Transplanted Brain Cells Can Outlast The Body's Biological Clock

The problem with cells is that they have an expiry date. They can only replicate so many times before they hit a biologically predetermined limit and sputter out. But a recent study by neuroscientist Lorenzo Magrassi from the University of Pavia in Italy shows that mammalian neurons are not subject to this kind of… » 2/26/13 8:00am 2/26/13 8:00am