Association of established thyroid peroxidase autoantibody (TPOAb) genetic variants with Hashimoto’s thyroiditis

Abstract. A 36 year old man with a diffuse goitre, signs of mild hypothyroidism, strikingly low levels of T4 (0.9 μg/dl) and T3 (24 ng/dl), elevated TSH (140 μU/ml) and elevated microsomal haemagglutination antibody (MCHA, 1:409 600), subsequently became non-goitrous and euthyroid with a decreased titre of antimicrosomal antibody without any medication. At the time of surgical biopsy, serum levels of T4 and T3 had risen to the normal range (4.6 μg/dl and 73 ng/dl, respectively), serum TSH had decreased to 30 μU/ml and the titre of MCHA to 1:25 600. Thyroid specimens showed Hashimoto's thyroiditis. The activity of thyroid peroxidase (TPO) was normal. The latest examination, 1 year and 3 months after initial evaluation, showed that the patient remained euthyroid with no goitre, that serum thyroid hormones were within the normal range (T4 7.7 μg/dl and T3 97 ng/dl), and that TSH was not detectable. The titre of MCHA decreased strikingly to 1:400.

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Relationship Between Thyroid Hormonal Status in Patients with a Hypothyroid Form of Hashimoto’s Thyroiditis and Iodine Concentrations in Drinking Water

Biological Trace Element Research ◽

10.1007/s12011-021-02640-2 ◽

2021 ◽

Author(s):

Olha Kasiyan ◽

Halyna Tkachenko ◽

Natalia Kurhaluk ◽

Svitlana Yurchenko ◽

Alek Manenko

Keyword(s):

Hashimoto’S Thyroiditis ◽

Iodine Concentration ◽

Iodine Intake ◽

Thyroid Stimulating Hormone ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Supply Network ◽

Thyroid Status ◽

Thyroglobulin Antibodies ◽

Regressive Analysis

AbstractThe current study aimed to identify correlative and regressive dependencies between the water iodine concentration and the levels of TSH (thyroid-stimulating hormone), thyroglobulin antibodies (TgAbs), and thyroid peroxidase (TPOAb) in the serum of 168 in patients (34 men and 134 women) with a hypothyroid form of Hashimoto’s thyroiditis who use water from the supply network and individual wells. Based on the water iodine concentration, low and moderate degrees of iodine endemia in the location of the patients were determined. In the groups of men and women using water from different water supply sources, there were direct correlations between the water iodine concentrations and the TgAbs and TPOAb titers as well as an inverse dependence between iodine and TSH levels. Multivariate regressive analysis indicated that TgAb and TSH in the group of women using water from a supply network and TPOAb titers in the group of women using well water were independent factors associated with water iodine concentrations. Statistically significant correlations and regressive dependencies between the water iodine concentrations and the biomarkers of the thyroid status of the patients indicate the risk of Hashimoto’s thyroiditis progression, especially among women with additional iodine intake.

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Vitamin D status in Hashimoto’s thyroiditis and its association with vitamin D receptor genetic variants

The Journal of Steroid Biochemistry and Molecular Biology ◽

10.1016/j.jsbmb.2021.105922 ◽

2021 ◽

pp. 105922

Author(s):

Hany William Z. Hanna ◽

Cristiano Rizzo ◽

Radwa Marawan Abdel Halim ◽

Hemmat Elewa El Haddad ◽

Randa Salam ◽

...

