Oct 21, 2014

Cell transplant allows paralyzed man to walk again

A Bulgarian man who was paralyzed from the chest down in a knife attack can now walk with the aid of a frame after receiving pioneering transplant treatment using cells from his nose. The technique, described as a breakthrough by a study in the ...

For huge ancient kangaroos, hopping was dicey

Oct 16, 2014

For huge ancient kangaroos, hopping was dicey

Kangaroos hop, right? Well, not all of them. Scientists said that a biomechanical and statistical analysis of fossil bones of a group of huge extinct kangaroos shows that the largest of the bunch likely could not hop as their modern-day relatives do. The study, ...

Oct 15, 2014

Embryonic stem cells clear key hurdle in eye trial

Embryonic stem cells transplanted into 18 patients with deteriorating eyesight restored some vision in more than half of the volunteers, researchers in the longest study into the fledgling technology reported Tuesday. Stem cells derived from embryos “could provide a potentially safe new source of ...

Oct 9, 2014

Highways fragment Southern California mountain lion gene pool

Mountain lions in Southern California are under growing pressure from a shrinking gene pool, fragmented by highways and urban sprawl that has left the cats’ territories increasingly isolated from each other, a study published on Wednesday showed. Analysis of DNA from about 350 mountain ...

Oct 2, 2014

Scientists find potential way to treat cold-triggered asthma

British scientists have identified a sequence of biological events that could trigger life-threatening asthma attacks in people suffering from colds — a finding that holds the potential for developing more effective medicines. In a study published in the journal Science Translational Medicine, the researchers ...