scholarly journals Development and Application of a Novel Sensitive Immunometric Assay for Calcitonin in a Large Cohort of Patients with Medullary and Differentiated Thyroid Cancer, Thyroid Nodules, and Autoimmune Thyroid Diseases

2014 ◽  
Vol 3 (2) ◽  
pp. 117-124 ◽  
Author(s):  
Cléber P. Camacho ◽  
Susan C. Lindsey ◽  
Teresa S. Kasamatsu ◽  
Alberto L. Machado ◽  
João Roberto M. Martins ◽  
...  
2020 ◽  
Vol 11 ◽  
Author(s):  
Giovanni Docimo ◽  
Angelo Cangiano ◽  
Roberto Maria Romano ◽  
Marcello Filograna Pignatelli ◽  
Chiara Offi ◽  
...  

The human microbiota is an integral component in the maintenance of health and of the immune system. Microbiome-wide association studies have found numerous diseases associated to dysbiosis. Studies are needed to move beyond correlations and begin to address causation. Autoimmune thyroid diseases (ATD) are one of the most common organ-specific autoimmune disorders with an increasing prevalence, higher than 5% worldwide. Most frequent manifestations of ATD are Hashimoto’s thyroiditis and Graves’ disease. The exact etiology of ATD remains unknown. Until now it is not clear whether bacterial infections can trigger ATD or modulate the efficacy of treatment and prognosis. The aim of our review is to characterize the microbiota and in ATD and to evaluate the impact of dysbiosis on treatment and prognosis. Moreover, variation of gut microbiome has been associated with thyroid cancer and benign nodules. Here we will characterize the microbioma in benign thyroid nodules, and papillary thyroid cancer to evaluate their implications in the pathophysiology and progression.


1999 ◽  
pp. 563-569 ◽  
Author(s):  
V Estienne ◽  
C Duthoit ◽  
VD Costanzo ◽  
PJ Lejeune ◽  
M Rotondi ◽  
...  

OBJECTIVE: TGPO autoantibodies (aAbs) that bind simultaneously to thyroglobulin (Tg) and thyroperoxidase (TPO) are present in the serum of patients with autoimmune thyroid diseases (AITD) and have been found to differ from monospecific Tg and TPO aAbs. To obtain further insights on the prevalence defined as the rate of occurrence and significance of TGPO aAbs in a large population, we carried out a collaborative study involving 15 European teams. METHODS: Serum samples from 3122 patients with various thyroid and non-thyroid diseases and normal subjects were assayed using a novel TGPO aAb detection kit. This test was designed so that TGPO aAbs are trapped between the Tg-coated solid phase and the soluble TPO labeled with a radioiodinated monoclonal antibody. RESULTS: Only three out of the 220 normal subjects (prevalence of 1.4%) were found to have positive TGPO aAb levels, which were mainly observed in the patients with AITD: the group of patients suffering from Hashimoto's thyroiditis had a TGPO aAb prevalence of 40.5% (n=437 patients), those with Graves' disease, a prevalence of 34.6% (n=645) and those with post-partum thyroiditis, 16.0% (n=243). Among the non-AITD patients with positive TGPO aAb levels, the TGPO aAb prevalence ranged from 20.7% among those with thyroid cancer (n=246) to 0% among those with toxic thyroid nodules (n=47). Among the patients with non-thyroid diseases, the TGPO aAb prevalence ranged from 9.8% in the case of Biermer's pernicious anemia (n=78) to 0% in that of premature ovarian failure (n=44). It is worth noting that the groups showing the highest TGPO aAb prevalence also contained the patients with the highest TGPO aAb titers. Statistical comparisons between the TGPO aAb prevalences in the various groups showed that TGPO aAb could be used as a parameter to distinguish between the groups of Hashimoto's and Graves' patients and between the women with post-partum thyroiditis and the post-partum women with only Tg and/or TPO aAb established during early pregnancy. Unexpectedly, the correlations between TGPO aAbs and Tg and TPO aAbs were found to depend mainly on the assay kit used. CONCLUSION: High TGPO aAb titers are consistently associated with AITD but the reverse was not found to be true. TGPO aAbs are a potentially useful tool, however, for establishing Hashimoto's diagnosis, and would be worth testing in this respect with a view to using them for routine AITD investigations.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Priscila Carneiro Moreira Lima ◽  
Arnaldo Moura Neto ◽  
Marcos Antonio Tambascia ◽  
Denise Engelbrecht Zantut Wittmann

