Congenital hypothyroidism in a Turkish family: the role of immunoglobulins blocking the trophic effects of TSH and maternal-foetal relationship

1986 ◽  
Vol 111 (1) ◽  
pp. 44-53 ◽  
Author(s):  
R. D. van der Gaag ◽  
H. Frisch ◽  
M. Weissel ◽  
G. Wick ◽  
H. A. Drexhage
Keyword(s):  
Congenital Hypothyroidism ◽  
Thyroid Autoimmunity ◽  
Thyroid Tissue ◽  
Mild Form ◽  
Juvenile Form ◽  
Turkish Family ◽  
Blocking Antibodies ◽  
Thyroid Microsomal Antibodies ◽  
Trophic Action

Abstract. A Turkish family with frequent intermarriages is described, in which two siblings were born with persistent forms of congenital hypothyroidism, in the elder child concomitant with absent radioactive thyroid imaging. The mother was clinically euthyroid throughout the period of observation, but showed in addition to thyroid microsomal antibodies, high levels of immunoglobulins blocking the trophic action of TSH. These maternal growth blocking antibodies were transiently present in the youngest of the siblings (from birth to 2 months of age). She had a relatively mild form of congenital hypothyroidism (T3: 33 μg/100 ml; T4: 3.9 μg/100 ml). The older sibling, with proven non-functioning thyroid tissue (negative thyroidscan, T4: 0.4 μg/100 ml) produced the growth-blocking immunoglobulins herself and may thus represent a juvenile form of thyroid autoimmunity with a very early onset. An aunt and uncle of the children, both hypothyroid since birth, were at the age of 19 and 18 years weakly positive for growth blocking immunoglobulins. This study indicates that familial forms of congenital hypothyroidism are probably complex and may be brought about by maternal to foetal passage of thyroid reactive autoantibodies, but also by the inheritance of a trait for thyroid autoimmunity. In some cases these two mechanisms might act in conjunction.

scholarly journals The role of CXCR5 and its ligand CXCL13 in the compartmentalization of lymphocytes in thyroids affected by autoimmune thyroid diseases

2004 ◽  
pp. 225-234 ◽  
Author(s):  
G Aust ◽  
D Sittig ◽  
L Becherer ◽  
U Anderegg ◽  
A Schutz ◽  
...  
Keyword(s):  
T Cells ◽  
Peripheral Blood ◽  
Thyroid Autoimmunity ◽  
Thyroid Tissue ◽  
Mrna Levels ◽  
Autoimmune Thyroid Diseases ◽  
Autoimmune Thyroid ◽  
Lymphocytic Infiltrates ◽  
Secondary Lymphoid Organs

OBJECTIVE: Graves' disease (GD) and Hashimoto's thyroiditis (HT) are characterized by lymphocytic infiltrates partly resembling secondary lymphoid follicles in the thyroid. CXCR5 and its ligand CXCL13 regulate compartmentalization of B- and T-cells in secondary lymphoid organs. The aim of the study was to elucidate the role of this chemokine receptor-ligand pair in thyroid autoimmunity. METHODS: Peripheral blood and thyroid-derived lymphocyte subpopulations were examined by flow cytometry for CXCR5. CXCR5 and CXCL13 cDNA were quantified in thyroid tissues by real-time RT-PCR. RESULTS: We found no differences between the percentages of peripheral blood CXCR5+ T- and B-cells in GD patients (n=10) and healthy controls (n=10). In GD patients, the number of memory CD4+ cells expressing CXCR5 which are functionally characterized as follicular B helper T-cells is higher in thyroid-derived (18+/-3%) compared with peripheral blood T-lymphocytes (8+/-2%). The highest CXCL13 mRNA levels were found in HT (n=2, 86.1+/-1.2 zmol (10(-21) mol) cDNA/PCR) followed by GD tissues (n=16, 9.6+/-3.5). Only low amounts were determined in thyroid autonomy (TA) (n=11) thyroid tissues, irrespective of whether the autonomous nodule (0.5+/-0.1) or the surrounding normal tissue (1.8+/-0.7) had been analyzed. The same differences were found for CXCR5 (HT: 179.1+/-6.8; GD: 17.4+/-10.6; TA(nodule): 0.8+/-0.5; TA(normal): 4.4+/-3.6). In GD, there is a correlation between CXCL13 and CXCR5 mRNA levels and the number of focal lymphocytic infiltrates and germinal centers as well as anti-thyroperoxidase but not anti-TSH receptor autoantibodies. CONCLUSIONS: CXCR5 and CXCL13 play an essential role in maintaining B- and T-cells in lymphocytic infiltrates and ectopic follicles in thyroid tissue from patients affected by autoimmunity.

