hrp0097fc4.6 | Growth and syndromes (to include Turner syndrome) | ESPE2023

Persistence of Growth Promoting Effects in Infants and Toddlers with Achondroplasia: Results in Children Aged Over 2 Years Old from a Phase II Extension Study with Vosoritide

Savarirayan Ravi , Irving Melita , R Wilcox William , Harmatz Paul , Phillips John , III , E Polgreen Lynda , Tofts Louise , Ozono Keiichi , Arundel Paul , A Bacino Carlos , Basel Donald , B Bober Michael , Charrow Joel , Mochizuki Hiroshi , Kotani Yumiko , M. Saal Howard , Han Lynn , Sabir Ian , Fisheleva Elena , Huntsman-Labed Alice , Day Jonathan

Introduction: Vosoritide increases growth in children with achondroplasia aged 5–18 years (Savarirayan et al, Genet Med, 2021). We recently reported results from a phase 2, randomized, double-blind, placebo-controlled study (111-206) in young children with achondroplasia aged 3 months–5 years Here we present results from an open-label extension study (111-208) spanning up to 4 years of treatment in the children aged 2-5 years at study star...

hrp0092p2-189 | Growth and Syndromes (to include Turner Syndrome) | ESPE2019

Anophthalmia, Micrognathia, Combined Pituitary Hormone Deficiency, Severe Growth Retardation and Liver Dysfunction Induced Levothyroxine Sodium Powder in a Boy with Microdeletion of 14q22q23

Koyama Satomi , Naganuma Junko , Tsuboi Yayoi , Suzumura Hiroshi , Yoshihara Shigemi

Background: Microdeletion of 14q22q23 results in a rare chromosomal disorder associated with microphthalmia/anophthalmia, pituitary anomalies, polydactyly/syndactyly, micrognathia, growth restriction and mental retardation. Haploinsufficiency of the genes OTX2 (orthodenticle homeobox 2) and BMP4 (bone morphogenetic protein 4) are responsible for most of the phenotypic features in the 14q22q23 microdeletion syndrome. There are only a few reports about liver dys...

hrp0089p2-p088 | Diabetes & Insulin P2 | ESPE2018

Relationship Between Residual Endogenous Insulin Secretion and Glycemic Control in Japanese Children and Adolescents with Type 1 Diabetes

Musha Ikuma , Kawana Hiroshi , Akatsuka Junya , Ohtake Akira , Amemiya Shin , Kikuchi Toru

Background: Difficulty of glycemic control varies among subjects with type 1 diabetes (T1D). Influence of residual endogenous insulin detected by serum C-peptide (CPR) levels has noted to be on glycemic control. Flush glucose monitoring (FGM) detects glucose concentration in intercellular fluid (sensor glucose) every 15 minutes to reveal daily glucose profiles.Aims: We tried to clarify the relationship between serum CPR and the excursion of blood glucose...

hrp0092fc5.6 | Thyroid | ESPE2019

Homozygous Loss-of-Function Mutation in the SLC26A7 Gene Coding a Novel Iodide Transporter Causes Goitrous Congenital Hypothyroidism

Suzuki Atsushi , Ishii Jun , Yoshida Aya , Yamguchi Naoya , Tanaka Tatsushi , Aoyama Kohei , Tateyama Michihiro , Chen I-Shan , Kubo Yoshihiro , Kimura Toru , Yazawa Takuya , Arimasu Yu , Kamma Hiroshi , Saitoh Shinji , Mizuno Haruo

Introduction: Iodide transport in the thyroid is crucial for thyroid hormone synthesis. A homozygous loss-of-function mutation in the SLC26A4gene coding an iodide transporter located at the apical side in the thyroid follicular cells causes Pendred syndrome accompanied with goitrous congenital hypothyroidism (CH) and sensorineural deafness. However, about half of patients with Pendred syndrome demonstrate normal thyroid function. This indicates anothe...

hrp0089lb-p6 | Late Breaking P1 | ESPE2018

Sex Hormone Levels in Young Children: a Pilot Study of the Japan Environment and Children’s Study

Ayabe Tadayuki , Fukami Maki , Yamamoto-Hanada Kiwako , Ishitsuka Kazue , Mezawa Hidetoshi , Konishi Mizuho , Saito Mayako , Sasaki Hatoko , Satoh Miori , Nishizato Minaho , Michikawa Takehiro , Yamazaki Shin , Monden Yukifumi , Mise Nathan , Kayama Fujio , Shimono Masayuki , Kusuhara Koichi , Kawamoto Toshihiro , Sanefuji Masafumi , Kato Kiyoko , Oda Masako , Mitsubuchi Hiroshi , Katoh Takahiko , Saito Hirohisa , Ohya Yukihiro

Background: Information on sex hormone levels in young children is currently lacking, because those levels are generally below the lower limit of quantitation of conventional immunoassay methods. We investigated sex differences in serum levels of sex hormones in relation to upstream hormones and other background factors in young children, using liquid chromatography-tandem mass spectrometry (LC-MS/MS).Methods: This cross-sectional study enrolled 151 chil...