Growth Hormone Response to Insulin–Induced Hypoglycemia in Newborn Infants

In the article by J. R. Humbert and R. W. Gotlin,1 the authors state that previous reports in which hypoglycemia was induced artificially with insulin demonstrated a variable growth hormone response. They then refer to the paper by Cornblath, et al.2 as reporting a failure to obtain a rise in growth hormone levels. This is incorrect as we found that insulin-induced hypoglycemia actually resulted in a very marked rise in growth hormone levels in both the full-term and premature infants tested.