The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis

Jacob Pontoppidan Thyssen; Jeanne Duus Johansen; Berit Christina Carlsen; Allan Linneberg; Michael Meldgaard; Pal Bela Szecsi; Steen Stender; Torkil Menné

doi:10.1111/j.1468-3083.2011.04107.x

The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis

Jacob Pontoppidan Thyssen, Jeanne Duus Johansen, Berit Christina Carlsen, Allan Linneberg, Michael Meldgaard, Pal Bela Szecsi, Steen Stender, Torkil Menné

13 Citations (Scopus)

Abstract

Background Psoriasis vulgaris could be associated with the filaggrin null genotype since certain known susceptibility loci for psoriasis are shared with susceptibility loci for atopic dermatitis. Furthermore, filaggrin expression is lowered in psoriatic skin lesions but normally expressed in uninvolved skin. So far five relatively small patient-based case-control studies have rejected a possible association between psoriasis and the two most prevalent filaggrin null mutations, 2282del4 and R501X. Objectives To reinvestigate a possible association between psoriasis and filaggrin null mutation status by using cross-sectional general population questionnaire data. Also, to perform a meta-analysis including published studies that investigated the relation between filaggrin gene mutations R501X and 2282del4, respectively, and psoriasis vulgaris. Methods Between June 2006 and May 2008, a cross-sectional study was performed in the general population in Copenhagen. A random sample of 7931 subjects aged 18-69 years was invited to participate in a general health examination including a questionnaire and 3471 (43.7%) participated. A total of 3335 (96.1%) individuals were filaggrin genotyped for the 2282del4 and R501X mutations. A meta-analysis was undertaken to investigate the relation between filaggrin gene mutations and psoriasis vulgaris. Results The prevalence of self-reported psoriasis was 6.7% among the 3240 respondents. The prevalence of the R501X and 2282del4 filaggrin null genotypes was 9.3% in subjects who reported psoriasis and 8.0% in subjects who did not report psoriasis (OR = 1.28; 95% CI = 0.74-1.89; P = 0.78). The meta-analysis found no association between the filaggrin null genotypes R501X and 2282del4 and psoriasis (OR = 1.04; 95% CI = 0.81-1.35). Conclusions Psoriasis was not associated with the R501X and 2282del4 filaggrin null genotypes in a general population study and in a meta-analysis on published studies.

Original language	English
Journal	Journal of the European Academy of Dermatology and Venereology
Volume	26
Issue number	6
Pages (from-to)	782-784
ISSN	0926-9959
DOIs	https://doi.org/10.1111/j.1468-3083.2011.04107.x
Publication status	Published - Jun 2012

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10.1111/j.1468-3083.2011.04107.x

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Thyssen, J. P., Johansen, J. D., Carlsen, B. C., Linneberg, A., Meldgaard, M., Szecsi, P. B., Stender, S., & Menné, T. (2012). The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis. Journal of the European Academy of Dermatology and Venereology, 26(6), 782-784. https://doi.org/10.1111/j.1468-3083.2011.04107.x

The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis. / Thyssen, Jacob Pontoppidan ; Johansen, Jeanne Duus; Carlsen, Berit Christina et al.
In: Journal of the European Academy of Dermatology and Venereology, Vol. 26, No. 6, 06.2012, p. 782-784.

Research output: Contribution to journal › Journal article › Research › peer-review

Thyssen, JP , Johansen, JD, Carlsen, BC, Linneberg, A, Meldgaard, M, Szecsi, PB, Stender, S & Menné, T 2012, 'The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis', Journal of the European Academy of Dermatology and Venereology, vol. 26, no. 6, pp. 782-784. https://doi.org/10.1111/j.1468-3083.2011.04107.x

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title = "The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis",

abstract = "Background Psoriasis vulgaris could be associated with the filaggrin null genotype since certain known susceptibility loci for psoriasis are shared with susceptibility loci for atopic dermatitis. Furthermore, filaggrin expression is lowered in psoriatic skin lesions but normally expressed in uninvolved skin. So far five relatively small patient-based case-control studies have rejected a possible association between psoriasis and the two most prevalent filaggrin null mutations, 2282del4 and R501X. Objectives To reinvestigate a possible association between psoriasis and filaggrin null mutation status by using cross-sectional general population questionnaire data. Also, to perform a meta-analysis including published studies that investigated the relation between filaggrin gene mutations R501X and 2282del4, respectively, and psoriasis vulgaris. Methods Between June 2006 and May 2008, a cross-sectional study was performed in the general population in Copenhagen. A random sample of 7931 subjects aged 18-69 years was invited to participate in a general health examination including a questionnaire and 3471 (43.7%) participated. A total of 3335 (96.1%) individuals were filaggrin genotyped for the 2282del4 and R501X mutations. A meta-analysis was undertaken to investigate the relation between filaggrin gene mutations and psoriasis vulgaris. Results The prevalence of self-reported psoriasis was 6.7% among the 3240 respondents. The prevalence of the R501X and 2282del4 filaggrin null genotypes was 9.3% in subjects who reported psoriasis and 8.0% in subjects who did not report psoriasis (OR = 1.28; 95% CI = 0.74-1.89; P = 0.78). The meta-analysis found no association between the filaggrin null genotypes R501X and 2282del4 and psoriasis (OR = 1.04; 95% CI = 0.81-1.35). Conclusions Psoriasis was not associated with the R501X and 2282del4 filaggrin null genotypes in a general population study and in a meta-analysis on published studies.",

