RNA does more than previously thought: it also operates on the outside of cells. Research by biochemist Jack Li shows that this may be important for how the immune system responds to disease.

Unlike our organs, cell organelles such as mitochondria are not fixed in place, but when, where, how, and why organelles move ...

Imagine if our bodies could grow new organs throughout our entire lives. Plants do this constantly, thanks to tiny, powerful ...

A new study has identified key gene regulators that enable some deafened animals -- including fish and lizards -- to naturally regenerate their hearing. The findings could guide future efforts to ...

BOULDER, Colo. — That zero-calorie sweetener making your morning coffee taste just right might be quietly interfering with the tiny blood vessels in your brain — at least in a petri dish. A new ...