​Scientists engineer worms to live the equivalent of 500 human years

In an experiment that even caught the researchers by surprise, nematode worms had their lifespans increased by — get this — five times. By tweaking two longevity-related genes, the researchers created an unexpected feedback effect that radically amplified lifespan. The technique could eventually be used to treat… » 12/16/13 2:20pm 12/16/13 2:20pm

Breakthrough technique for cutting and pasting genes into DNA works…

Last year, geneticists developed a new techniquethat allows them directly insert genes into bacterial DNA — or remove them. It was a powerful discovery, one that finally offered researchers a cheap and easy way to remove precise sections of a bacterial genome. And now, MIT researchers led by George Church have proven… » 1/15/13 4:00pm 1/15/13 4:00pm

Scientists build a biological pacemaker by injecting a modified virus…

Our heartbeats are triggered by a steady stream of electrical signals, which cause our heart muscles to contract with a regular rhythm. For some people, however, the ‘pacemaker cells' responsible for generating these pulses can fail, resulting in an erratic heartbeat. Normally, this problem is addressed by surgery… » 12/17/12 8:00am 12/17/12 8:00am