Endocrine Abstracts

Objectives: Well differentiated thyroid cancers (WDTC) are generally sensitive to first line treatments or eventually to tyrosine kinase inhibitors (TKIs). However, a part of WDTC together with poorly differentiated (PDTC) and anaplastic (ATC) thyroid cancers are particularly aggressive and refractory to all treatments, TKIs included. Since TKIs resistance is proven to be related with the presence of TP53 mutations in other tumours, and TP53 alterations are f...

Context: A variety of thyroid disorders have been documented in COVID-19 patients, including non-thyroidal illness syndrome (NTIS), subacute thyroiditis (SAT) and thyrotoxicosis.Objectives: To investigate the relationship between thyroid dysfunctions observed during hospitalisation and COVID-19-related morbidity and mortality.Study design and setting: Prospective cohort study on patients admitted in a tertiary hospital for COVID-19...

The diagnosis of indeterminate thyroid nodules is a challenge in cytopathology practice. To increase the diagnostic accuracy in these cases, we previously set up a ’thyroid risk score’ (TRS), derived from the sum of the scores assigned to: cytology + EU-TIRADS classification + nodule size + molecular profile. In the present study we prospectively validated the reliability of the TRS in the clinical practice. From 2018 to 2022 we evaluated 354 indeterminate nodules (2...

Objectives: Recent evidence suggest that environmental pollution may be involved in the worldwide increase of thyroid cancer (TC) incidence occurred over the last few decades. Indeed, some environmental pollutants, namely endocrine disruptive chemicals (EDCs), have been linked to endocrine system disruption, including thyroid dysfunction, and increased risk of TC. Several EDCs are known to be Persistent Organic Pollutants (POPs) due to their long half-life in the environment, ...

FAM83B has been recently identified as an oncogene involved in the development and progression of several malignancies, but its role in thyroid cancers (TC) is still unclear. In the present study, we examined the expression of FAM83B and its possible involvement in cell migration and differentiation, in neoplastic and normal thyroid tissues and in TC human cell lines. We found that FAM83B expression in TC varies according to tumor histotype, being si...

Introduction: Cells with stem-like properties have been reported in benign and malignant thyroid diseases, and can be propagated by culturing them as non-adherent spheres.Design: Aim of the present study was to widely characterize the stem-like cells in tumor and normal thyroid tissues and in the corresponding in vitro-cultured thyrospheres, and to investigate in vivo the proangiogenic potential of thyrospheres in a zebrafish model....

It is known that high levels of TSH are associated with higher miscarriage risk, though the precise TSH cut-offs are debated. Aim of the present study was to evaluate if pre-conceptional TSH levels associate with increased risk of early miscarriage in a large series of infertile women submitted to IVF and to determine the threshold of TSH associated with the highest prevalence of pregnancy loss. We retrospectively studied 1484 infertile women (mean±age 36.7±4.1 years...

TERT promoter mutations (chr5: 1 295 228C>T e chr5: 1 295 250C>T) were recently described in thyroid tumors, with a prevalence ranging 8–25% in papillary thyroid cancer (PTC). We and others reported that these mutations strongly associate with a poor outcome in differentiated thyroid cancers. Aim of the present study was to further investigate the prognostic role of both TERT promoter (TERTMUT) and BRAF<...

Thyroid cancer is highly prevalent in women aged 15–44 years, suggesting that in females the fertile age could be regarded as a risk factor. Consistently, in the last decades epidemiological and experimental findings indicated a possible role of oestrogens in the development and progression of differentiated thyroid tumours. We studied the expression of oestrogen receptor α (ER α) and Progesteron receptor (PR) in 182 female and male patients with papillary thyro...

Background: Calcitonin (CT) is the most sensitive marker for MTC diagnosis. By the way, many pre-analytical, analytical and post-analytical pitfalls worsen its accuracy. Procalcitonin (proCT), a CT precursor, has been suggested as a valuable complementary test in MTC diagnosis, given its stability and the reproducibility between different assay kits.Material and Methods: basal CT (bCT) and proCT (bproCT) and stimulated CT (bCT) and proCT (sproCT) (2&#821...