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Background and Aim: Interferon-induced helicase (IFIH1) is a gene locus that has been recently defined as a candidate for susceptibility to generalized vitiligo (GV). The objectives of this study were to assess the association of IFIH1 gene, rs2111485 and rs1990760 single-nucleotide polymorphisms (SNP) with susceptibility to GV and the autoimmune diseases accompanying to GV. Materials and Methods: We prospectively studied GV patients and frequency-matched healthy controls by age and gender. The genotypes of the participants were determined for rs1990760 and rs2111485 SNPs of IFIH1. Dominant, recessive and additive models were evaluated for each SNP adjusted for age and gender. Results: The patients and their controls were demonstrated to be in the Hardy-Weinberg equilibrium for SNP1 (2q24.2, rs1990760, IFIH1, T/C) and SNP2 (2q24.2, rs2111485, IFIH1, G/A) respectively (all p> 0.7). For SNP1 every T allel addition was significantly associated with 1.53 times protectiveness in terms of vitiligo risk (P= 0.033). As for SNP2 every G allel addition was associated with 1.42 times protectiveness, close to statistical significance (P= 0.100). Conclusions: We detected that for SNP1 each T allel and for SNP2 each G allel are protective in terms of vitiligo development. Hereby, we confirmed that IFIH1 gene locus has a role in GV susceptibility. Keywords: Vitiligo, single nucleotide polymorphism, genes

Tattoos are popular body decorations mainly done for cosmetic purposes. Regarded as a form of self-expression, tattoos reflect the character of the person wearing it. However, as tatoos are persistent visual markings on the body, frequently misperceived by the others causing tattooed to seek removal. Today most of the tattoos can be successfully treated with laser ablation. Here we present a case of generalized allergic contact dermatitis after laser tattoo removal which is a rare adverse reaction of laser tattoo removal.

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