Rockefeller University

Aging cells unravel their DNA

Senescent cells, which are metabolically active but no longer capable of dividing, contribute to aging, and senescence is a key mechanism for preventing the spread of cancer cells. A study in The Journal of ...

Dec 16, 2013
5 / 5 (1) 0

Sperm may play leading role in spreading HIV

Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...

Oct 26, 2009
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Scientists identify nature's insect repellents

In the battle between insect predators and their prey, chemical signals called kairomones serve as an early-warning system. Pervasively emitted by the predators, the compounds are detected by their prey, and can even trigger ...

Jul 16, 2010
4.6 / 5 (8) 1 | with audio podcast

Scientists identify stomach’s timekeepers of hunger

(PhysOrg.com) -- New York collaborators at Columbia and Rockefeller Universities have identified cells in the stomach that time the release of a hormone that makes animals anticipate food and eat even when they are not hungry. ...

Aug 14, 2009
4.7 / 5 (6) 0