Pinpointing the molecular mechanisms of ageing

Although each and every one of us goes through it, ageing is a poorly understood process. Researchers have used a biomarker called the epigenetic clock to identify a gene that is closely linked to ageing in humans. The study, ...

How do fruit flies grow legs? Solving a molecular mystery

What do cancer and the growing legs of a fruit fly have in common? They can both be influenced by a single molecule, a protein that tends to call the shots inside of embryos as they develop into living, breathing animals. ...

Understanding key enzyme's role in embryonic development

The catalytic activity of an enzyme called Set1A—a protein that is essential to the viability of embryonic stem cells (ESCs)—is not required for ESC self-renewal, according to a Northwestern Medicine study published in ...

Too much 'noise' can affect brain development

Using cutting-edge imaging technology, University of California, Irvine biologists have determined that uncontrolled fluctuations (known at "noise) in the concentration of the vitamin A derivative Retinoic acid (RA) can lead ...

Jigsaw a critical piece of the Notch puzzle

The Notch signaling pathway helps determine cell fate determination, differentiation and proliferative ability of numerous cells. How it accomplishes these tasks has been a puzzle, but researchers led by those at Baylor College ...

Concerns grow over children using tablet computers

Electronic tablets like the iPad are a revolutionary educational tool and are becoming part of childhood, but should be watched carefully so that overuse doesn't lead to learning or behavioral problems, experts say.

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