La Jolla, CA, USA. New amphibian studies have provided insights on the potential for regenerating human limbs or organs, including the role of crucial genetic information.

Researchers at the Salk Institute for Biological Studies discovered that it isn't enough to activate genes that kickstart the regenerative process. In fact, one of the first steps is to halt the activity of transposons, the so-called jumping genes.

Little Rock, AR, USA. States have tried a variety of schemes to control Medicaid costs. Arkansas may have the boldest plan of all.

Arkansas ranks near the bottom among states in health and income. But it’s much closer to the top when it comes to rising health care costs — they’ve doubled in just the past decade. Reduced benefits and lower provider fees have not halted the escalation.