Beta-glucuronidase and hyperbilirubinemia in breast-Fed babies.

In the present study we analyzed breast milk samples from mothers of breast-fed, healthy, term babies with unexplained prolonged jaundice for beta-glucuronidase activity. The differences of enzyme activity were not statistically significant in comparison to a control group of nonjaundiced newborns. We conclude that beta-glucuronidase is not the only cause of prolonged jaundice in neonates.