Keyword(s):

Vitamin D ◽

Vitamin D Receptor ◽

Genetic Variants ◽

Hashimoto’S Thyroiditis ◽

Hashimoto's Thyroiditis ◽

Vitamin D Status

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Salivary gland function in women with Hashimoto’s thyroiditis without xerostomia and the correlation with auto-thyroid antibodies

Nuklearmedizin ◽

10.1055/a-1204-9748 ◽

2020 ◽

Author(s):

Xiao-an Pang ◽

Zhi-xiao Wei ◽

Jun-hong Li ◽

Xiao-qi Pang

Keyword(s):

Salivary Gland ◽

Hashimoto’S Thyroiditis ◽

Thyroid Stimulating Hormone ◽

Hashimoto's Thyroiditis ◽

Control Group ◽

Thyroid Peroxidase ◽

Thyroid Autoantibody ◽

Submandibular Glands ◽

Quantitative Parameters ◽

Salivary Function

Abstract Background Hashimoto’s thyroiditis (HT) may cause salivary dysfunction in patients resulting in xerostomia, but little is known about changes in salivary function in patients with no obvious dry mouth symptoms. In this study we assessed salivary function in women with HT, who had not experienced xerostomia and, for the first time, evaluated the effects of thyroid auto-antibodies on this function. Methods Sixty consecutive subjects were included, comprising 32 women (mean age, 36 ± 12 years) diagnosed with HT accompanied by differentiated thyroid cancer (DTC) in the study group (HT group), along with a control group (DTC group) of 28 women (mean age, 40 ± 12 years) diagnosed with DTC only. Salivary gland scintigraphy was used to assess salivary function with the semi-quantitative parameters of maximum absorption ratio and maximum secretion ratio, the decrease of which indicate impaired salivary function. Moreover, the HT and DTC groups were divided into four subgroups (Anti– HT, Anti+ HT, Anti– DTC, and Anti+ DTC), based on the presence of anti-thyroid peroxidase antibody (TPOAb) and anti-thyroglobulin antibody (TgAb). Finally, salivary gland semi-quantitative parameters were correlated with levels of thyroid-stimulating hormone (TSH), TGAb, and TPOAb in the HT and DTC groups. Results None of the semi-quantitative parameters examined in parotid or submandibular glands differed significantly between the HT and DTC groups. However, the maximum secretion ratio for the parotid and submandibular glands were significantly different in the subgroup comparison (p < 0.05). Furthermore, the TgAb, TPOAb, and TSH values correlated significantly with salivary excretive function (p ≤ 0.05). Conclusion Women with HT without xerostomia may not have salivary functional impairment during hypothyroidism. Serum thyroid autoantibody and TSH levels may mainly influence salivary excretive function but not uptake function.

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Molecular Cloning of a Thyroid Peroxidase cDNA Fragment Encoding Epitopes Involved in Hashimoto’s Thyroiditis [HT]

Thyroid Autoimmunity ◽

10.1007/978-1-4613-0945-1_35 ◽

1987 ◽

pp. 283-284

Author(s):

C. Dinsart ◽

F. Libert ◽

J. Ruel ◽

M. Ludgate ◽

J. Pommier ◽

...

Keyword(s):

Molecular Cloning ◽

Hashimoto’S Thyroiditis ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Cdna Fragment

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Angioedema in a Patient with Autoimmune Thyroiditis – A Case Report

Acta Medica Bulgarica ◽

10.2478/amb-2020-0021 ◽

2020 ◽

Vol 47 (2) ◽

pp. 34-37

Author(s):

S. Dermendzhiev ◽

A. Dzhambov ◽

T. Dermendzhiev

Keyword(s):

Autoimmune Thyroiditis ◽

Hashimoto’S Thyroiditis ◽

Immunoglobulin E ◽

Thyroid Autoimmunity ◽

Hormonal Control ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Normal Range ◽

History Of ◽

One Year

AbstractWe present a case of a 29-year-old Bulgarian woman with autoimmune thyroiditis and recurrent angioedema. The patient presented with a one-year-long history of recurrent angioedema and Hashimoto’s thyroiditis. Physical examination showed oedema surrounded by erythema on the forearms, and erythematous, itchy plaques spreading over her face, neck, chest, abdomen, and extremities. Blood tests showed elevated total immunoglobulin E (IgE). The patient had been diagnosed with Hashimoto’s thyroiditis and hypothyroidism. She had been taking levothyroxine 50 μg/d, resulting in a good hormonal control; however, her anti-thyroid peroxidase (anti-TPO) antibodies were high. She was started on methylprednisolone and antihistamines. In three weeks, we observed a good therapeutic response to the treatment and the lesions remitted. IgE dropped within normal range. Levels of anti-TPO antibodies were persistently high. In conclusion, patients with angioedema should be tested for thyroid autoimmunity. Further delve into the pathogenesis of angioedema in them is warranted in order to explore the possibility of an underlying atopy in those not responding to the standard treatment with levothyroxine.

