Type 1 and type 2 iodothyronine deiodinases in the thyroid gland of patients with huge goitrous Hashimoto’s thyroiditis

Endocrine ◽  
2019 ◽  
Vol 64 (3) ◽  
pp. 584-590 ◽  
Author(s):  
Azusa Harada ◽  
Emiko Nomura ◽  
Kumiko Nishimura ◽  
Mitsuru Ito ◽  
Hiroshi Yoshida ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Hashimoto’S Thyroiditis ◽  
Hashimoto's Thyroiditis ◽  
Iodothyronine Deiodinases

scholarly journals Type 1 and type 2 iodothyronine deiodinases in the thyroid gland of patients with 3,5,3′-triiodothyronine-predominant Graves' disease

2011 ◽  
Vol 164 (1) ◽  
pp. 95-100 ◽  
Author(s):  
Mitsuru Ito ◽  
Nagaoki Toyoda ◽  
Emiko Nomura ◽  
Yuuki Takamura ◽  
Nobuyuki Amino ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Mrna Level ◽  
Antithyroid Drug ◽  
High Serum ◽  
Graves Disease ◽  
Iodothyronine Deiodinase ◽  
Iodothyronine Deiodinases ◽  
Antithyroid Drug Therapy

Objective3,5,3′-triiodothyronine-predominant Graves' disease (T3-P-GD) is characterized by a persistently high serum T3 level and normal or even lower serum thyroxine (T4) level during antithyroid drug therapy. The source of this high serum T3 level has not been clarified. Our objective was to evaluate the contribution of type 1 and type 2 iodothyronine deiodinase (D1 (or DIO1) and D2 (or DIO2) respectively) in the thyroid gland to the high serum T3 level in T3-P-GD.MethodsWe measured the activity and mRNA level of both D1 and D2 in the thyroid tissues of patients with T3-P-GD (n=13) and common-type GD (CT-GD) (n=18) who had been treated with methimazole up until thyroidectomy.ResultsThyroidal D1 activity in patients with T3-P-GD (492.7±201.3 pmol/mg prot per h) was significantly higher (P<0.05) than that in patients with CT-GD (320.7±151.9 pmol/mg prot per h). On the other hand, thyroidal D2 activity in patients with T3-P-GD (823.9±596.4 fmol/mg prot per h) was markedly higher (P<0.005) than that in patients with CT-GD (194.8±131.6 fmol/mg prot per h). There was a significant correlation between the thyroidal D1 activity in patients with T3-P-GD and CT-GD and the serum FT3-to-FT4 ratio (r=0.370, P<0.05). Moreover, there was a strong correlation between the thyroidal D2 activity in those patients and the serum FT3-to-FT4 ratio (r=0.676, P<0.001).ConclusionsOur results suggest that the increment of thyroidal deiodinase activity, namely D1 and especially D2 activities, may be responsible for the higher serum FT3-to-FT4 ratio in T3-P-GD.

Diffuse Large B-cell Lymphoma of thyroid gland in an Adolescent girl with Hashimoto’s thyroiditis

2020 ◽  
Author(s):  
Mara Xatzipsalti ◽  
Evangelos Bourousis ◽  
Maria Nikita ◽  
Myrsini Gkeli ◽  
Evgenia Magkou ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
B Cell ◽  
Hashimoto’S Thyroiditis ◽  
Adolescent Girl ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Hashimoto's Thyroiditis ◽  
Large B Cell Lymphoma ◽  
Large B Cell

scholarly journals Papillary Thyroid Carcinoma Arising in Children and Adolescent Hashimoto’s Thyroiditis: Ultrasonographic and Pathologic Findings

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Sun Hye Jeong ◽  
Hyun Sook Hong ◽  
Eun Hye Lee ◽  
Jeong Ja Kwak
Keyword(s):  
Lymph Node ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Gland ◽  
Thyroid Carcinoma ◽  
Lymph Node Metastases ◽  
Hashimoto’S Thyroiditis ◽  
Extrathyroidal Extension ◽  
Hashimoto's Thyroiditis ◽  
Papillary Thyroid ◽  
Node Metastases

Objectives. We compared the ultrasonography and pathology features of papillary thyroid carcinoma (PTC) in pediatric and adolescents with Hashimoto’s thyroiditis (HT) with those of non-HT patients.Materials and Methods. Eleven patients who were surgically confirmed to have pediatric or adolescent PTC from 2006 to 2014 were included in this study. We retrospectively analyzed the preoperative ultrasonography and pathology features of PTC arising in HT and non-HT patients.Results. On ultrasonography, thyroid gland was lobulated and enlarged, with many scattered microcalcifications in four of five HT patients. Four of six non-HT patients had suspicious masses with calcifications. The diffuse sclerosing variant of PTC (DSVPTC) was found in three of five HT patients, but none in non-HT patients. Macroscopic or microscopic extrathyroidal extension was evident in all of the HT patients and four of the non-HT patients. Neck lymph node metastases were in all HT patients and five of non-HT patients.Conclusions. Three of five PTCs in pediatric and adolescent HT patients were DSVPTC, whereas all PTCs of the non-HT patients were classic type. On ultrasonography, thyroid gland was diffusely enlarged with scattered microcalcifications in four of five HT patients. All five HT cases had aggressive disease, including extrathyroidal extension and cervical lymph node metastases.

scholarly journals Sex-specific association of PTPN22 1858T with type 1 diabetes but not with Hashimoto’s thyroiditis or Addison’s disease in the German population

2005 ◽  
Vol 153 (6) ◽  
pp. 895-899 ◽  
Author(s):  
Heinrich Kahles ◽  
Elizabeth Ramos-Lopez ◽  
Britta Lange ◽  
Oliver Zwermann ◽  
Martin Reincke ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 1 Diabetes ◽  
Type 1 Diabetes Mellitus ◽  
Hashimoto’S Thyroiditis ◽  
Addison’S Disease ◽  
Hashimoto's Thyroiditis ◽  
Addison's Disease ◽  
Healthy Controls ◽  
Significant Difference

Background: Endocrine autoimmune disorders share genetic susceptibility loci, causing a disordered T-cell activation and homeostasis (HLA class II genes, CTLA-4). Recent studies showed a genetic variation within the PTPN22 gene to be an additional risk factor. Materials and Methods: Patients with type 1 diabetes (n = 220), Hashimoto’s thyroiditis (n = 94), Addison’s disease (n = 121) and healthy controls (n = 239) were genotyped for the gene polymorphism PTPN22 1858 C/T. Results: Our study confirms a significant association between allelic variation of the PTPN22 1858 C/T polymorphism and type 1 diabetes mellitus (T1D). 1858T was observed more frequently in T1D patients (19.3% vs 11.3%, P = 0.0009; odds ratio for allele T = 1.88, 95% confidence interval [1.3–2.7]). Furthermore, we found a strong association in female patients with T1D (P = 0.0003), whereas there was no significant difference between male patients with type 1 diabetes and male controls. No significant difference was observed between the distribution of PTPN22 C/T in patients with Hashimoto’s thyroiditis or Addison’s disease and healthy controls. Conclusion: The PTPN22 polymorphism 1858 C/T may be involved in the pathogenesis of type 1 diabetes mellitus by a sex-specific mechanism that contributes to susceptibility in females.

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