ESPE Abstracts

Background: Hypophosphatasia (HPP) is an inherited bone disorder caused by ALPL gene mutations. It is classified into 6 clinical types (perinatal lethal form, prenatal benign form, infantile form, childhood form, adult form, and odontohypophosphatasia). Severe types show autosomal recessive inheritance, and mild types show autosomal recessive or autosomal dominant inheritance. The adult form is asymptomatic in childhood. Treatment includes ALP enzyme ...

Background: 15% of patients with Williams syndrome develop hypercalcemia that is described as mild and transient. There are, however, reported cases with severe hypercalcemia that did not respond to traditional therapy. Pamidronate was used in the treatment of this condition, and was successful in the few reported cases in the literature.Case presentation: We report a 9 month old female who presented with failure to thrive, polyuria and polydipsia. She h...

Background: Children born small for gestational age (SGA) are at risk for metabolic syndrome (MetS) as adults and show a higher prevalence of MetS components.Objective and hypotheses: To define the association between low birth weight and the presence of MetS in a cohort of obese Italian children and adolescents.Method: The presence of MetS was studied in a cohort of obese (BMI >90th centile) children and adolescents consisting...

Background: Homozygous or compound heterozygous mutations of gene CYP24A1 have recently been reported to cause idiopathic infantile hypercalcemia due to increased intestinal absorption of calcium. However, an autosomal dominant transmission with partial penetrance of the trait was also suggested.Objective and hypotheses: Evaluation of the frequency of CYP24A1 mutation and evaluation of the impact of heterozygous mutation on calcium meta...

Background: Ovarian and uterine development in relation to hormonal feedback mechanisms (E2, LH, FSH, and inhibin) has rarely been studied. Therefore, the age specific and longitudinally adequate replacement dose of estradiol to achieve normal maturation in terms of ovarian and uterine development during infancy, childhood and adolescence remains not well known. However, aromatase deficiency offers an excellent model to study the relevant estradiol dose needed to ac...

Introduction: Turner syndrome (TS) is characterized by short stature and premature ovarian failure. Genetic component of TS patients with diagnosis of inflammatory bowel disease has not been largely studied.Case Report: A 94/12-year-old girl with history of Crohn’s disease was evaluated for short stature. Her disease was well controlled with medications, however she continued with linear growth failure. Medical history included...

Background: Hyponatremia is an electrolyte disorder, that may lead to severe complications such as rhabdomyolysis, seizures, coma, and death. Clinicians do take hyponatremia seriously. However sometimes clinicians should be careful in interpreting the low laboratory sodium level as it does not necessarily reflect the actual natremic status especially when the patient is euvolemic and having normal serum osmolality, for which pseudohyponatremia should be consid...

Background: Current data from genome wide association studies (GWAS) explains 24.6% of the variation in adult height from 3290 single nucleotide polymorphisms (SNPs)1. Data on the genetic control of growth velocity during childhood is more limited and no previous studies have linked childhood growth to changes in the transcriptome (gene expression) or epigenome (DNA methylation). Here we present a systems biology approach to understand mid-child...

Background: Primary adrenocortical insufficiency (Addison’s disease) is reported to be five more times frequent in adult patients with type 1 diabetes mellitus (T1DM) than in the general population with a multifactorial aetiology involving autoimmune, inflammatory and metabolic mediators. Recent data indicate that more than half of children with T1DM show subnormal cortisol response. Subnormal cortisol response may impair the metabolic control of patients with T1DM as the...

Background: Obesity epidemic is associated with diabetes and it’s complications at young age. Meanwhile, there is no recommendation concerning stratification as a risky for the overweight without dysglycemia by WHO criteria.Objective and hypotheses: Insulin response during OGTT might be dependent on BMI and can reflect preclinical stage of dysglycemiaMethod: 72 otherwise healthy adolescents aged 13.56±2.47 y.o. were exami...