.
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