The Th1/Th2 paradigm in thyroid autoimmunity: the role of CXCR6+ T-cells

2004 ◽  
Vol 112 (S 1) ◽  
Author(s):  
G Aust ◽  
M Kamprad ◽  
D Sittig ◽  
L Becherer ◽  
P Lamesch ◽  
...  
Keyword(s):  
T Cells ◽  
Thyroid Autoimmunity

Infants Diagnosed with Athyreosis on Scintigraphy May Have a Gland Present on Ultrasound and Have Transient Congenital Hypothyroidism

2021 ◽  
pp. 1-8
Author(s):  
Niamh McGrath ◽  
Colin Patrick Hawkes ◽  
Stephanie Ryan ◽  
Philip Mayne ◽  
Nuala Murphy
Keyword(s):  
Thyroid Gland ◽  
Congenital Hypothyroidism ◽  
Thyroid Tissue ◽  
Thyroid Stimulating Hormone ◽  
Thyroid Ultrasound ◽  
Free T4 ◽  
Median Serum ◽  
Thyroid Glands ◽  
Rule Out

Scintigraphy using technetium-99m (<sup>99m</sup>Tc) is the gold standard for imaging the thyroid gland in infants with congenital hypothyroidism (CHT) and is the most reliable method of diagnosing an ectopic thyroid gland. One of the limitations of scintigraphy is the possibility that no uptake is detected despite the presence of thyroid tissue, leading to the spurious diagnosis of athyreosis. Thyroid ultrasound is a useful adjunct to detect thyroid tissue in the absence of <sup>99m</sup>Tc uptake. <b><i>Aims:</i></b> We aimed to describe the incidence of sonographically detectable in situ thyroid glands in infants scintigraphically diagnosed with athyreosis using <sup>99m</sup>Tc and to describe the clinical characteristics and natural history in these infants. <b><i>Methods:</i></b> The newborn screening records of all infants diagnosed with CHT between 2007 and 2016 were reviewed. Those diagnosed with CHT and athyreosis confirmed on scintigraphy were invited to attend a thyroid ultrasound. <b><i>Results:</i></b> Of the 488 infants diagnosed with CHT during the study period, 18/73 (24.6%) infants with absent uptake on scintigraphy had thyroid tissue visualised on ultrasound (3 hypoplastic thyroid glands and 15 eutopic glands). The median serum thyroid-stimulating hormone (TSH) concentration at diagnosis was significantly lower than that in infants with confirmed athyreosis (no gland on ultrasound and no uptake on scintigraphy) (74 vs. 270 mU/L), and median free T4 concentration at diagnosis was higher (11.9 vs. 3.9 pmol/L). Six of 10 (60%) infants with no uptake on scintigraphy but a eutopic gland on ultrasound had transient CHT. <b><i>Conclusion:</i></b> Absent uptake on scintigraphy in infants with CHT does not rule out a eutopic gland, especially in infants with less elevated TSH concentrations. Clinically, adding thyroid ultrasound to the diagnostic evaluation of infants who have athyreosis on scintigraphy may avoid committing some infants with presumed athyreosis to lifelong levothyroxine treatment.