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Antibodies to Thyroid Peroxidase Arise Spontaneously with Age in NOD.H-2h4 Mice and Appear after Thyroglobulin Antibodies

Endocrine Reviews ◽

10.1210/edrv.31.4.9999 ◽

2010 ◽

Vol 31 (4) ◽

pp. 600-600

Author(s):

Chun-Rong Chen ◽

Sepehr Hamidi ◽

Helen Braley-Mullen ◽

Yuji Nagayama ◽

Catherine Bresee ◽

...

Keyword(s):

Hashimoto’S Thyroiditis ◽

Time Course ◽

Thyroid Autoimmunity ◽

Cross Reactivity ◽

Eukaryotic Cells ◽

Human Thyroid ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Thyroglobulin Antibodies ◽

Self Tolerance

Abstract Hashimoto’s thyroiditis, a common autoimmune disease, is associated with autoantibodies to thyroglobulin (Tg) and thyroid peroxidase (TPO). TPO, unlike abundant and easily purified Tg, is rarely investigated as an autoantigen in animals. We asked whether antibodies (Abs) develop to both TPO and Tg in thyroiditis in mice that is induced (C57BL/6 and DBA/1 strains) or arises spontaneously (NOD.H-2h4). Screening for TPOAbs was performed by flow cytometry using mouse TPO-expressing eukaryotic cells. Sera were also tested for binding to purified mouse Tg and human TPO. The antibody data were compared with the extent of thyroiditis. Immunization with mouse TPO adenovirus broke self-tolerance to this protein in C57BL/6 mice, but thyroiditis was minimal and TgAbs were absent. In DBA/1 mice with extensive granulomatous thyroiditis induced by Tg immunization, TPOAbs were virtually absent despite high levels of TgAbs. In contrast, antibodies to mouse TPO, with minimal cross-reactivity with human TPO, arose spontaneously in older (7–12 months) NOD.H-2h4 mice. Unexpectedly, TgAbs preceded TPOAbs, a time course paralleled in relatives of probands with juvenile Hashimoto’s thyroiditis. These findings demonstrate a novel aspect of murine and human thyroid autoimmunity, namely breaking B cell self-tolerance occurs first for Tg and subsequently for TPO.

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

Hormone and Metabolic Research ◽

10.1055/a-1178-5882 ◽

2020 ◽

Vol 52 (09) ◽

pp. 642-646

Author(s):

Yanjin Hu ◽

Zhi Yao ◽

Guang Wang

Keyword(s):

Endothelial Dysfunction ◽

Endothelial Function ◽

Hashimoto’S Thyroiditis ◽

Reactive Hyperemia ◽

Density Lipoprotein ◽

Hashimoto Thyroiditis ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Healthy Controls ◽

Negatively Associated

AbstractEndothelial 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.

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The Effect of Hypolipidemic Agents on Thyroid Autoimmunity in Women with Hashimoto’s Thyroiditis Treated with Levothyroxine and Selenomethionine

Experimental and Clinical Endocrinology & Diabetes ◽

10.1055/s-0043-120342 ◽

2017 ◽

Vol 126 (05) ◽

pp. 321-326 ◽

Cited By ~ 1

Author(s):

Robert Krysiak ◽

Witold Szkróbka ◽

Bogusław Okopień

Keyword(s):

Hashimoto’S Thyroiditis ◽

Plasma Lipids ◽

Thyroid Autoimmunity ◽

Hdl Cholesterol ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Free Triiodothyronine ◽

