Among autoimmune diseases, Hashimoto's thyroiditis (HT) is the most common where the thyroid stimulating hormone (TSH) levels are up, serum free thyroxine (FT4) levels are low, anti-thyroid autoantibodies like TPOAb and anti-thyroglobulin (TGAb) are present, and there is local parenchymal lymphocytic infiltrate. According to studies, eutrophic women with thyroid autoimmunity (TAI) have a greater risk of pregnancy morbidity and loss. Also, inflammatory processes of viral/bacterial origin and autoimmune have been identified as influencing cellular structures at the maternal-fetal interface and determining various abnormalities in the product of conception. Research of the role of TAI in infertility and assisted reproduction results in women without dysfunction found that TAI had no effect on the number of oocytes retrieved, the chance of fertilization, implantation or clinical pregnancy.
In order to assess the presence as well as concentration of antithyroglobulin (TGAb) antibodies and antithyroid peroxidase at the onset of Hashimoto's thyroiditis (HT) as well as their correlation with disease attributes and reproductive parameters both before and after diagnosis, Rafaela and colleagues conducted this study.
A total of 65 women with HT were included in this cross-sectional research, which was conducted in an outpatient clinic. Medical records were reviewed and interviews were conducted to gather data. The factors included illness features, TPOAb and TGAb levels, live births, preterm births, infertility and pregnancy losses. This research employed Spearman correlation, Mann-Whitney test, and chi-square or Fisher's exact tests.
The average age upon diagnosis was 38 (SD ± 11.1) years, and the disease lasted for 7.5 (SD ± 5.3) years. Of the women, 46% had spells of infertility. Also, 42 women (64.6%) had TGAb antibodies and 59/65 (90.7%) had TPOAb antibodies. Comparison between the groups with and without TPOAb or TGAb revealed no variations in any of the examined variables. TPOAb concentration was strongly connected with thyroid volume and preterm deliveries, whereas TGAb concentration was correlated with age.
Overall, the findings of this study found that among women with HT, infertility was highly prevalent. This was greater than the whole population, but there was no indication that the concentration or existence of the autoantibodies TGAb and TPOAb had any bearing on it.
Source:
de Souza, R. S. X., Quintino-Moro, A., Engelbrecht Zantut-Wittmann, D., & Fernandes, A. (2024). Antithyroid Antibodies and Reproductive Parameters of Women with Hashimoto’s Thyroiditis. In Endocrine Research (pp. 1–8). Informa UK Limited. https://doi.org/10.1080/07435800.2024.2405147
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