News & HighlightsNews
New findings suggest severe tornado outbreaks are increasingly common
One tornado alone can cause intense destruction, but the largest impact on both death rates and economic losses stems from “outbreaks,” in which six or more tornadoes occur within a limited time. New research from Joel Cohen, Abby Rockefeller Mauzé Professor and head of the Laboratory of Pop...
New research clarifies how stem cells get activated to produce new hair—and what happens when their regenerative powers wear out
Adult stem cells provide the body with a reservoir from which damaged or used up tissues can be replenished. In organs like the intestines and skin, which need constant rejuvenating, these stem cells are dividing frequently. But in other body structures, including the hair follicles, they are hel...
Metabolism protein found to also regulate feeding behavior in the brain
The molecular intricacies of hunger and satiety, pivotal for understanding metabolic disorders and the problem of obesity, are not yet fully understood by scientists. However, new research from The Rockefeller University reveals an important new component of the system responsible for regulating ...
Scientists question a popular theory about how the nervous system trims its branches
As tiny embryos in the womb, we start out with a lot more neuronal material than we actually need. During development, the body drastically prunes back the excess—cutting the branches from nerve cell bodies, known as axons, as well as entire neurons. Scientists have long assumed that the decisi...
Scientists learn how young brains form lifelong memories by studying worms’ food choices
Members of neuroscientist Cori Bargmann’s lab spend quite a bit of their time watching worms move around. These tiny creatures, Caenorhabditis elegans, feed on soil bacteria, and their very lives depend on their ability to distinguish toxic microbes from nutritious ones. In a recent study, Bargma...
A newly discovered form of immunity helps explain how bacteria fight off viruses
When seeking to protect themselves from viruses, some bacteria use a seemingly risky strategy: They wait until the invading virus has already begun to replicate. Research at The Rockefeller University shows how the microbes use two newly identified enzymes to fight off an infection even after del...
Study reveals how herpes virus tricks the immune system
With over half the U.S. population infected, most people are familiar with the pesky cold sore outbreaks caused by the herpes virus. The virus outsmarts the immune system by interfering with the process that normally allows immune cells to recognize and destroy foreign invaders. How exactly the h...
The neurons in our gut help the immune system keep inflammation in check
The immune system exercises constant vigilance to protect the body from external threats—including what we eat and drink. A careful balancing act plays out as digested food travels through the intestine­. Immune cells must remain alert to protect against harmful pathogens like Salmonella, but the...
New findings challenge popular explanation for why a social insect becomes a worker or queen
The exquisite social hierarchy of insect colonies has long fascinated scientists. Take two eggs—both contain identical genetic material, but while one becomes a sterile worker, the other may develop into a queen that can reproduce. Workers perform brood care and other crucial tasks that keep the ...
Study identifies signals that make early stem cells
Stem cells work throughout our lives as a sort of handyman, repairing damaged tissues and renewing some normal ones, like the skin we shed. Scientists have come to understand much about how stem cells function when we are adults, but less is known about where these stem cells come from to begin w...
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