Novel nonsense mutation of ABHD5 in Dorfman-Chanarin syndrome with unusual findings: a challenge for genotype-phenotype correlation

Eur J Med Genet. 2012 Mar;55(3):173-7. doi: 10.1016/j.ejmg.2012.01.013. Epub 2012 Feb 6.

Abstract

Dorfman-Chanarin syndrome is a rare neutral lipid disorder characterised by icthyosis, hepatic steatosis and multisystemic involvement of varying magnitude. It is an autosomal recessive disease caused by mutations in the ABHD5 gene. We report a consanguineous family of Afgani origin, with four affected siblings who were found to have a novel homozygous nonsense mutation g. [27606 G > T]; [27606 G > T]. The clinical findings were unusual in the form of early cirrhosis and hepatic decompensation in one sibling, presence of corneal opacities in male siblings and tessellated fundus in all affected children. Steatosis was minimal in liver biopsy specimens and all children had low vitamin D levels. Genotype-phenotype correlations have not been possible in Dorfman-Chanarin syndrome and the present report raises further challenges for the same.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • 1-Acylglycerol-3-Phosphate O-Acyltransferase / genetics*
  • Child
  • Child, Preschool
  • Codon, Nonsense
  • Female
  • Genotype
  • Humans
  • Ichthyosiform Erythroderma, Congenital / diagnosis
  • Ichthyosiform Erythroderma, Congenital / genetics*
  • Lipid Metabolism, Inborn Errors / diagnosis
  • Lipid Metabolism, Inborn Errors / genetics*
  • Male
  • Muscular Diseases / diagnosis
  • Muscular Diseases / genetics*
  • Phenotype

Substances

  • Codon, Nonsense
  • 1-Acylglycerol-3-Phosphate O-Acyltransferase
  • ABHD5 protein, human

Supplementary concepts

  • Chanarin-Dorfman Syndrome