author = "Thyssen, {Jacob Pontoppidan} and Johansen, {Jeanne Duus} and Carlsen, {Berit Christina} and Allan Linneberg and Michael Meldgaard and Szecsi, {Pal Bela} and Steen Stender and Torkil Menn{\'e}",

note = "{\textcopyright} 2011 The Authors. Journal of the European Academy of Dermatology and Venereology {\textcopyright} 2011 European Academy of Dermatology and Venereology.",

year = "2012",

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doi = "10.1111/j.1468-3083.2011.04107.x",

language = "English",

volume = "26",

pages = "782--784",

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issn = "0926-9959",

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TY - JOUR

T1 - The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis

AU - Thyssen, Jacob Pontoppidan

AU - Johansen, Jeanne Duus

AU - Carlsen, Berit Christina

AU - Linneberg, Allan

AU - Meldgaard, Michael

AU - Szecsi, Pal Bela

AU - Stender, Steen

AU - Menné, Torkil

PY - 2012/6

Y1 - 2012/6

N2 - Background Psoriasis vulgaris could be associated with the filaggrin null genotype since certain known susceptibility loci for psoriasis are shared with susceptibility loci for atopic dermatitis. Furthermore, filaggrin expression is lowered in psoriatic skin lesions but normally expressed in uninvolved skin. So far five relatively small patient-based case-control studies have rejected a possible association between psoriasis and the two most prevalent filaggrin null mutations, 2282del4 and R501X. Objectives To reinvestigate a possible association between psoriasis and filaggrin null mutation status by using cross-sectional general population questionnaire data. Also, to perform a meta-analysis including published studies that investigated the relation between filaggrin gene mutations R501X and 2282del4, respectively, and psoriasis vulgaris. Methods Between June 2006 and May 2008, a cross-sectional study was performed in the general population in Copenhagen. A random sample of 7931 subjects aged 18-69 years was invited to participate in a general health examination including a questionnaire and 3471 (43.7%) participated. A total of 3335 (96.1%) individuals were filaggrin genotyped for the 2282del4 and R501X mutations. A meta-analysis was undertaken to investigate the relation between filaggrin gene mutations and psoriasis vulgaris. Results The prevalence of self-reported psoriasis was 6.7% among the 3240 respondents. The prevalence of the R501X and 2282del4 filaggrin null genotypes was 9.3% in subjects who reported psoriasis and 8.0% in subjects who did not report psoriasis (OR = 1.28; 95% CI = 0.74-1.89; P = 0.78). The meta-analysis found no association between the filaggrin null genotypes R501X and 2282del4 and psoriasis (OR = 1.04; 95% CI = 0.81-1.35). Conclusions Psoriasis was not associated with the R501X and 2282del4 filaggrin null genotypes in a general population study and in a meta-analysis on published studies.

AB - Background Psoriasis vulgaris could be associated with the filaggrin null genotype since certain known susceptibility loci for psoriasis are shared with susceptibility loci for atopic dermatitis. Furthermore, filaggrin expression is lowered in psoriatic skin lesions but normally expressed in uninvolved skin. So far five relatively small patient-based case-control studies have rejected a possible association between psoriasis and the two most prevalent filaggrin null mutations, 2282del4 and R501X. Objectives To reinvestigate a possible association between psoriasis and filaggrin null mutation status by using cross-sectional general population questionnaire data. Also, to perform a meta-analysis including published studies that investigated the relation between filaggrin gene mutations R501X and 2282del4, respectively, and psoriasis vulgaris. Methods Between June 2006 and May 2008, a cross-sectional study was performed in the general population in Copenhagen. A random sample of 7931 subjects aged 18-69 years was invited to participate in a general health examination including a questionnaire and 3471 (43.7%) participated. A total of 3335 (96.1%) individuals were filaggrin genotyped for the 2282del4 and R501X mutations. A meta-analysis was undertaken to investigate the relation between filaggrin gene mutations and psoriasis vulgaris. Results The prevalence of self-reported psoriasis was 6.7% among the 3240 respondents. The prevalence of the R501X and 2282del4 filaggrin null genotypes was 9.3% in subjects who reported psoriasis and 8.0% in subjects who did not report psoriasis (OR = 1.28; 95% CI = 0.74-1.89; P = 0.78). The meta-analysis found no association between the filaggrin null genotypes R501X and 2282del4 and psoriasis (OR = 1.04; 95% CI = 0.81-1.35). Conclusions Psoriasis was not associated with the R501X and 2282del4 filaggrin null genotypes in a general population study and in a meta-analysis on published studies.

U2 - 10.1111/j.1468-3083.2011.04107.x

DO - 10.1111/j.1468-3083.2011.04107.x

M3 - Journal article

C2 - 21564328

SN - 0926-9959

VL - 26

SP - 782

EP - 784

JO - Journal of the European Academy of Dermatology and Venereology

JF - Journal of the European Academy of Dermatology and Venereology

IS - 6

ER -

The filaggrin null genotypes R501X and 2282del4 seem not to be associated with psoriasis: results from general population study and meta-analysis

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