Background: TGF-β1 gene (TGFB1) is one of the target genes involved in genetic predisposition to autoimmune diseases, particularly Hashimoto's thyroiditis (HT).
Objective: In the present study, we attempted to investigate whether -509C/T SNP (rs1800469) in the promoter of TGFB1 is associated with the genetic susceptibility and clinical characteristics of Bulgarian patients with HT. We also analyzed serum TGF-β1 levels in different stages of the disease and its association with the -509C/T polymorphism in the TGFB1 promoter.
Unlabelled: Clinical significance of autoantibodies to parietal cells (PCA) in patients with autoimmune thyroid diseases (ATD) remains contradictory.
Aim: To characterize the frequency of PCA in patients with ATD; to clarify the role of gender and age in PCA positivity; to analyze the association of PCA with gastric or haematologic symptoms and with the levothyroxine dose required to achieve a serum TSH level within the normal range in treated Hashimoto's thyroiditis (HT) patients.
Patients And Methods: PCA were measured using ELISA in 137 HT patients, divided into tree subgroups according to the thyroid function: group I included subjects with normal thyroid function; group II included patients with hypothyroidism, in group III were enrolled subjects treated with levothyroxine (LT4).