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  • Title: Investigation of interleukin-12, interleukin-17 and interleukin-23 receptor gene polymorphisms in alopecia areata.
    Author: Aytekin N, Akcali C, Pehlivan S, Kirtak N, Inaloz S.
    Journal: J Int Med Res; 2015 Aug; 43(4):526-34. PubMed ID: 26017027.
    Abstract:
    OBJECTIVE: To investigate the distribution of interleukin (IL)-12 (IL12; 1188A/C), IL17 (A7488G) and IL-23 receptor (IL23R; +2199A/C) gene polymorphisms in patients with alopecia areata. METHODS: Patients with alopecia areata and healthy controls were enrolled in this case-control study. Genotyping of the IL12 (1188A/C), IL17 (A7488G) and IL23R (+2199A/C) polymorphisms was undertaken. Genotype frequencies were compared between the two groups. RESULTS: The study enrolled 100 patients with alopecia areata and 71 control subjects. No significant differences were found in the frequencies for the IL12 and IL23R gene polymorphisms between the patient and control groups. The IL17 GG genotype was significantly more common and the IL17 GA genotype was significantly less common in patients with alopecia areata compared with controls, but only 10% of patients had the GG genotype. CONCLUSION: The IL17 GG genotype was associated with susceptibility for alopecia areata, but this genotype was only present in a small number of patients. The IL12 and IL23R gene polymorphisms were not found to have a significant association with alopecia areata.
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