Clinical feature and molecular diagnostic analysis of the first non-caucasian child with infantile liver failure syndrome type 1 / 中国当代儿科杂志
Zhongguo dangdai erke zazhi
; Zhongguo dangdai erke zazhi;(12): 913-920, 2017.
Article
de Zh
| WPRIM
| ID: wpr-297185
Bibliothèque responsable:
WPRO
ABSTRACT
Infantile liver failure syndrome type 1 (ILFS1) is a Mendelian disease due to biallelic mutations in the cytoplasmic leucyl-tRNA synthetase gene (LARS). This study aimed to report the clinical and molecular features of the first non-caucasian ILFS1 patient, providing reliable evidences for the definite diagnosis of ILFS1. The 2 years and 9 months old male patient was referred to the hospital with hepatosplenomegaly over 1 year. At age 17 months, he was found to have hepatosplenomegaly and anemia. Since then, he had been managed in different hospitals. The laboratory tests showed liver dysfunction, hypoproteinemia, coagulopathy and anemia, along with histologically-confirmed cirrhosis and fatty liver; however, the etiology remained undetermined. The subsequent SLC25A13 mutation analysis by means of prevalent mutation screening and Sanger sequencing only revealed a paternally-inherited mutation c.1658G>A, and no aberrant SLC25A13 transcripts could be detected from the maternal allele on cDNA cloning analysis, ruling out the possibility of citrin deficiency. Further target exome high-throughout sequencing of genes relevant to genetic liver diseases detected a paternal c.2133_2135del (p.L712del) and a maternal c.1183G>A (p.D395N) mutation in LARS gene. This finding was then confirmed by Sanger sequencing, and ILFS1 was thus definitely diagnosed. The child has been followed up till age 4 years, and his condition became stabilized.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Défaillance hépatique
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Protéines de transport de la membrane mitochondriale
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Diagnostic
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Séquençage nucléotidique à haut débit
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Génétique
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Leucine-tRNA ligase
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Mutation
Type d'étude:
Diagnostic_studies
Limites du sujet:
Child, preschool
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Humans
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Male
langue:
Zh
Texte intégral:
Zhongguo dangdai erke zazhi
Année:
2017
Type:
Article