Results of Stem-Cell Study on Insulin Questioned Harvard scientists discover problems using stem cells to treat diseases such as diabetes. Two years ago, scientists said they successfully nudged stem cells into producing insulin. Now, the newest research suggests those cells weren't really making insulin. NPR's Joe Palca reports.

Results of Stem-Cell Study on Insulin Questioned

Results of Stem-Cell Study on Insulin Questioned

  • Download
  • <iframe src="https://www.npr.org/player/embed/925014/925015" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Harvard scientists discover problems using stem cells to treat diseases such as diabetes. Two years ago, scientists said they successfully nudged stem cells into producing insulin. Now, the newest research suggests those cells weren't really making insulin. NPR's Joe Palca reports.