Fruit fly intestine may hold secret to the fountain of youth

One of the few reliable ways to extend an organism's lifespan, be it a fruit fly or a mouse, is to restrict calorie intake. Now, a new study in fruit flies is helping to explain why such minimal diets are linked to longevity ...

New insights into early human embryo development

Researchers at Karolinska Institutet and the Ludwig Cancer Research in Stockholm, Sweden have conducted a detailed molecular analysis of the embryo's first week of development. Their results show that there are considerable ...

A first look at the earliest decisions that shape a human embryo

The factors that shape the destiny of a cell, like that of a fully formed person, remain something of a mystery. Why, for example, does one stem cell in a human embryo become a neuron rather than a muscle cell? And why does ...

Pressure in the womb may influence facial development

Physical cues in the womb, and not just genetics, influence the normal development of neural crest cells, the embryonic stem cells that form facial features, finds a new study led by UCL researchers.

Research sheds light on M.O. of unusual RNA molecules

(Phys.org) —The genes that code for proteins—more than 20,000 in total—make up only about 1 percent of the complete human genome. That entire thing—not just the genes, but also genetic junk and all the rest—is coiled ...

Some states push back against stem cell research

(AP) -- A showdown is shaping up in some of the nation's most conservative states over embryonic stem cell research, as opponents draw language and tactics from the battle over abortion to counter President Barack Obama's ...

page 13 from 40