In the spring of 2005, families affected by progeria welcomed the news from two studies that uncovered new information about this rare, devastating condition that causes premature aging in children.

In 1996, Leslie Gordon, a biologist and a pediatrics resident at a hospital in Rhode Island, gave birth to a son, Sam. For a few months, Sam seemed healthy. But Gordon and her husband, a pediatric ...

Progress in the quest to help progeria patients suggests that gene editing techniques may help treat other ultrarare conditions. By Gina Kolata A cure for an ultrarare disease, progeria, could be on ...