Endocrine Abstracts

Evaluation of learning methods similar to deep learning and device using deep learning for the diagnosis of thyroid nodules.BackgroundWe recently developed a deep convolutional neural network algorithm (SEveRance Artificial intelligence program, SERA) using 13,560 ultrasonography images of thyroid nodules labeled benign and malignant and this algorithm showed comparable diagnostic performance with experienced radiologists. We wondered whether this self-learning method of SERA ...

Background: Guanine nucleotide-binding protein, α stimulating (GNAS) gene have been reported to be associated with GH secreting pituitary adenoma. Approximately 40% of patients with acromegaly have GNAS mutation. In this study, we investigated the prevalence of GNAS mutation in Korean acromegalic patients and assessed the correlation with the biochemical or clinical characteristics.Method: We studied acromegalic patients who underwent surgery betwee...

Objective: The purpose of this study is to evaluate and compare the effectiveness of artificial intelligence-based computer-assisted diagnosis (AI-CAD) in diagnosing thyroid malignancy by inexperienced physicians and experienced radiologist.Methods: A total of 201 thyroid nodules from 192 patients was simultaneously evaluated by physician and radiologist using real-time ultrasound. After implementing AI-CAD, they reassessed the thyroid nodules. If necess...

Few studies have investigated the intracellular signaling pathways mediating the effects of glucagon-like peptide-1 (GLP-1) secretagogues in enteroendocrine L cells. Specific receptors, channels, and intracellular signaling proteins expressed by the L cells have only begun to be characterized. The present study aimed to investigate the role of the olfactory receptor (OR) OR51E1 in GLP-1 secretion. We verified the expression of olfactory marker protein (OMP), an indicator of OR...

Olfactory marker protein (OMP) is a marker of olfactory receptor-mediated chemoreception, even outside the olfactory system. Here, we report that OMP expression in the pituitary gland plays a role in basal and thyrotropin-releasing hormone (TRH)-induced prolactin (PRL) production and secretion. We found that OMP was expressed in human and rodent pituitary glands, especially in PRL-secreting lactotrophs. OMP knockdown in GH4 rat pituitary cells increased PRL production and secr...

Objectives: Prolactin (PRL) normalization after 3 months of Cabergoline (CAB) treatment are useful predictors of responsiveness in patients with prolactinoma. However, differences within the PRL normalization cut-off value have not been identified.Methods: We reviewed the medical records of patients with prolactinomas who were treated with CAB as a primary drug at Severance Hospital. We included patients who had a full dataset of pituitary hormone assays...

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...

Silent corticotroph adenomas (SCAs) are difficult to distinguish from other non-functioning pituitary adenomas (NFPAs) preoperatively. This study assessed the preoperative clinical parameters associated with SCAs. After excluding patients with increased 24-h urinary free cortisol, 341 patients who underwent surgery for NFPAs during 2011–2016 with available preoperative combined pituitary function test (CPFT) and immunohistochemical staining results were enrolled. The pati...