Investigation of interleukin-12, interleukin-17 and interleukin-23 receptor gene polymorphisms in alopecia areata.

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.