Howard Hughes Medical Institute

A single DNA tweak leads to blond hair

A single-letter change in the genetic code is enough to generate blond hair in humans, in dramatic contrast to our dark-haired ancestors. A new analysis by Howard Hughes Medical Institute (HHMI) scientists ...

Jun 01, 2014
popularity 4.3 / 5 (10) | comments 9

Finding a new way to manage infections

(Medical Xpress)—Waging an immunological war against a pathogen is not the body's only way to survive an infection. Sometimes tolerance, or learning to live with an invader, can be just as important. In tolerance the body ...

Apr 29, 2013
popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Enigmatic neurons help flies get oriented

As a tiny fruit fly navigates through its environment, it relies on visual landmarks to orient itself. Now, researchers at the Howard Hughes Medical Institute's Janelia Farm Research Campus have identified ...

Oct 10, 2013
popularity 5 / 5 (1) | comments 0 | with audio podcast

Positive feedback in the developing brain

(Medical Xpress) -- When an animal is born, its early experiences help map out the still-forming connections in its brain. As neurons in sensory areas of the brain fire in response to sights, smells, and sounds, ...

May 16, 2012
popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Brain bank yields new clues to brain development

(Medical Xpress) -- The creation of brain cells doesn’t end at birth, but it has been hard to pin down how long the brain continues to create new, specialized cells. Now a study led by Howard Hughes Medical Institute ...

Sep 29, 2011
popularity 4 / 5 (2) | comments 1 | with audio podcast