Endocrine Abstracts

Introduction: Neuroendocrine tumors of GI tract are a heterogeneous group of rare neoplasms that secrete peptides and amines. These tumors are highly vascular and their vascularity reflects increased tumour related angiogenesis. Adenosine, a major regulator of angiogenesis, is released by enhanced degradation of ATP, during cellular stress, damage and hypoxia.Material and methods: The expression of adenosine receptors (AR) was investigated in two human n...

Introduction: Novel molecular analytes are needed in small bowel neuroendocrine tumours (SBNETs) to better determine disease aggressiveness and predict treatment response.Aim of the study: To profile the global miRNome of SBNETs, and identify microRNAs (miRNAs) involved in tumour progression for use as potential biomarkers.Material and methods: Two independent miRNA profiling experiments were performed (n=90), including pr...

Background: Age-associated double negative (DN) B memory cells lacking surface expression of CD27 and IgD have been associated with proinflammatory characteristics, higher disease activity in autoimmune diseases and disease-specific autoantibodies. We studied the distribution of DN B cells in Polycystic Ovary Syndrome (PCOS), their surface markers and cytokine production.Methods: CD19+ cell subpopulations on the basis of IgD and CD27 expression were phen...

Recently a new procedure for measuring serum TSH receptor (TSHR) autoantibody (TRAb) was reported in which the autoantibodies inhibit binding of a human monoclonal thyroid stimulating antibody M22 (labeled with biotin) to TSHR-coated ELISA plate wells. This assay was termed 3rd generation TRAb assay. The aim of the present study was to clinically evaluate the TRAb 3rd generation assay in comparison with the 2nd generation TRAb assay (TRAb-2nd) based on the recombinant human TS...

Neuroendocrine tumors (NETs) of GI tract are a heterogeneous group of neoplasms that secrete peptides and amines. Small bowel NETs originate from enterochromaffin (EC) cells and secrete chromogranin A (CgA) and serotonin (5-HT). NETs are highly vascular, a reflection of increased tumour related angiogenesis. Adenosine, the major regulator of angiogenesis, is released by enhanced degradation of ATP, during cellular stress, damage and hypoxia.Aims: Aims of...