Abstract:
BACKGROUND:The aim of this study was to investigate possible associations of the five DNA polymorphic genotypes in the HLA region (transporter associated with antigen processing [TAP1; TAP1 333 a/b, TAP1 637 c/d], the HLA-DRB1*1501-rs3135388, tumor necrosis factor [TNF]α [-238 G/A] and NcoI TNFβ) with characteristics of family history in patients with psoriasis vulgaris. MATERIALS AND METHODS:A total of 201 Czech patients with psoriasis were enrolled in the study. The patients were genotyped for the five common polymorphisms in TAP1, TNFα, and TNFβ genes (6p21.3) using the polymerase chain reaction-restriction fragment length polymorphism-based methodology. RESULTS:We observed significantly higher prevalence of Ile333Ile TAP1 allele in patients whose first-degree relatives had a positive family history of psoriasis (Pa = 0.04). No differences related to family history of psoriasis were observed in HLA-DRB1*1501 polymorphism. As for the TNFα (-238 G/A) polymorphism, a significant increase of the GG genotype was observed in patients, especially men with second- and third-degree relatives with psoriasis (Pg = 0.008). Similarly, the B2B2 genotype of NcoI TNFβ polymorphism was more frequent in psoriatic patients, especially women, whose second- and third-degree relatives had psoriasis (Pg = 0.004). Finally, the haplotype analysis of all five polymorphisms revealed that the frequency of haplotype bcCB1A was different between not only men and women with psoriasis (P = 0.007) but also between men and women without a family history of psoriasis (P = 0.007). CONCLUSIONS:Haplotype association of HLA gene polymorphisms with genealogy aspects of psoriasis facilitates a better understanding of etiopathogenetic aspects of the diseases.
journal_name
Int J Dermatoljournal_title
International journal of dermatologyauthors
Vasku A,Bienertova-Vasku J,Izakovicova-Holla L,Pavkova Goldbergova M,Kozacikova Z,Splichal Z,Vasku Vdoi
10.1111/ijd.12213subject
Has Abstractpub_date
2013-08-01 00:00:00pages
960-5issue
8eissn
0011-9059issn
1365-4632journal_volume
52pub_type
杂志文章abstract::Currently available treatment options for melasma include prevention of UV radiation, topical lightening agents, chemical peels, and light-based and laser therapies. However, none have shown effective and sustained results, with incomplete clearance and frequent recurrences. There has been increasing interest recently...
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