Endocrine Abstracts

Aim: In this study we aimed to evaluate the oxidative stress via evaluating changes in dynamic thiol-disulphide status in euthyroid patients with Hashimoto’s thyroiditis (HT).Methods: Fifty euthyroid patients with HT and 50 healthy individuals were enrolled in this study. Thyroid function tests (free triiodothyronine (fT3), free thyroxine (fT4), thyrotropin (TSH)), acute phase reactants (C-reactive protein (CRP), high sensitive CRP (hs-CRP)) and thi...

Metabolic syndrome is an important health problem that has been shown to be associated with cardiovascular disease and mortality. Recent studies have shown the importance of inflammation in visceral fat tissue. Macrophage apoptosis inhibitor (AIM) and monocyte chemotactic protein (MCP-1) are molecules that cause migrating to visceral fat tissue of M1 macrophages that initiate adipocyte inflammation. The aim of this study is to understand the role of these molecules in the path...

The progression of thyroid cancer is dependent on cell motility, a highly complex process that involves the co-ordination of multiple signalling pathways, cell adhesion, and actin dynamics. The proto-oncogene pituitary tumor-transforming gene (PTTG)-binding factor (PBF/PTTG1IP) potently stimulates thyroid cancer cell migration and invasion via PBF phosphorylation by Src kinase at residue Y174. Recent phosphoproteomic and RNA-Seq analyses revealed that upregulation of PBF in Nt...

Glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) are hormones secreted from enteroendocrine L cells following a meal that play a key role in regulating insulin secretion and glucose metabolism. Enteroendocrine L cells express calcium-sensing receptors (CaSRs), which serve as a physiological nutrient sensor for the release of hormones from the gastrointestinal tract. While calcium is the primary ligand for CaSR, its activity can also be controlled by amino acids and polyami...

The proto-oncogene pituitary tumor transforming gene binding factor (PTTG1IP/PBF) is overexpressed in multiple tumours and associated with tumour progression. One of the tumourigenic processes that PBF can mediate is cell motility. PBF can induce cell invasion in both thyroid and breast cancer cell lines. However, in contrast to wild-type (WT) PBF, the Y174A PBF mutant was not able to induce the invasiveness of thyroid or breast cancer cells. The Y174 residue is highly phospho...

Thyroid tumor progression is dependent on cell motility, a highly complex process that involves the co-ordination of cell adhesion, actin dynamics and signal transduction. The proto-oncogene pituitary tumor-transforming gene (PTTG)-binding factor (PBF/PTTG1IP) is a transmembrane glycoprotein that is overexpressed in thyroid cancer and associated with a poorer prognosis. PBF significantly promotes thyroid cancer cell migration and invasion through phosphorylation at PBF-Y174 by...

Introduction: New drug approaches are urgently required to improve radioiodide (RAI) uptake for efficient ablation of thyroid cancer cells in RAI-refractory disease. Employing high-throughput screening of FDA-approved compounds we recently identified drugs capable of robust induction of sodium iodide symporter (NIS) activity to promote RAI uptake1. In particular, a leading drug candidate – the well-established anti-alcoholism drug disulfiram (DSF) – had no...

Background: Papillary thyroid microcarcinoma (PTMC) is a papillary thyroid cancer (PTC) type with a maximum diameter of ≤ 10 mm. Generally, PTMCs have good prognosis and low mortality risk. However, there are cases of PTMCs showing more biologically aggressive characteristics, such as lymph node (LN) involvement and distant metastasis.Objectives: Reveal the factors affecting the prognosis and aggressiveness of PTMCs.Methods: ...

Introduction: Papillary thyroid microcarcinomas (PTMC) are usually detected incidentally. They occur as a result of histological/microscopic examination of a thyroid removed especially for nodular goiter. Generally, the prognosis is good. However, it has been reported that lymph node (LN) metastasis is more common especially in PTMCs with tumor size > 5mm. In this study, it was aimed to show the effect of tumor size on prognosis by comparing clinicopathological data in pat...

Aim: To determine whether there is any factor that can predict sufficient results in second thyroid fine-needle aspiration biopsy (FNAB) after first nondiagnostic cytological result.Materials and method: Nodules with non-diagnostic result after first FNAB were included and separated into two groups as sufficient (Group-1) and insufficient (Group-2) second FNAB. Results: Second FNAB was performed on 643 nodules of 443 patients with ...