An autosomal genome-wide screen for celiac disease in Bedouin families

Genes Immun. 2008 Jan;9(1):81-6. doi: 10.1038/sj.gene.6364439. Epub 2007 Oct 18.

Abstract

Celiac disease is a common, familial autoimmune disease caused by exposure to gliadin in wheat, and related prolamins in barley and rye. The prevalence of the disease is approximately 1:133. Celiac disease can cause significant morbidity. The only treatment is a gluten-free diet. A genome-wide search of 405 microsatellite markers was performed on samples from 18 Bedouin families with a minimum of two cases of celiac disease. Non-parametric and parametric (including both dominant and recessive models of inheritance) linkage analyses were performed. The most significant genome-wide linkage evidence was at chromosome 3p26 with an HLod of 3.21, under the dominant model. The only other HLod or NPL greater than 2 was at 4q35, with an HLod of 2.15 under a dominant model. The region at 3p26, previously reported in two linkage analyses, harbors interleukin receptor genes, plausible candidates for celiac disease.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Arabs / genetics*
  • Celiac Disease / genetics*
  • Chromosomes, Human, Pair 3
  • Chromosomes, Human, Pair 4
  • Family*
  • Genes, Dominant
  • Genes, Recessive
  • Genetic Heterogeneity
  • Genetic Linkage
  • Genetic Markers
  • Genetic Testing*
  • Genome, Human*
  • Haplotypes
  • Humans
  • Lod Score
  • Microsatellite Repeats
  • Models, Genetic
  • Pedigree
  • Statistics, Nonparametric

Substances

  • Genetic Markers