Autosomal recessive hypercholesterolemia in a Sicilian kindred harboring the 432insA mutation of the ARH gene

C. M. Barbagallo, G. Emmanuele, A. B. Cefalù, B. Fiore, D. Noto, M. C. Mazzarino, A. Pace, A. Brogna, M. Rizzo, A. Corsini, A. Notarbartolo, S. Travali, M. R. Averna

Research output: Contribution to journalArticle

Abstract

We describe a Sicilian family presenting a recessive form of hypercholesterolemia harboring a mutation of the autosomal recessive hypercholesterolemia (ARH) gene. In two of the three sibs, a 26-year-old male and a 22-year-old female, a severe hypercholesterolemia was diagnosed with very high levels of plasma cholesterol (15.9 and 12.2 mmol/l, respectively); tendon xanthomatas and xanthelasms were present and in the male proband was documented a diffuse coronary atherosclerotic disease with a rapid and fatal progression. Both the parents had normal or slightly increased levels of plasma cholesterol. All causes of secondary hypercholesterolemia were ruled out as well as an involvement of the LDL receptor or apoB genes. β-Sitosterol plasma levels were in the normal range. Cultured fibroblasts from skin biopsy from parents and the two probands displayed a normal ability to bind and degrade 125I-LDL. Direct sequencing of ARH gene demonstrated the presence of a 432insA mutation in homozygosis in the two probands; parents were heterozygotes for the same mutation. This mutation is the first report of a mutation of the ARH gene responsible for recessive forms of hypercholesterolemia in Sicily.

Original languageEnglish
Pages (from-to)395-400
Number of pages6
JournalAtherosclerosis
Volume166
Issue number2
DOIs
Publication statusPublished - Feb 1 2003

Keywords

  • ARH gene
  • Autosomal recessive hypercholesterolemia
  • Mutation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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    Barbagallo, C. M., Emmanuele, G., Cefalù, A. B., Fiore, B., Noto, D., Mazzarino, M. C., Pace, A., Brogna, A., Rizzo, M., Corsini, A., Notarbartolo, A., Travali, S., & Averna, M. R. (2003). Autosomal recessive hypercholesterolemia in a Sicilian kindred harboring the 432insA mutation of the ARH gene. Atherosclerosis, 166(2), 395-400. https://doi.org/10.1016/S0021-9150(02)00379-9