Investigating the possible role of toxoplasmosis and Interleukin-1β variants on the immune response in Egyptian diabetic patients.

The study assesses toxoplasmosis seroprevalence in Type 2 Diabetes Mellitus, identifies the potential risk factors, and examines IL-1β expression levels and polymorphisms in those infected with T. gondii. One hundred healthy controls and 200 diabetic patients participated in the study. Diagnosis was made by Immunoassay to measure antibodies of T. gondii, IgM, and IgG, and molecular by targeting the 529 RE gene. Quantitative measurement of IL-1β levels was done, and genetic polymorphisms were assessed. Among diabetic patients, 61.0 % were seropositive for T. gondii IgG, compared to 36.0 % in healthy controls. Significant associations were found with IgG and IgM (P = 0.0001, 0.022), respectively. Patients with diabetes and toxoplasmosis had significantly high levels of IL-1β (P = 0.0003). The +3954C/T variant showed a higher prevalence of CT and lower TT genotypes in T2DM patients, P = 0.017, 0.003, respectively. The CT genotype is considered a genetic risk factor for diabetic patients, and the TT genotype and T allele may increase susceptibility to infection with toxoplasmosis. The prevalence of toxoplasmosis in T2DM, levels of IL-1β, and +3954C/T polymorphism seem to be important factors for developing complications in diabetic patients infected with toxoplasmosis.