R620W polymorphism of protein tyrosine phosphatase PTPN22 in Egyptian children and adolescents with systemic lupus erythematosus: relation to thyroid autoimmunity

Abstract

R620W polymorphism of the PTPN22 gene is not a major risk allele for SLE susceptibility among Egyptian SLE patients but appears to be a risk factor for concurrent autoimmune thyroid disease and SLE.