Surfactant is a successful therapeutic based on supplementing preterm infants with a substance that would normally have been up-regulated in late gestation. Although prematurity is associated with oxidative stress, no effective antioxidant therapy has yet been identified.
Department of Obstetrics and Gynaecology, University of Cambridge, and Neonatal Intensive Care Unit, Addenbrooke's Hospital, Box 223, Cambridge CB2 0SW, United Kingdom.