The University Record, November 5, 1997

For the Record

The Oct. 29 article "U-M scientists use insulin-like growth factor to grow new membranes around neurons" contained an inaccurate quote that gave the mistaken impression that this was the first research finding that IGF-I can promote growth of new myelin sheaths around neurons. The sentence (second paragaph) should have read: "This is the first evidence to indicate that IGF-I can promote growth of new peripheral nervous system myelin sheaths," according to Eva L. Feldman.

Many laboratories have been studying the effects of IGF-I in stimulating myelin since 1983, when F. Arthur McMorris and colleagues at the Wistar Institute in Philadelphia reported that IGF-I stimulates the development of myelin-forming cells of the central nervous system.