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Title: Linkage and association of HLA class II genes with vitiligo in a Dutch population
Authors: Zamani, M ×
Spaepen, Marijke
Sghar, S S
Huang, C
Westerhof, W
Nieuweboer-Krobotova, L
Cassiman, Jean-Jacques #
Issue Date: Jul-2001
Series Title: British Journal of Dermatology vol:145 issue:1 pages:90-4
Abstract: BACKGROUND: Serological typing of HLA has shown discrepancies in HLA associations with vitiligo in different ethnic populations. OBJECTIVES: To perform genotyping of HLA class II genes on a Dutch vitiligo population in order clearly to identify susceptible and protective HLA alleles in vitiligo. METHODS: HLA typing was carried out by amplifying genomic DNA by polymerase chain reaction (PCR) followed by dot-blot hybridization with sequence-specific oligonucleotides (SSO). Fifty Dutch vitiligo probands, and their parents (150 individuals) and 204 healthy controls were studied. RESULTS: Family-based case-control association studies and linkage disequilibrium analysis showed the linkage and association of DRB4*0101 allele with vitiligo (P(c) = 0.0016, relative risk = 2.21). The family-based association study also provided evidence for linkage and association of DQB1*0303 allele with vitiligo (chi(2) = 7.36, P = 0.006). We measured the clinical relevance of the test by calculating the prevalence corrected positive predictive values (PcPPV). The PcPPV of disease for the DRB4*0101 allele was 0.017 and for the DRB4*0101/0101 genotype was 0.0358. In other words, a DRB4*0101/0101 genotype carries a 3.58% risk of developing vitiligo. CONCLUSIONS: Both DRB4*0101 and DQB1*0303 alleles provide significant susceptibility for vitiligo.
URI: 
ISSN: 0007-0963
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Human Mutations and Polymorphisms Section (-)
Forensic Biomedical Sciences
× corresponding author
# (joint) last author

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