Objectives. Assess the prevalence of thyroid nodules and predictors of malignant origin in patients with autoimmune thyroid diseases. Patients and Methods. Retrospective study including 275 patients, 198 with Graves' disease and 77 with Hashimoto’s thyroiditis. Clinical and demographical data, ultrasonographical nodule characteristics, total thyroid volume and histological characteristics were recorded. Results. Graves’ disease: the prevalence of thyroid nodules and thyroid carcinoma were 27.78% and 5.05%, respectively. Older age (OR = 1.054; 95% CI = 1.029–1.080) and larger thyroid volumes (OR = 1.013; 95% CI = 1.003–1.022) increased the chance of nodules. Younger age (OR = 1.073; 95% CI = 1.020–1.128) and larger thyroid volume (OR = 1.018; 95% CI = 1.005–1.030) predicted thyroid carcinoma. Hashimoto’s thyroiditis: the prevalence of thyroid nodules and carcinomas were 50.7% and 7.8%, respectively. Nodules were predicted by thyroid volume (OR = 1.030; 95% CI = 1.001–1.062). We found higher number of nodules in patients with thyroid carcinoma than in those with benign nodules (3 versus 2; ). Patients with Hashimoto’s thyroiditis presented nodules more frequently than patients with Graves’ disease (50.65% versus 27.28%; ), while the prevalence of carcinoma was similar (). Conclusions. Larger goiter was associated with carcinoma in Graves’ disease and Hashimoto’s thyroiditis. Younger patients presented higher risk of papillary thyroid carcinoma in Graves’ disease. The prevalence of carcinoma was similar in both conditions.


2015 ◽  
Vol 167 (1) ◽  
pp. 199-201 ◽  
Author(s):  
Patricia Papendieck ◽  
Laura Gruñeiro-Papendieck ◽  
Marcela Venara ◽  
Oscar Acha ◽  
Hugo Cozzani ◽  
...  

2018 ◽  
Vol 5 ◽  
Author(s):  
Khalaf Kridin ◽  
Mogher Khamaisi ◽  
Doron Comaneshter ◽  
Erez Batat ◽  
Arnon D. Cohen

2005 ◽  
Vol 133 (Suppl. 1) ◽  
pp. 74-76 ◽  
Author(s):  
Jasmina Ciric ◽  
Biljana Beleslin-Nedeljkovic

Autoimmune thyroid diseases are frequently associated with differentiated thyroid carcinomas. The role of autoimmune phenomena in the origin and clinical course of coexisting papillary and follicular carcinomas is still controversial. In Graves? patients, the prevalence of palpable thyroid nodules is 15.8%, and by using ultrasonography, the prevalence increases to 33.6%. Since the malignancy rate of palpable thyroid nodules in Graves? patients is 16.9%, approximately threefold higher than in general population, it seems that a thyroid nodule diagnosed in Graves? patients is at higher risk for malignancy. In addition, radioiodine therapy for Graves? disease was found to be associated with increased incidence of thyroid cancer in some studies. These studies however, were not able to confirm the carcinogenic effect of radioiodine therapy since the late growth of occult carcinomas could not be excluded. The frequency of the association of Hashimoto?s thyroiditis and differentiated thyroid carcinomas is approximately 30%. The presence of coexistent Hashimoto?s thyroiditis does not affect the diagnostic evaluation and management of papillary thyroid cancer. The frequent presentation of differentiated thyroid carcinomas in Graves? disease and Hashimoto?s thyroiditis opens the possibility that some mutual pathogenethic mechanisms might be involved in the development of these diseases.


Thyroid ◽  
2021 ◽  
Author(s):  
Tania Pilli ◽  
Gilda Dalmazio ◽  
Brunetta Porcelli ◽  
Silvia Cantara ◽  
Antonella Tabucchi ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document