hrp0092fc3.1 | Multi-system Endocrine Disorders | ESPE2019

Germline-Derived Gain-of-Function Variants of Gsα-Coding GNAS Gene Identified in Nephrogenic Syndrome of Inappropriate Antidiuresis: The First Report

Fukami Maki , Miyado Mami , Takada Shuji , Sasaki Goro , Nagasaki Keisuke , Masunaga Youhei , Saitsu Hirotomo , Ogata Tsutomu

Background: The stimulatory G-protein α-subunit encoded by GNAS exons 1–13 (GNAS-Gsα) mediates signal transductions of multiple G-protein-coupled receptors including arginine vasopressin (AVP) receptor 2 (AVPR2). To date, various germline-derived loss-of-function variants of maternal and paternal origin have been found in pseudohypoparathyroidism type Ia and pseudopseudohypoparathyroidism respectively, and specific somatic gain...

hrp0092rfc3.4 | Multi-system Endocrine Disorders | ESPE2019

Peripheral Glucocorticoid Metabolim May Reflect Resolution of Inflammation in Kawasaki Disease

Sai Shuji , Tamura Takuya , Nagumo Kiyoshi , Chapman Karen

Background: Kawasaki disease (KD) is an acute inflammatory disorder, associated with systemic vasculitis including coronary artery aneurysms (CAA). Treatment with intravenous immunoglobulin (IVIG) can resolve inflammation. However, about 20% patients show resistant to IVIG treatment and some of the cases required additional treatments. Recently, IVIG plus adjuvant glucocorticoid hormones (GC) has been shown to be an effective therapy for these patients, su...

hrp0092p2-30 | Bone, Growth Plate and Mineral Metabolism | ESPE2019

A Rare case of Neonatal Hypocalciuric Hypercalcemia Complicated with Arrhythmia

Arai Yuto , Okumura Ryo , Wada Soichiro , Haseyama Keiji , Sai Shuji

Background: Familial hypocalciuric hypercalcemia is a rare, lifelong, but benign hereditary disorder due to its mild, often asymptomatic phenotype. Here we present a rare case of neonatal hypocalciuric hypercalcemia complicated with arrhythmia.Case: A healthy male infant weighing 2636g was delivered by spontaneous vaginal delivery at term. The pregnancy had progressed normally, but neonatal arrhythmia was found by physic...

hrp0084p3-681 | Bone | ESPE2015

A Case of Vitamin D Deficient Rickets Showing Resistance to the Treatment of Active Vitamin D: Severe Calcium Deficiency Cause Vitamin D Resistance

Tanaka Hiroyuki , Hasegawa Kosei , Takatsuka Moe , Okahara Chika , Noguchi Yoshie , Takata Tsutomu , Ogura Kazuo

Case presentation: A 2-year-boy was referred tour hospital for the rickets. He was the first son between non-consanguineous parents and fed with breast milk. But after weaning, he was avoided from taking egg, dairy products including cow’s milk. He was also suffered from developmental delay and had strong food preference. He could take only two kinds of foods, steamed rice and soy bean product, tofu. X-ray findings showed typical rachitic change on long bone metaphysis. L...

hrp0084p2-214 | Bone | ESPE2015

TmP/GFR is a Useful Marker in Making a Clinical Diagnosis of X-Linked Hypophosphataemic Rickets Caused by the PHEX Gene Mutation

Takeda Ryojun , Miyai Kentaro , Takagi Masaki , Goto Masahiro , Ariyasu Daisuke , Izawa Masako , Igaki Junko , Suzuki Eri , Nakamura Yoshie , Hasegawa Yukihiro

Background: The clinical diagnosis of x-linked hypophosphatemic (XLH) rickets is based on a number of biochemical observations. These include a reduction in the percentage of tubular reabsorption of phosphate (%TRP), and in the maximal tubular phosphate reabsorption capacity corrected for glomerular filtration rate (TmP/GFR). However, it is important to maintain sufficient renal blood flow in order to accurately calculate TmP/GFR.Objective: The aims of t...

hrp0082p2-d3-386 | Fat Metabolism & Obesity (2) | ESPE2014

Miglitol Upregulates Uncoupling Protein 1 (ucp1) by Enhancing β3-Adrenergic Signaling in Mature Brown Adipocytes of Rat

Sugimoto Satoru , Nakajima Hisakazu , Nishikawa Taichiro Nishikawa , Kodo Kazuki , Itoh Ikuyo , Kosaka Kitaro , Hosoi Hajime

Introduction: We previously reported that miglitol, an alpha-glucosidase inhibitor (α-GI), increases energy expenditure by enhancing β3-adrenergic signaling of brown adipose tissue (BAT) and reduces obesity in dietary-induced obese mice (S Sugimoto et al, at the 9th joint meeting of Pediatric Endocrinology, 2013) (Nutrition & Metabolism). However, this report did not describe the mechanism by which miglitol enhances β3-adrenergic signaling....