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*Corresponding Author: Abdulsamie Hassan Alta'ee,
Alopecia areata (AA) is a dermatological disease featured by non-scarring hair loss of the scalp and/or body, with a variable and unpredictable development in the patients in whom, despite diverse efforts, its cause is not yet fully known, some signs suggest that genetic, environmental and immunological factors may cause the disease. Cytotoxic T-lymphocyte antigen-4 (CTLA-4) said negative T cell proliferation regulator by attenuating either T-cell response post-activation or by preventing the activation of self-reactive T cells. The present study, aims to report the impact of the (CT60) CTLA-4 gene polymorphism (rs3087243) on the CTLA-4 levels in plasma samples of AA Iraqi patients.
Alopecia areata, Hair loss, CTLA-4, CT60 Polymorphism