The association of PTPN22 (rs2476601) and IL2RA (rs11594656) polymorphisms with T1D in Egyptian children

Autor: Doaa M. Abd Elrahman, Laila M. Sherief, Hadeel M. Abdelrahman, Hosam F. Elsaadani, Randa H. Mohamed, Ashgan A. Alghobashy
Rok vydání: 2016
Předmět:
Zdroj: Human Immunology. 77:682-686
ISSN: 0198-8859
DOI: 10.1016/j.humimm.2016.06.006
Popis: Background Type 1 diabetes mellitus (T1D) is a T cell-mediated autoimmune disease characterized by the destruction of pancreatic β cells. PTPN22 and IL2RA polymorphisms have been found to be associated with several autoimmune diseases including T1D. Aims We aimed to elucidate the role of PTPN22 and IL2RA polymorphisms in predisposition of T1D in Egyptian children. Methods We studied 150 children and adolescents with T1D and 165 healthy controls. The PTPN22 (rs2476601) and IL2RA (rs11594656) polymorphisms were genotyped using polymerase chain reaction. Results We found that carriers of the T allele of PTPN22 were significantly more likely to develop T1D (OR = 2.2, 95% CI = 1.2–4, P = 0.01). Also, the carrier of TT genotype and T allele of IL2RA more likely to develop T1D (OR = 2.8, 1.4, respectively, P = 0.03). There was a statistically significant association between T allele of PTPN22 gene and females ⩽10 years old at the onset of diabetes (OR = 4, 95% CI = 1.2–13.4, P = 0.019). Conclusion This study suggests a possible association between the T allele of PTPN22 gene and TT genotype of IL2RA with T1D in studied Egyptian children, especially, females with early onset diabetes who carried the 1858T allele.
Databáze: OpenAIRE