Loss-of-function polymorphisms in the filaggrin gene are associated with an increased susceptibility to chronic irritant contact dermatitis: a case-control study

被引:95
作者
de Jongh, C. M. [1 ,2 ]
Khrenova, L. [3 ]
Verberk, M. M. [1 ]
Calkoen, F. [1 ]
van Dijk, F. J. H. [1 ]
Voss, H. [3 ]
John, S. M. [3 ]
Kezic, S. [1 ]
机构
[1] Univ Amsterdam, Acad Med Ctr, Coronel Inst Occupat Hlth, NL-1100 DE Amsterdam, Netherlands
[2] Natl Inst Publ Hlth & Environm, Natl Poisons Informat Ctr, NL-3720 BA Bilthoven, Netherlands
[3] Univ Osnabruck, Dept Dermatol Environm Med & Hlth Theory, Osnabruck, Germany
关键词
filaggrin; genetic susceptibility; irritant contact dermatitis; occupational health; polymorphism;
D O I
10.1111/j.1365-2133.2008.08730.x
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
Background Polymorphisms in the filaggrin (FLG) gene, which result in loss of filaggrin production, may alter the skin barrier and are a well-known predisposing factor for atopic dermatitis. Objectives As a compromised skin barrier and atopic dermatitis are risk factors for chronic irritant contact dermatitis (CICD), our objective was to determine whether polymorphisms in the FLG gene contribute towards susceptibility to occupational CICD. Methods In a case-control study, the FLG polymorphisms R501X and 2282del4 were determined in 296 patients with CICD. Two hundred and seventeen apprentices in vocational training for high-risk occupations for CICD were chosen as controls. Data on skin diseases and conditions were collected by dermatologists from patients and by means of questionnaires from controls. Results Heterozygotes for R501X and 2282del4, FLG null alleles, were more frequent among patients with CICD (12.5%) compared with controls (6.9%), resulting in an odds ratio of 1.91 (95% confidence interval 1.02-3.59). Among patients who were carriers of a FLG null allele, we found a higher lifetime prevalence of flexural eczema (62% vs. 46%; P = 0.04) and a higher atopy score (13 vs. 10 points; P = 0.05) compared with noncarriers. In the apprentice group, signs of dermatitis before the start of the vocational training were four times more prevalent in carriers (43%) than in noncarriers (10%; P < 0.001). Conclusions Our study shows that FLG null alleles are associated with increased susceptibility to CICD; whether or not the FLG null allele is an independent risk factor needs further study.
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收藏
页码:621 / 627
页数:7
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