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-glu curonidase activity. The differences of enzyme activity were not statistica lly significant in comparison to a control group of nonjaundiced newborns. We conclude that beta-glucuronidase is not the only cause of prolonged jaun dice in neonates.