Role of the Specialized Pro-resolving Mediator Resolvin D1 in Hashimotoʼs Thyroiditis

2021 ◽  
Author(s):  
Jing Song ◽  
Rongxin Sun ◽  
Yuanyuan Zhang ◽  
Ying Fu ◽  
Dong Zhao
Keyword(s):  
Thyroid Autoimmunity ◽  
Thyroid Stimulating Hormone ◽  
Inflammatory Factors ◽  
Thyroid Peroxidase ◽  
Sensitivity Index ◽  
Resolvin D1 ◽  
Thyroid Peroxidase Antibody ◽  
Thyroglobulin Antibody ◽  
Inflammation Resolution

Abstract Objective Resolvins are produced by the catabolism of polyunsaturated fatty acids (PUFAs) and play vital roles in inflammation resolution. Resolvins have been associated with autoimmune disorders. This study aimed to measure the level of Resolvin D1 (RVD1) in the serum of Hashimoto's thyroiditis (HT) patients and healthy controls (HCs) and to further analyse its correlation with thyroid autoantibodies and inflammatory factors. Methods Sixty-three participants were recruited, namely, 30 untreated HT patients and 33 sex- and age-matched HCs. Serum RVD1 and inflammatory chemokine (MCP-1 and IP-10) levels were measured by ELISA according to the manufacturer’s protocol. Serum total T3 (TT3), TT4, free T3 (FT3), FT4, thyroglobulin antibody (TgAb), thyroid peroxidase antibody (TPOAb) and thyroid-stimulating hormone (TSH) levels were measured using an electrochemiluminescence immunoassay. Thyroid homeostasis parameters, including the thyroid secretory capacity (SPINA-GT), the total deiodinase activity (SPINA-GD), Jostel’s TSH index (TSHI) and the thyrotroph thyroid hormone sensitivity index (TTSI), were calculated. Results Serum RVD1 levels in HT patients (134.76, 85.35–201.36 pg/mL) were significantly lower than those in HCs (187.64, 131.01–326.85 pg/mL) (P=0.004). As the TPOAb level increased, the RVD1 level showed a decreasing trend (P for trend=0.002). Both multinomial and ordinal logistics analyses revealed that serum RVD1 levels were negatively correlated with TPOAb levels in the adjusted models. Moreover, RVD1 showed a negative correlation with the inflammatory chemokine IP-1 0 (r=–0.276, P=0.034), TSHI (r=–0.269, P=0.036) and TTSI (r=–0.277, P=0.031). Conclusions Thyroid autoimmunity may be associated with low levels of RVD1. Decreased RVD1 levels indicate impaired resolution of inflammation in HT patients.

scholarly journals Decreased Expression of GPER1 Gene and Protein in Goiter

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Raquel Weber ◽  
Ana Paula Santin Bertoni ◽  
Laura Walter Bessestil ◽  
Ilma Simoni Brum ◽  
Tania Weber Furlanetto
Keyword(s):  
Estrogen Receptor ◽  
Quantitative Polymerase Chain Reaction ◽  
Thyroid Tissue ◽  
Chain Reaction ◽  
Normal Thyroid ◽  
Protein Levels ◽  
Protein Expressions ◽  
Polymerase Chain ◽  
G Protein Coupled

Goiter is more common in women, suggesting that estrogen could be involved in its physiopathology. The presence of classical estrogen receptors (ERαand ERβ) has been described in thyroid tissue, suggesting a direct effect of estrogen on the gland. A nonclassic estrogen receptor, the G-protein-coupled estrogen receptor (GPER1), has been described recently in several tissues. However, in goiter, the presence of this receptor has not been studied yet. We investigated GPER1 gene and protein expressions in normal thyroid and goiter using reverse transcription quantitative polymerase chain reaction (RT-qPCR) and Western blot, respectively. In normal thyroid (n=16) and goiter (n=19), GPER1 gene was expressed in all samples, while GPER1 protein was expressed in all samples of normal thyroid (n=15) but in only 72% of goiter samples (n=13). When comparing GPER1 gene and protein levels in both conditions, gene expression and protein levels were higher in normal thyroid than in goiter, suggesting a role of this receptor in this condition. Further studies are needed to elucidate the role of GPER1 in normal thyroid and goiter.

scholarly journals A Pro-Tumorigenic Effect of Heparanase 2 (Hpa2) in Thyroid Carcinoma Involves Its Localization to the Nuclear Membrane

