Immunogenetic features of thyroid gland dysfunction combined with metabolic syndrome

Abstract

A comparative analysis of the changes in the immune and genetic status in patients with metabolic syndrome (MetS) combined with thyroid pathology has been performed in comparison with patients only with MetS or thyroid gland (TG) dysfunction.

Materials and methods: 90 patients were recruited and assigned to one of three groups: A group of patients with MetS and TG dysfunction; a group of patients only with MetS; group of patients only with TG dysfunction. All patients underwent immune status assessment – CD3, CD4, CD8, CD16, CD4 +/CD8 +, and tumour necrosis factor (TNF) and C-reactive protein (CRP) levels were studied in a biochemical blood test. Genetic analysis consisted in determining the frequencies of alleles and genotypes of four polymorphic markers: rs10865710 of the PPARG3 gene, rs1042713 and rs1042711 of the ADRB2 gene and rs5443 of the GNB3 gene. Results: The combination of MetS with TG dysfunction regardless of the presence or absence of autoimmune thyroid diseases was characterized by aggravation of disorders in the Tand B-cell components of immune system, an increase in IgG, CRP, and TNF levels. Genetic analysis showed frequent detection of the A allele, the AA genotype of the polymorphic marker rs1042713 of the ADRB2 gene, coding β2-adrenoreceptor in the Kazakh population.