Korean J Intern Med.  2009 Mar;24(1):68-72. 10.3904/kjim.2009.24.1.68.

Novel LMNA Gene Mutation in a Patient With Atypical Werner's Syndrome

Affiliations
  • 1Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. leei@knu.ac.kr
  • 2Department of Internal Medicine, School of Medicine, Catholic University of Daegu, Daegu, Korea.

Abstract

Hutchinson-Gilford progeria syndrome (HGPS) and Werner's syndrome are representative types of progeroid syndrome. LMNA (Lamin A/C) gene mutation with atypical Werner's syndrome have recently been reported. Atypical Werner's syndrome with the severe metabolic complications, the extent of the lipodystrophy is associated with A133L mutation in the LMNA gene and these patients present with phenotypically heterogeneous disorders. We experienced a 15-yr-old Korean female with progeroid features, generalized lipodystrophy, hypertriglyceridemia, fatty liver, steatohepatitis, and type 2 diabetes mellitus. Skin fibroblasts from the patient showed marked abnormal nuclear morphology, compared with that from normal persons. Gene analysis revealed that this patient had T506del of exon 2 in the LMNA gene. We report here the first case of atypical Werner's syndrome with frameshift mutation that was caused by T506del.

Keyword

Progeroid syndrome; Werner's syndrome; LMNA, T506del

MeSH Terms

Adolescent
DNA/*genetics
Exons
Female
Genetic Predisposition to Disease
Humans
Lamin Type A/*genetics/metabolism
Lipodystrophy
*Mutation
Sequence Analysis, DNA
Skin/metabolism/pathology
Werner Syndrome/diagnosis/*genetics/metabolism
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