Abstract:
BACKGROUND:Vitiligo is a pigmentation disorder of autoimmune aetiology. Polymorphisms in beta-defensin genes have been linked to a predisposition to some autoimmune disorders. AIM:To evaluate the role of polymorphisms in DEFB1, the gene encoding for human beta-defensin (HBD)-1 and its 5' untranslated region in nonsegmental vitiligo. METHODS:In total, 354 participants [171 patients with non-segmental vitiligo and 183 age and sex-matched healthy controls (HCs)], were genotyped by the PCR-restriction fragment length polymorphism (RFLP) method. For 80 of these individuals (40 patients and -40 HCs) serum HBD-1 was also measured by ELISA. RESULTS:The -44 G allele, CG genotype and GGG haplotype increased the risk for vitiligo (P < 0.02 in all cases), whereas the -20 AA genotype seems to be protective (P = 0.04). Serum HBD-1 levels were lower in patients with vitiligo than in HCs (P < 0.01), as well as in patients with active vitiligo compared with those with stable vitiligo and with HCs (P < 0.05 in both cases), CONCLUSION: Our results suggest that HBD-1 and its gene polymorphisms may modulate vitiligo susceptibility and/or disease activity. This is the first report, to our knowledge, of the association of serum HBD-1 levels and DEFB1 gene polymorphisms with vitiligo.
journal_name
Clin Exp Dermatoljournal_title
Clinical and experimental dermatologyauthors
Ochoa-Ramírez LA,Becerra-Loaiza DS,Díaz-Camacho SP,Muñoz-Estrada VF,Ríos-Burgueño ER,Prado-Montes de Oca E,Rangel-Villalobos H,Velarde-Félix JSdoi
10.1111/ced.13697subject
Has Abstractpub_date
2019-04-01 00:00:00pages
277-282issue
3eissn
0307-6938issn
1365-2230journal_volume
44pub_type
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