Mutation Spectrum and Biochemical Features in Infants with Neonatal Dubin-Johnson Syndrome

Overview

Journal BMC Pediatr

Publisher Biomed Central

Specialty Pediatrics

Date 2020 Aug 8

PMID 32758197

Citations 10

Authors

Kwang Yeon Kim

Tae Hyeong Kim

Moon-Woo Seong

Sung Sup Park

Jin Soo Moon

Jae Sung Ko

Affiliations

Soon will be listed here.

Abstract

Background: Dubin-Johnson syndrome (DJS) is an autosomal recessive disorder presenting as isolated direct hyperbilirubinemia.DJS is rarely diagnosed in the neonatal period. The purpose of this study was to clarify the clinical features of neonatal DJS and to analyze the genetic mutation of adenosine triphosphate-binding cassette subfamily C member 2 (ABCC2).

Methods: From 2013 to 2018, 135 infants with neonatal cholestasis at Seoul National University Hospital were enrolled. Genetic analysis was performed by neonatal cholestasis gene panel. To clarify the characteristics of neonatal DJS, the clinical and laboratory results of 6 DJS infants and 129 infants with neonatal cholestasis from other causes were compared.

Results: A total of 8 different ABCC2 variants were identified among the 12 alleles of DJS. The most common variant was p.Arg768Trp (33.4%), followed by p.Arg100Ter (16.8%). Three novel variants were identified (p.Gly693Glu, p.Thr394Arg, and p.Asn718Ser). Aspartate transaminase (AST) and alanine transaminase (ALT) levels were significantly lower in infants with DJS than in infants with neonatal cholestasis from other causes. Direct bilirubin and total bilirubin were significantly higher in the infants with DJS.

Conclusions: We found three novel variants in 6 Korean infants with DJS. When AST and ALT levels are normal in infants with neonatal cholestasis, genetic analysis of ABCC2 permits an accurate diagnosis.

Citing Articles

ABCC2 p.R393W variant contributes to Dubin-Johnson syndrome by targeting MRP2 to proteasome degradation.

Sun R, Chen Y, Zhu M, Sun J, Wang H, Wu C eGastroenterology. 2025; 2(1):e100039.

PMID: 39944748 PMC: 11770467. DOI: 10.1136/egastro-2023-100039.

Patterns and unique features of infantile cholestasis among Arabs.

Al-Hussaini A, Alrashidi S, Hafez D, Alkhalifah Y, Otayn B, Alrasheed M Front Pediatr. 2024; 12:1423657.

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Clinical characteristics and follow-up of a newborn with Dubin-Johnson Syndrome: A clinical case report.

Zhang Y, Zuo W, Gao W Medicine (Baltimore). 2024; 103(4):e36991.

PMID: 38277553 PMC: 10817024. DOI: 10.1097/MD.0000000000036991.

LRH-1 agonist DLPC through STAT6 promotes macrophage polarization and prevents parenteral nutrition-associated cholestasis in mice.

Ghosh S, Devereaux M, Liu C, Sokol R Hepatology. 2023; 79(5):986-1004.

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Urinary coproporphyrins as a diagnostic biomarker of Dubin-Johnson syndrome in neonates: A diagnostic pathway is proposed.

Al-Hussaini A, Asery A, Alharbi O Saudi J Gastroenterol. 2023; 29(3):183-190.

PMID: 37313948 PMC: 10358799. DOI: 10.4103/sjg.sjg_480_22.

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