The Relationship Between the Impairment of Endothelial Function and Thyroid Antibodies in Hashimoto’s Thyroiditis Patients with Euthyroidism

Abstract

Endothelial dysfunction is the important early step in the development of atherosclerosis. Hypothyroidism caused by Hashimoto’s thyroiditis and other thyroid disease is one of the risk factors of endothelial dysfunction. The present study tried to investigate the endothelial function and its associated factors in Hashimoto thyroiditis with euthyroidism. A total of 95 newly diagnosed Hashimoto’s thyroiditis patients with euthyroidism and 45 healthy controls were studied. Hashimoto’s patients were divided into 3 subgroups namely, single thyroglobulin antibody (TGAb) positive subgroup, single thyroid peroxidase antibody (TPOAb) positive subgroup, and both TGAb and TPOAb positive subgroup. Endothelial function was tested by the reactive hyperemia index (RHI). Hashimoto’s thyroiditis patients had lower RHI than healthy controls (1.73±0.42 vs 1.96±0.51, p<0.05). Hashimoto’s thyroiditis with single TGAb positive patients had higher RHI than single TPOAb positive (1.98±0.57 vs. 1.69±0.33, p<0.05) and TGAB + TPOAb positive patients (1.98±0.57 vs. 1.68±0.42, p<0.05). RHI were negatively associated with total cholesterol (TC, r=−0.215, p<0.05), low density lipoprotein cholesterol (LDL-C, r=−0.268, p<0.05), triglyceride (TG, r=−0.192, p<0.05), and TPOAb (r=−0.288, p<0.05). In the regression analysis, LDL-C (β=−0.146, p<0.05), TG (β=−0.034, p<0.05) and TPOAb (β=−0.001, p<0.05) were independently associated with RHI. Hashimoto’s patients had poor endothelial function. TPOAb levels were negatively associated with endothelial function.

Key words

Hashimoto’s thyroiditis - endothelial dysfunction - thyroid peroxidase antibody

Publikationsverlauf

Eingereicht: 08. Januar 2020

Angenommen: 07. Mai 2020

Artikel online veröffentlicht:
15. Juni 2020

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