Abstract:
BACKGROUND:Recently, biallelic mutations in the Neuroblastoma Amplified Sequence NBAS gene have been identified in ten patients that present recurrent acute liver failure (RALF) in early infancy. In addition to severe liver dysfunction, some of these individuals also suffered from other comorbidities including cardiomyopathy, neurologic phenotypes and gastrointestinal immune defects. Here we report on a consanguineous Lebanese family with three siblings affected by RALF. Of note, neonatal spontaneous fractures, developmental delay, prominent eyes, generalized hirsutism, gum hypertrophy, and hepato-splenomegaly were also present. METHODS:Whole-genome SNP genotyping in all the patients, followed by exome sequencing was performed in one of the affected siblings. RESULTS:A homozygous c.409C > T (p.Arg137Trp) missense mutation in NBAS was identified in all patients. CONCLUSION:Overall, our findings confirm the involvement of NBAS in the pathogenesis of this condition characterized by severe liver dysfunction and help expand its phenotypical spectrum.
journal_name
Eur J Med Genetjournal_title
European journal of medical geneticsauthors
Capo-Chichi JM,Mehawej C,Delague V,Caillaud C,Khneisser I,Hamdan FF,Michaud JL,Kibar Z,Mégarbané Adoi
10.1016/j.ejmg.2015.11.005subject
Has Abstractpub_date
2015-12-01 00:00:00pages
637-41issue
12eissn
1769-7212issn
1878-0849pii
S1769-7212(15)30043-4journal_volume
58pub_type
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