PHILADELPHIA — People with diabetes, especially those with the type 1 form of the disease, are at increased risk of broken bones. A key culprit seems to be a type of inflammation in the stem cells that are responsible for forming new bone. So a pair of University of Pennsylvania scientists tried a logical experiment in lab mice: blocking that inflammation to see if the animals’ bones would be less fragile. It worked, but something unexpected happened. The mice also developed scaly lesions on their skin. It turned out that by blocking one type of inflammation, the researchers at Penn’s School o…