2021 ◽  
Vol 11 ◽  
Author(s):  
Itai Margulis ◽  
Inna Naroditsky ◽  
Miriam Gross-Cohen ◽  
Neta Ilan ◽  
Israel Vlodavsky ◽  
...  
Keyword(s):  
Thyroid Carcinoma ◽  
Lymph Nodes ◽  
Nuclear Membrane ◽  
Tumor Metastasis ◽  
Cellular Localization ◽  
Thyroid Tissue ◽  
Clinicopathological Parameters ◽  
Regional Lymph Nodes ◽  
Normal Thyroid

Activity of the endo-beta-glucuronidase heparanase, capable of cleaving heparan sulfate (HS), is most often elevated in many types of tumors, associating with increased tumor metastasis and decreased patients’ survival. Heparanase is therefore considered to be a valid drug target, and heparanase inhibitors are being evaluated clinically in cancer patients. Heparanase 2 (Hpa2) is a close homolog of heparanase that gained very little attention, likely because it lacks HS-degrading activity typical of heparanase. The role of Hpa2 in cancer was not examined in detail. In head and neck cancer, high levels of Hpa2 are associated with decreased tumor cell dissemination to regional lymph nodes and prolonged patients’ survival, suggesting that Hpa2 functions to attenuate tumor growth. Here, we examined the role of Hpa2 in normal thyroid tissue and in benign thyroid tumor, non-metastatic, and metastatic papillary thyroid carcinoma (PTC) utilizing immunostaining in correlation with clinicopathological parameters. Interestingly, we found that Hpa2 staining intensity does not significantly change in the transition from normal thyroid gland to benign, non-metastatic, or metastatic thyroid carcinoma. Remarkably, we observed that in some biopsies, Hpa2 is accumulating on the membrane (envelop) of the nucleus and termed this cellular localization NM (nuclear membrane). Notably, NM localization of Hpa2 occurred primarily in metastatic PTC and was associated with an increased number of positive (metastatic) lymph nodes collected at surgery. These results describe for the first time unrecognized localization of Hpa2 to the nuclear membrane, implying that in PTC, Hpa2 functions to promote tumor metastasis.

scholarly journals Role of Tc-99m pertechnetate thyroid scintigraphy in evaluation of lingual and midline neck swellings

2018 ◽  
Vol 6 (3) ◽  
pp. 842
Author(s):  
Bhairavi Mohit Bhatt ◽  
Shwetal Uday Pawar ◽  
Anuja Anand ◽  
Mangala Kedar Ghorpade ◽  
Suruchi Suresh Shetye
Keyword(s):  
Thyroid Tissue ◽  
Thyroglossal Duct Cyst ◽  
Neck Swelling ◽  
Thyroid Scintigraphy ◽  
Thyroglossal Cyst ◽  
Duct Cyst ◽  
Thyroglossal Duct ◽  
Technetium 99M ◽  
Ectopic Tissue

Background: The ectopic thyroid tissue in thyroglossal cyst or suprahyoid swelling is one of most important differential to be diagnosed. The purpose of this study was to find out role of Technetium-99m Pertechnetate Thyroid Scintigraphy (TS) to detect functioning thyroid tissue in ectopic locations presenting as midline neck swelling.Methods: A retrospective observational study was done where 26 subjects presenting with midline neck swelling were included. These subjects were injected with 1-5MBq/kg of Technetium-99m Pertechnetate to perform the TS. The uptake of tracer in the midline neck swelling and in other ectopic location was assessed. The comparison with Ultrasound (USG) was also done.Results: 12 (46.15%) subjects presented with infra hyoid swelling and rest 14 (53.85%) presented with supra hyoid and submental swelling. 33.3% subjects presenting with thyroglossal duct cyst showed functioning thyroid tissue. Also 4 subjects showed dual functioning ectopic tissue. USG an TS showed concordant results for detecting thyroid tissue in ectopic location (p=0.68). However, TS performed better to detect ectopically located thyroid tissue (p=0.0086).Conclusions: USG and TS showed similar results to detect thyroid tissue in normal location. However, TS is better to detect topically located thyroid tissue. TS adds information of functioning thyroid tissue during workup of midline neck swelling. 

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