ESPE Abstracts

Background: The recent articles showed a kind of associations of the serum vitamin D levels and chronic diseases, for example, autoimmune diseases, vascular disorders, as well as malignancies. Also vitamin D deficiency impacts normal growth and maximal bone mineral accretion in puberty. Of pediatric population in Korea, the prevalence of cases of vitamin D deficiency and precocious puberty were continuously increasing nowadays.Objective and hypotheses: W...

Background: In gender dysphoric adolescents GnRH agonists can be used to suppress pubertal development of the natal sex. Subsequently cross sex hormones can be given to induce pubertal development of the experienced gender. Only few data are available on the safety of this treatment. Lipid levels are known to increase during puberty and pubertal suppression may alter this increase. In gender dysphoric male-to female (MtF) adults oestrogens has been shown to result in a more fa...

Purpose: The aims of this study were to identify the secular changes of WC and WHR, to compare WC with the prior Korean reference, to confirm the distribution of mean WHR values by age and sex, and to determine if WHR cutoff value of 0.5 is an appropriate predicting factor of cardiometabolic risk in childhood, using nationally representative data in children and adolescents.Methods: We performed a retrospective, cross-se...

Methods: We performed retrospective study using database of the patients with congenital hypothyroidism treated with or without Levo-Thyroxine at Bundang Jesaeng General Hospital, from January 1998 to February 2016. Their ages, birth weights, gestational ages, symptoms, ages at diagnosis and treatment were recorded. We measured TSH, free thyroxine (FT4), triiodothyronine (TT3) levels at diagnosis and treatment, and those levels at one, two and three months after treatment. Thy...

Purpose: The goal of treatment for true precocious puberty (TPP) and early puberty with GnRH agonist (GnRHa) is to prevent loss of genetic potential of target height (TH). And to regress secondary sex characteristics appropriate for patient’s age. But some patient’s growth velocity (GV) after treatment would decline and suggest that final height (FH) was not improved. So, we investigated the effect of combined GH and GnRHa treatment for near-FH (NFH) improvement....

Background: Pubertal growth and adult height are important to many transgender adolescents undergoing medical transition. However, few studies are available on the impact of puberty suppression (PS) with GnRH analogues (GnRHa) and hormonal therapy (HT) with testosterone on growth. In this longitudinal cohort study, we investigated the effect of PS and HT on growth and adult height in transgender boys.Methods: A total of ...

Background: Current guidelines suggest to test obese subjects with impaired fasting glucose (IFG) by oral glucose tolerance test (OGTT) for the presence of type 2 diabetes. This strategy, however, misses most cases of impaired glucose tolerance (IGT).Objective and hypotheses: To investigate whether combining risk factors improves predictability of IGT in OGTT.Method: In this observational study of 145 overweight children, aged 2.5&...

Background: Gender dysphoria is characterised by an incongruency between the perceived gender identity and the biological sex. The cause of gender dysphoria is unclear and environmental as well as genetic factors may be important. It is well known that during sexual differentiation sex steroids control not only the differentiation of the internal and external genitalia but also the sexual differentiation of the brain. Structural as well as functional differences have been show...

Introduction: Little is known about the effects of puberty suppression (PS) and hormone therapy (HT) on growth and adult height in transgender adolescents. These are topics of interest since height differs between sexes and some transgirls wish to limit their growth. In this longitudinal cohort study, we investigated the influence of PS and HT on growth and the efficacy of growth reduction therapy in transgender girls.Methods:</s...

Background: We investigated the relationship of birth anthropometry with cord blood insulin-like growth factor 1 (IGF-1) and leptin levels in Korean infants born at ≥28 weeks' gestation.Methods: One hundred five appropriate-for-gestational-age (AGA) infants, defined as infants with birth weights (BWs) between the 10th and 90th percentiles for gestational age, were enrolled. Enrolled infants were stratified into...