Hypolipidemic Agents ◽

Antibody Titers ◽

Group B

Abstract Background Levothyroxine and selenomethionine were found to reduce thyroid antibody titers in patients with Hashimoto’s thyroiditis. The same effect was produced by intensive statin therapy. The aim of the present study was to assess whether hypolipidemic agents modulate the impact of thyroid hormone supplementation and selenomethionine on thyroid autoimmunity. Methods The study included 62 women with Hashimoto's thyroiditis treated for at least 6 months with levothyroxine and selenomethionine. On the basis of plasma lipids, women were divided into three groups: women with isolated hypercholesterolemia (group A; n=20), women with isolated hypertriglyceridemia (group B; n=17), and women with normal plasma lipids (group C; n=25). Group A were then treated with atorvastatin (20 mg daily), while group B received micronized fenofibrate (200 mg daily). Serum titers of thyroid peroxidase and thyroglobulin antibodies, as well as serum levels of thyrotropin, free thyroxine and free triiodothyronine were measured at the beginning of the study and 6 months later. Results Fenofibrate decreased triglycerides and increased HDL cholesterol, while simvastatin decreased total and LDL cholesterol. Fenofibrate reduced titers of thyroid peroxidase and, to a lesser extent, thyroglobulin antibodies. Atorvastatin tended to increase thyroid peroxidase antibodies. No changes in thyrotropin, free thyroxine and free triiodothyronine were observed in any treatment group. Fenofibrate-induced changes in thyroid antibody titers correlated with baseline antibody titers, as well as with treatment-induced changes in HDL cholesterol and insulin sensitivity. Conclusions The obtained results indicate that only fibrates may potentiate the effect of selenomethionine and levothyroxine on thyroid autoimmunity in women.

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Serum Selenium Status and Its Interrelationship with Serum Biomarkers of Thyroid Function and Antioxidant Defense in Hashimoto’s Thyroiditis

Antioxidants ◽

10.3390/antiox9111070 ◽

2020 ◽

Vol 9 (11) ◽

pp. 1070

Author(s):

Rahim Rostami ◽

Sarmad Nourooz-Zadeh ◽

Afshin Mohammadi ◽

Hamid Reza Khalkhali ◽

Gordon Ferns ◽

...

Keyword(s):

Thyroid Function ◽

Hashimoto’S Thyroiditis ◽

Antioxidant Defense ◽

Thyroid Volume ◽

Hashimoto's Thyroiditis ◽

Thyroid Peroxidase ◽

Urinary Iodine Concentration ◽

Serum Selenium ◽

Se Deficiency ◽

Se Status

Selenium (Se) deficiency has been implicated in the pathogenesis of Hashimoto’s thyroiditis (HT), although the available evidence is limited. The present study aimed to explore the interrelationships between serum Se status with measures of thyroid function and antioxidant defense in new cases of HT patients with hypoechogenic thyroid. HT patients (n = 49) and matched controls (n = 50) were recruited. Selenium, thyroid hormone panel, thyroid volume (TVol), glutathione (GSH), glutathione peroxidase3 (GPx3) activity, urinary iodine concentration (UIC), and urinary creatinine (Cr) were assessed. HT patients exhibited lower Se levels compared to controls (p < 0.001) with the rates of Se-deficient (<0.85 µmol/L) participants being 58.8% and 34%, respectively. Se-deficient patients exhibited higher thyroid stimulating hormone (TSH), Thyroid volume (TVol), thyroglobulin, antibody-titers, GPx3 activity and UIC/Cr compared to Se-sufficient patients (all p < 0.001). In the Se-deficient patients, inverse correlations were seen between Se-levels with TSH, TVol, and Thyroid peroxidase antibody (TPO-Ab) (all p < 0.001). This study is the first to uncover that coexisting Se-deficiency and elevated iodine in HT may enhance autoimmune reactions and accelerate the deterioration of thyroid function through oxidative stress. Our study also highlights the importance of optimal Se status in this disease, thus providing a rationale for the execution of intervention trials for the evaluation of the clinical benefits of antioxidant-status improvement in HT.

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