ESPE Abstracts

Introduction: C-type natriuretic peptide (CNP, NPPC gene) and its receptor, natriuretic peptide receptor B (NPR-B, NPR2 gene), is critical for endochondral ossification in growth plate. Biallelic NPR2 mutations are known as acromesomelic dysplasia, type Maroteaux which is characterized by severe short stature. A monoallelic NPR2 mutation has been suggested to mildly impair long bone growth.Obje...

Purpose: Central precocious puberty (CPP) is less common in boys than girls; very little data is reported on long-term effects of gonadotropin-releasing hormone analog (GnRHa) treatment in boys with CPP. The aim of the study was to evaluate the impact of treatment with GnRHa on adult height (AH) and body mass index (BMI) in boys with idiopathic CPP.Subjects and Methods: In 18 boys with confirmed diagnosis of idiopathic C...

Turner syndrome is the most common chromosomal disorder in girls. They present classically short stature and delayed puberty. Turner girls with 45,X karyotype show normal female external genitalia. But Turner patients containing 45,X/46,XY mosaicism, or Sex-determining Region Y(SRY) gene may have mixed gonadal dysgenesis with various external sexual differentiation or pure gonadal dysgenesis. Existence of Y chromosome particles in Turner syndrome implies that they have risk of...

Purpose: Central precocious puberty (CPP) is less common in boys than girls; very little data is reported on effect of gonadotropin-releasing hormone analog (GnRHa) treatment in boys with CPP. The aim of the study was to evaluate growth changes in boys with CPP and early puberty (EP) treated with GnRHa therapy for 1 year.Subjects and Methods: In 60 (39 CPP and 21 EP) boys with confirmed diagnosis of CPP and EP, auxological (height, height standard deviat...

Objective: The present study aimed to evaluate the association of free thyroxine (FT4) and TSH with insulin resistance indices in euthyroid Korean children and adolescents using nationally representative data.Methods: A total of 259 children and adolescents were included in data from The Korean National Health and Nutrition Examination Survey 2015.Results: TSH levels were significantly positively associated with HOMA-IR (β...

Background: Nutrition is an important factor to regulate reproductive function. Some studies showed that high fat diet (HFD) may influence to puberty onset and irregular estrous cycles in the female rats. However, underlying regulation mechanism of nutrition on pubertal maturation and reproductive function is not well-known. Kisspeptin and neurokinin B (NKB) are an essential factor for regulation of pubertal development.Objective and hypotheses: In this ...

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: During puberty, gray matter (GM) volume decreases and white matter (WM) volume increases in brain. It has been suggested that pubertal hormones may induce some neuroanatomical changes during puberty. Central precocious puberty (CPP) is caused by premature activation of the hypothalamus-pituitary-gonadal axis in inappropriately early age. However, little is known about the differences of brain structure (especially brain volume) in idiopathic CPP. Also the relation ...

Background: Girls with precocious puberty have high LH levels and bone age was advanced over chronological age by 1 year. Obese children start puberty at an earlier age than non obese children. The mechanisms that cause obese children to grow faster starting from early childhood are not well defined.Objective and hypotheses: We analysed the effects of obesity on luteinising hormone (LH) secretion by using gonadotropin-releasing hormone (GnRH) tests in gi...

Purpose: Our previous study showed no correlation between -202 A/C IGFBP-3 promoter polymorphism and Δheight SDS in children with growth hormone deficiency. We investigated the influences of the -202 IGFBP-3 polymorphism on 1-year follow-up outcomes of GH treatment in Korean children with ISS.Methods: Data was obtained from 81 children with idiopathic short stature (peak serum growth hormone (GH) ≥ 7.0 ng/mL b...