hrp0092p2-282 | Thyroid | ESPE2019

Treatment for Graves' Disease in Children and Adolescents: A Long-Term Retrospective Study at a Single Institution

Kim Min-Sun , Song Ari , Park Hyojung , Cho Sung Yoon , Jin Dong-Kyu

Background: Management options are limited for the treatment of Graves' disease (GD) in children and adolescents. Antithyroid drugs (ATDs) remain the first-line therapy in patients with GD, despite a high relapse rate. We investigated the clinical characteristics, treatment, the outcome, and predictors of a remission of children and adolescents with GD at a single center.Methods: We retrospectively reviewed the medic...

hrp0082p2-d3-313 | Bone (2) | ESPE2014

Osteogenesis Imperfecta Type I Caused by a Novel Mutation in the Start Codon of the COL1A1 Gene in a Korean Family and the Course of Pamidronate Treatment for 1 Year

Cho Sung Yoon , Jin Dong-Kyu , Yu Jae-Hong , Han Heon-Seok

Background: A 3-year-old boy appeared healthy at birth and did not experience any fractures until 12 months of age. Blue sclera, frequent fractures without adequate trauma, nearly normal stature, the absence of dentinogenesis imperfecta, no bony deformity, and no limitation of mobility were characteristics suggestive of OI type I that were observed in the patient. The patient’s mother had blue sclera and a history of frequent fracture episodes until the age of 15 years.</...

hrp0084p1-154 | Miscelleaneous | ESPE2015

Novel Compound Heterozygous BMP1 Variants Associated with Osteogenesis Imperfecta

Yang Aram , Huh Rimm , Kim Jinsup , Cho Sung Yoon , Jin Dong-Kyu

Background: Osteogenesis imperfecta (OI) includes a group of disorders with a susceptibility to bone fractures, the presentation ranging from slightly increased fracture frequency to death in the perinatal period.Objective and hypotheses: Autosomal-dominant inheritance with type I collagen biosynthesis defects is the most common, but many autosomal-recessive genes have been previously reported.Method: Whole-exome sequencing was per...

hrp0084p3-1132 | Puberty | ESPE2015

Effects of GnRH Agonists and Antagonists on Danazol-Induced Precocious Puberty Rat

Yang Aram , Huh Rimm , Kim Jinsup , Cho Sung Yoon , Jin Dong-Kyu

Background: GnRH agonists are a common treatment modality for patients with central precocious puberty.Objective and hypotheses: Danazol-induced precocious puberty rats were used as an animal model to compare the effects of GnRH analogues and to assess combinations of treatment with agonistic and antagonistic GnRH analogues.Method: A 5-day-old female Sprague–Dawley rats were subcutaneously injected with a single dose of 300 &#...

hrp0084p3-1246 | Turner | ESPE2015

Turner Syndrome with Breast Development: Case Report

Park Sung Won , Cho Sung Yoon , Kim Jinsup , Huh Rimm , Kim Su Jin , Jin Dong-kyu

Introduction: Turner syndrome (TS) is caused by monosomy or structural abnormalities of the X chromosome, with a prevalence of out 1/2500 females live birth. Most important clinical features of TS are short stature and gonadal failure. Approximately one third of girls with TS may undergo spontaneous puberty. Here we report a case of a variant TS with breast development.Case report: A 9-year-old girl was referred to our paediatric endocrinology outpatient...

hrp0092p2-158 | GH and IGFs | ESPE2019

Clinical and Genetic Characteristics of Eleven Korean Patients with Hypochondroplasia and Outcomes of Growth Hormone Therapy

Kim Min-Sun , Im Minji , Park Hyojung , Park Mi Jung , Kim Shin Hye , Cho Sung Yoon , Jin Dong-Kyu

Hypochondroplasia (HCH) is an autosomal dominant inherited skeletal dysplasia with abnormal growth pattern and inadequate pubertal growth spurt. Achondroplasia and HCH have many similar phenotype, however, HCH show the mildest phenotype among FGFR3-associated skeletal dysplasia, and the radiologic findings are usually so subtle. We investigated to evaluate clue for the hypochondroplasia, and clinical and genetic characteristics of eleven Korean patients with HCH. We a...

hrp0089lb-p19 | Late Breaking P1 | ESPE2018

Characterization and Clinical Course of Prolactinoma in Korean Adolescents

Yang Aram , Im Minji , Song Ari , Kim Jinsup , Shin Hyung-Jin , Park Hwan-Hee , Cho Sung Yoon , Jin Dong-Kyu

Prolactinoma is most common functioning pituitary adenoma(50%). However, there have been limited studies for prolactinoma in adolescents. Pituitary adenomas are uncommon in childhood and adolescence (<3% of childhood supratentorial tumors, 3–6% of all surgically treated adenomas). The aim of this study is to assess the characteristics of Korean adolescents with prolactinoma and their clinical course. This study is retrospective cohort study. Patients diagnosed with pr...

hrp0089lb-p13 | Late Breaking P1 | ESPE2018

Clinical and Endocrine Characteristics and Genetic Analysis of Korean Children with McCune–Albright Syndrome

Cho Eun-Kyung , Im Minji , Kim Jinsup , Yang Aram , Song Ari , Ki Chang-Seok , Lee Ji-Eun , Cho Sung Yoon , Jin Dong-Kyu

McCune-Albright syndrome (MAS) is a rare disease defined by the triad of precocious puberty (PP), café au lait spots, and fibrous dysplasia (FD). There are only a few patients with MAS in Korean because of the rarity of this disease. We reported the various clinical and endocrine manifestations and genetic analysis of 14 patients with MAS in Korea. It is a retrospective cohort study of patients’ clinical data including about peripheral PP, FD. Also, treatment experie...

hrp0084p2-513 | Pituitary | ESPE2015

A Novel Mutation within the AVP Gene in an 18-Year-Old Male Patient with Kallmann Syndrome and Combined Pituitary Hormone Deficiency

Choi Won Bok , Kim Soo Young , Yoon Lira , Kim Young Mi , Cho Min-Jung , Ki Chang-Seok , Cho Sung Yoon , Jin Dong-Kyu , Kwak Min Jung

Background: Kallmann syndrome is the most common form of hypogonadotropic hypogonadism and is associated with genes such as KAL1, KAL2, CHD7, NELF, PROK2, and PROKR2. Genetic factors in hypopituitarism are involved with the gene mutation of PROP1, POU1F1, HESX1, LHX3, LHX4, and PTX2. We found a novel mutation of the AVP gene in a Kallmann syndrome patient with hypopituitarism.Case presentation: The pa...