Related Experiment Video
Updated: Aug 10, 2026

Isolation of Neonatal Extrahepatic Cholangiocytes
Published on: June 5, 2014
Neonatal thyrotoxicosis and conjugated hyperbilirubinemia
R S Beroukhim1, T D Moon, E I Felner
1Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana 70112-2699, USA.
Insights
Neonatal thyrotoxicosis from maternal Graves
Area of Science:
- Neonatology
- Endocrinology
- Pediatric Gastroenterology
Background:
- Graves' disease in pregnant individuals can cause neonatal thyrotoxicosis.
- Maternal thyroid-stimulating immunoglobulins cross the placenta, affecting fetal thyroid function.
Observation:
- A neonate presented with typical hyperthyroid symptoms.
- The infant also developed conjugated hyperbilirubinemia.
Findings:
- This case highlights conjugated hyperbilirubinemia as a potential, previously unreported complication of neonatal thyrotoxicosis.
- The infant's condition resolved with appropriate treatment.
Implications:
- Clinicians should consider conjugated hyperbilirubinemia in neonates with thyrotoxicosis.
- Further research is needed to understand the mechanism and prevalence of this association.
Abstract:
We report a case of neonatal thyrotoxicosis secondary to maternal Graves' disease. In addition to presenting with symptoms of hyperthyroidism, the infant developed conjugated hyperbilirubinemia, a finding not previously reported in children with this condition.
Related Concept Videos
Transcytosis of IgG
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
Phase II Reactions: Miscellaneous Conjugation Reactions
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Hyperthyroidism I: Introduction
Hyperthyroidism II: Pathophysiology
Jaundice

