Endocrine Abstracts

Glucagon-like peptide-1 receptor (GLP-1R) agonists are effective treatments for type 2 diabetes and obesity. We recently described ‘biased’ peptide GLP-1R agonists modelled on exendin-4 which uncouple the pronounced endocytosis that usually accompanies GLP-1R activation, leading to prolongation of intracellular signalling responses. Here, we show that the metabolic consequences of biased GLP-1R activation in vivo are dominated by improvements in blood glucos...

Objective: The thyroid fine needle aspiration biopsy (FNAB) may bring inconclusive cytological results of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) or follicular neoplasm/suspicious for follicular neoplasm (FN/SFN). The objective of the study was to describe the genetic landscape of indeterminate thyroid nodules to better understand this phenomenon and identify genetic markers potentially differentiating benign and malignant ...

Introduction: Germline mutations of RET oncogene result in development of multiple endocrine neoplasia type 2 (MEN 2). There is a strong correlation between type of the RET sequence changes and the aggressiveness of main syndrome feature, medullary thyroid carcinoma (MTC), and the incidence of remaining manifestations, mainly pheochromocytoma (PHEO). For many of the RET germline mutations, the clinical risk have been precisely defined, but there are ...

The role of adjuvant external beam radiotherapy (EBRT) in differenciated thyroid cancer (DTC) is controversial. It remains unknown whether EBRT in the neck following conventional treatment might improve progression-free survival (PFS) and overall survival (OS).Objective: To assess EBRT outcomes in patients with locally advanced DTC in terms of local disease progression, PFS and OS.Material and Methods: A multicentric retrospective ...

Background: Pituitary stalk lesions (PSL) are various changes located in the pituitary infundibulum. The underlying pathology and exact diagnosis are difficult to establish due to their difficult anatomical locus.Aim: To present the etiological spectrum of pituitary stalk lesions and their clinical and hormonal characteristics on the basis of long term observation in the pediatric/adult endocrinology departments of our university.M...

Introduction: The aim of the present study was to compare follicular thyroid adenoma (FTA) and follicular thyroid carcinoma (FTC) using the wide oncological molecular panel and identify differences in mutational status which may aid in the preoperative differentiation between these two related thyroidal pathologies, as well as in an understanding their pathways of origin.Material and methods: We analyzed formalin-fixed paraffin-embedded (FFPE) samples ac...

Background/Aim: Neuroendocrine tumors (NETs) are rare tumors arising from neuroendocrine cells throughout the body. Positron Emission Tomography (PET) scanning with 6-[18F]fluor-L-3,4-dihydroxyphenylalanine (18F-FDOPA) has been shown to be a valuable technique for the imaging of NETs. While the sensitivity has been assessed numerously, studies systematically describing false positive results, other than physiological variants, are lacking. Our aim was to systematica...

Introduction: Epigenetic is acquiring great importance in complex diseases, providing mechanisms whereby environmental factors can influence complex diseases such as obesity and type 2 diabetes. Experimental animal and human studies have revealed the association between SCD1 and obesity and insulin resistance. The aim of this study was to evaluate whether metabolic changes after intervention are associated with DNA methylation pattern and if these changes are related to weigh ...

As the nation gets fatter, the incidence of diabetes is also rising. The brain is now emerging as a critical mediator of blood sugar control, re-directing focus away from the traditional pancreas-centred model. The enzyme glucokinase (GK) acts as a glucose sensor in many tissues including glucose-sensitive neurones within the hypothalamic arcuate nucleus. However, the role of GK here is unclear. We investigated the role of arcuate GK in glucose homeostasis in both healthy and ...

Background: FGF21 is a critical metabolic regulator with beneficial effects on lipid and glucose metabolism. FGF21 is produced primarily by the liver and stimulates fatty acids oxidation, which prevents hepatic triglycerides accumulation and nonalcoholic fatty liver disease (NALFD). FGF21also increases insulin sensitivity and glucose uptake in adipose tissue. Paradoxically FGF21 is elevated in insulin resistance states e.g. NALFD, obesity and type 2 diabetes. It is not determi...