Hyperbilirubinemia in healthy neonates with glucose-6-phosphate dehydrogenase deficiency

Yi-Hao Weng1, Yi-Hung Chou, Rey-In Lien

  • 1Department of Pediatrics, Division of Neonatology, Chang Gung Children's Hospital, 5 Fu-Shin Street, Kueishan, Taoyuan, Taiwan.

Insights

Glucose-6-phosphate dehydrogenase (G6PD) deficiency increases the risk of neonatal hyperbilirubinemia in newborns. Lower G6PD enzyme activity in males with hyperbilirubinemia suggests a significant association.

Area of Science:

  • Neonatology
  • Medical Genetics
  • Biochemistry

Background:

  • Neonatal hyperbilirubinemia is a common condition.
  • Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an inherited enzyme disorder.
  • The association between G6PD deficiency and neonatal hyperbilirubinemia requires further investigation.

Purpose of the Study:

  • To assess the association between G6PD deficiency and neonatal hyperbilirubinemia.
  • To compare the incidence of hyperbilirubinemia in G6PD-deficient versus G6PD-normal newborns.
  • To investigate the relationship between G6PD enzyme activity and hyperbilirubinemia in G6PD-deficient neonates.

Main Methods:

  • A cohort study was conducted involving 42,110 inborn infants.
  • G6PD deficiency was diagnosed using a quantitative enzyme assay.
  • Neonatal hyperbilirubinemia was defined as serum total bilirubin >/= 15 mg/dl.

Main Results:

  • G6PD deficiency was identified in 3.54% of males and 1.57% of females.
  • Hyperbilirubinemia incidence was significantly higher in G6PD-deficient males (11.36%) and females (7.06%) compared to G6PD-normal infants.
  • Lower G6PD enzyme activity was significantly associated with hyperbilirubinemia in G6PD-deficient males, but not females.

Conclusions:

  • G6PD-deficient neonates face an elevated risk of hyperbilirubinemia, even without hemolytic agents.
  • Lower G6PD enzyme activity is linked to neonatal hyperbilirubinemia in G6PD-deficient males.
  • G6PD deficiency is a significant risk factor for neonatal hyperbilirubinemia.

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