Systemic regulation of bilirubin homeostasis: Potential benefits of hyperbilirubinemia
Ryoichi Fujiwara, Mathias Haag, Elke Schaeffeler, Anne T. Nies, Ulrich M. Zanger, Matthias Schwab – 23 October 2017 – Neurotoxic bilirubin is the end product of heme catabolism in mammals. Bilirubin is solely conjugated by uridine diphospho‐glucuronosyltransferase 1A1, which is a membrane‐bound enzyme that catalyzes the transfer of glucuronic acid. Due to low function of hepatic and intestinal uridine diphospho‐glucuronosyltransferase 1A1 during the neonatal period, human neonates develop mild to severe physiological hyperbilirubinemia.