... and Physiology, and Children s Research Center, University of Arizona Health Sciences Center, Tucson, Ariz., USA Key Words. Prostaglandin Milk Gastric fluid Human infant Abstract. Prostaglandins are present in breast milk and may protect and maintain intes­ tinal epithelial cell integrity in developing...

... reaction to calf anti-chymosin serum in five samples taken from a further 17 infants. These results indicate that some human infants secrete chymosin. The reaction in the immunodiffusion assay indicated a much lower enzyme activity than that implied from electrophoretic separations. It is suggested...