Updated: 1 hour 29 min ago
Scientists may have uncovered a molecular mechanism that sets into motion dangerous infection in the feet and hands often occurring with uncontrolled diabetes. It appears that high blood sugar unleashes destructive molecules that interfere with the body's natural infection-control defenses.
Men who were physically and sexually abusive to women were more likely than non-abusive men to engage in behaviors that exposed them and their partners to sexually transmitted infections.
Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies continue making stars long after their peak years of star birth. Hubble Space Telescope's exquisite high resolution and ultraviolet-light sensitivity allowed the astronomers to see brilliant knots of hot, blue stars forming along the jets of active black holes found in the centers of giant elliptical galaxies.
Companies engaging with customers on Twitter beware: responding to complaints on social media has the side effect of triggering new complaints, new research has found.
Astronomers have produced the best constraint ever of the gravitational constant measured outside of our Solar System.
An international team of scientists has pieced together the first complete account of what physically happened during the Gorkha earthquake -- a picture that explains how the large temblor wound up leaving the majority of low-story buildings in Kathmandu unscathed while devastating some treasured taller structures.
Darwinian selection can be used to evolve robot controllers able to efficiently self-organize their tasks. Taking inspiration from the way in which ants organize their work and divide up tasks, researchers evolved complex robot behaviors using artificial evolution and detailed robotics simulations.
Rabbits have long been considered immune to prion disease, but recently scientists have shown that they can -- under certain circumstances -- get transmissible spongiform encephalopathy (or TSE, the scientific term for the fatal brain disease caused by prions). Two studies address what makes rabbits hard to infect with prions and how their resistance can be overcome.
While recently published parenting books have preached the effectiveness of positive parenting and 'no drama' discipline, psychologists are now saying, "don't put timeout in timeout yet."
Results of a phase one trial show that an investigational topical drug, resiquimod gel, causes regression of both treated and untreated tumor lesions and may completely remove cancerous cells from both sites in patients with early stage cutaneous T cell lymphoma (CTCL) – a rare type of non-Hodgkin lymphoma that affects the skin. Currently, there is no cure for CTCL aside from a bone marrow transplant. However, the new study shows that the topical gel can eliminate malignant T cells, leading to diminished lesions.
Easily manufactured, low cost, lightweight, flexible dielectric polymers that can operate at high temperatures may be the solution to energy storage and power conversion in electric vehicles and other high temperature applications, according to a team of engineers.
Published research and common knowledge suggest that embarrassment is something we experience only when we are around other people. But a new research study has found that people often are embarrassed when buying sensitive health care products privately and online -- products such as home test kits and medications for incontinence and sexual dysfunction.
Researchers have developed a new model to study motor neuron degeneration and have used this to identify three genes involved in the neurodegeneration process. These findings could have relevance for understanding the progression of amyotrophic lateral sclerosis (ALS) and other forms of motor neuron disease. ALS is the most common form of adult-onset motor neuron disease.
Understanding how and why we evolved such large brains is one of the most puzzling issues in the study of human evolution. A new study argues that carbohydrate consumption, particularly in the form of starch, was critical for the accelerated expansion of the human brain over the last million years. Eating meat may have kick-started the evolution of bigger brains, but cooked starchy foods together with more salivary amylase genes made us smarter still.
To be able to function, cell mitochondria import 'fuel' using a carrier, the mitochondrial pyruvate carrier (MPC). In order to determine whether the MPC is still functional in malignant cells, scientists have just developed a biosensor to measure its live activity.
A critical immune organ called the thymus shrinks rapidly with age, putting older individuals at greater risk for life-threatening infections. A new study reveals that thymus atrophy may stem from a decline in its ability to protect against DNA damage from free radicals. The damage accelerates metabolic dysfunction in the organ, progressively reducing its production of pathogen-fighting T cells.
Two labs in China have independently succeeded in transforming skin cells into neurons using only a cocktail of chemicals, with one group using human cells from healthy individuals and Alzheimer's patients, and the other group using cells from mice. The two studies reinforce the idea that a purely chemical approach is a promising way to scale up cell reprogramming research.
It's no surprise that some frogs secrete poison from glands in their skin. But researchers have discovered the first two species of frog, both living in Brazil, that are actually venomous. Not only do the frogs produce potent toxins, but they also have a mechanism to deliver those harmful secretions into another animal using bony spines on their heads.
Men’s and women’s ideas of the perfect mate differ significantly due to evolutionary pressures, according to a cross-cultural study on multiple mate preferences. According to the study, men favor mates who are younger and physically attractive. Women seek older mates with good financial prospects, higher status and ambition.
Insecticides that are sprayed in orchards and fields across North America may be more toxic to spiders than scientists previously believed. The researchers focused on the way that exposure to insecticide affected the behavior of individual spiders, including things like their ability to leap on prey and their interest in exploring new territory, both of which are crucial to their survival and to their role in keeping down pests.