News in Brief
Previous infections with dengue virus may have protected some people in an urban slum in Brazil from getting Zika.
In a study of more than 1,400 people in the Pau da Lima area of Salvador, those with higher levels of antibodies against a particular dengue virus protein were at lower risk of contracting Zika, researchers report in the Feb. 8 Science. “The higher the antibody, the higher...
“Feed a cold, starve a fever,” or so the adage goes. But fruit fly experiments suggest that sleep may be a better remedy.
A microbe-fighting protein helps control how much and how deeply fruit flies sleep, researchers report in the Feb. 1 Science. That’s evidence that sleep speeds recovery from illness, they conclude.
“We finally have a very clear link between being sleepy and...
Chloroplasts may seem like docile farmers of light. But inside these microscopic plant and algal cell structures lurks the spirit of a warrior.
When a pathogen attacks a plant, chloroplasts stop making food from sunlight and rush to the site of infection to help fend off the invader. Now, researchers have identified the protein that mobilizes these organelles into a defensive army....
News in Brief
Losing one variety of gut bacteria may lead to type 2 diabetes as people age.
Old mice have less Akkermansia muciniphila bacteria than young mice do, researchers report November 14 in Science Translational Medicine. That loss triggers inflammation, which eventually leads cells to ignore signals from the hormone insulin. Such disregard for insulin’s message to take in glucose is known as...
Within minutes of biting into peanut-tainted food, people with a peanut allergy may find their pulse quickening, blood pressure plummeting and throat closing up. They’re experiencing a rapid and sometimes fatal allergic reaction called anaphylaxis.
New research in mice explains how even a small amount of an allergen can quickly trigger such a strong, full-body reaction. The culprit is a...
Trent Jackson’s life changed abruptly in early 2015. The computer engineer thought he had the flu. His then-wife, Donna Sylvia, thought differently. His skin was turning a dark golden yellow, almost brown, “like he was getting some kind of weird tan,” she says. On Wednesday, January 28, Sylvia and Jackson’s brother Todd finally persuaded Jackson to see a doctor.
Sylvia’s suspicions were...