Lack of association of HLA-B*51 with a severe disease course in Behcet's disease.

Authors: Gul, A  Uyar, FA  Inanc, M  Ocal, L  Tugal-Tutkun, I  Aral, O  Konice, M  Saruhan-Direskeneli, G 
Citation: Gul A, etal., Rheumatology (Oxford). 2001 Jun;40(6):668-72.
Pubmed: (View Article at PubMed) PMID:11426025

OBJECTIVE: To investigate the previously reported association of HLA-B51 with the manifestations and severity of Behcet's disease (BD). METHODS: The study group consisted of 148 consecutive BD patients (89 male, 59 female) with a minimum disease duration of 5 yr followed up at an out-patient BD clinic in a tertiary referral centre. The patients were classified into three severity groups (mild, moderate, severe) using a modified form of the BD total activity index. HLA-B alleles were determined by DNA amplification using the polymerase chain reaction and sequential hybridization with sequence-specific oligonucleotide probes. RESULTS: The frequencies of genital ulceration [odds ratio (OR)=3.1, 95% confidence interval (CI) 1.3-7.5], skin findings (erythema nodosum, folliculitis or acne-like lesions) (OR=4.4, 95% CI 1.1-17.7), a positive skin pathergy test (OR=3.4, 95% CI 1.1-10.9) and eye disease (OR=1.8, 95% CI 0.9-3.7) were all higher in B*51-positive patients. By contrast, no significant association was observed between B*51 positivity and a severe disease course, and B*51 homozygosity did not exhibit a prominent association with the severity of BD. Male sex was found to be the strongest determinant of the severity of BD by logistic regression analysis (OR=4.7, 95% CI 1.9-11.2). CONCLUSION: HLA-B*51 does not exhibit a strong association with a more severe disease course in BD. The involvement of other genetic and/or environmental factors seems to be required and to be more important than B*51 for the progression of BD.

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CRRD Object Information
CRRD ID: 7364939
Created: 2013-10-11
Species: All species
Last Modified: 2013-10-11
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.