Endocrine Abstracts

Objective: Improved molecular testing for common somatic mutations and the identification of mRNA and microRNA expression classifiers are promising approaches for the diagnosis of thyroid nodules. However, there is a need to improve the diagnostic accuracy of such tests in identifying thyroid cancer. Recent findings have revealed a crucial role of lncRNAs in gene modulation. Thus, we aimed to evaluate the diagnostic value of selected lncRNAs from The Atlas of Noncoding RNAs in...

Background and aims: The efficacy and safety of dapagliflozin as add-on therapy in patients with type 2 diabetes mellitus (T2DM) and inadequate glycemic control with evogliptin and metformin combinations was investigated.Materials and methods: Patients with HbA1c of 7.0% to 10.5% receiving evogliptin 5mg and metformin ≥1000 mg were randomized to receive dapagliflozin 10 mg/day (n=99) or placebo (n=99) for 24 weeks. The primary end...

Objectives: The activating mutation (L206R) in PRKACA has been reported in more than 30–50% of cases with cortisol-producing adenomas (CPAs). We aimed to compare the clinical characteristics and gene expression profiling between PRKACA L206R mutant and wild type CPAs.Methods: We included 57 subjects with CPAs who underwent adrenalectomy at Seoul National University Hospital. Sanger sequencing for PRKACA w...

CDC73 (also known as HRPT2) encodes parafibromin and is known to be the causative gene of hyperparathyroidism-jaw tumor (HPT-JT) syndrome. There is no known ubiquitination of parafibromin, and the deubiquitinating enzyme (DUB) for parafibromin has not been identified to date. Full-length DUB cDNAs encoding 58 family members of ubiquitin specific proteases (USPs) were subcloned. The DUB cDNA was used to identify parafibromin interacting by yeast two-hybrid screening. W...

Pyruvate dehydrogenase kinase 4 (PDK4) activation is associated with metabolic diseases including hyperglycemia, insulin resistance, allergies, and cancer. We report here a new series of allosteric PDK4 inhibitor modified from hit anthraquinone. A novel PDK4 inhibitor, namely compound 8c, improved glucose tolerance in diet-induced obese mice. PDH activity in muscle and liver was enhance d by compound 8c treatment. Given the importance of PDK4 in immune cells including mast cel...

In the human adrenal gland, serotonin (5-HT), released by subcapsular mast cells stimulates corticosteroid secretion through activation of type 4 serotonin receptors (5-HT4R) positively coupled to cAMP/proteine kinase A (PKA) signaling pathway and calcium influx. The 5-HT4R is principally expressed in zona glomerulosa cells explaining why 5-HT strongly stimulates aldosterone production but only exerts a modest stimulatory action on cortisol. Interestingly, in primary pigmented...

In human adrenals, serotonin (5-HT), released by subcapsular mast cells, increases aldosterone secretion through activation of type 4 serotonin receptors (5-HT4R) but only exerts a modest control on cortisol production. Interestingly, illicit synthesis of 5-HT in adrenocortical cells as well as overexpression of the 5-HT4R and ectopic expression of the type 7 receptor (5-HT7R) have been observed in bilateral macronodular adrenal hyperplasia res...

Adiponectin has been thought to exert important influences in energy homeostasis and insulin signalling pathway. Some obese individuals showed paradoxical hyperadiponectine-mia (HA), however, the effect of HA on bone metabolism has not been fully clarified.This study aimed to evaluate bone strength and metabolic parameters according to the presence of HA and obesity in Korean adults. A total of 9,172 adults (59.4% women) aged 40–70 years assessed in...

Background: Associations between obesity and adipomyokines, inflammatory marker, and level of physical fitness have not been well evaluated in severe obesity in children and adolescents.Method: Data on leptin, irisin, FGF21, hsCRP, glucose, insulin, physical fitness measured by arm curl test for upper extremity)and wall sit test for lower extremity were obtained in 266 participants who were recruited for ICAAN study, community- based multidisciplinary we...

Background: Increased incidence of small differentiated thyroid cancer (DTC) has emphasized the need for risk stratification and individualized disease management for these low risk DTCs. The aim was to validate a new dynamic risk stratification (DRS) system for prediction of structural recurrent/persistent disease in patients with DTC treated without radioactive iodine (RAI) remnant ablation therapy.Methods: This historical cohort study included 357 pat...