IAN R. HOLZMAN, ANTHONY F. PHILIPPS, AND FREDERICK C. BATTAGLIA’27’ Division of Perinatal Medicine, Departments of Pediatrics, and Obstetrics and Gynecology, University of Colorado Medical Center, Denver, Colorado, USA Summary Fifteen human placentas were obtained at term. Placental fragments were incubated in a bicarbonate-buffered Earle’s solution. Additions of glutamate (1 mM) or glutamine (1 […]