ESPE Abstracts

Background: Skeletal mass approximately doubles at the end of adolescence. Socioeconomic Status (SES) and Vitamin D status may play a role in the development of bone mass.Objective and hypotheses: The aim of the present study is to examine the effects of different socioeconomic conditions on bone mineral density (BMD) and vitamin D status in healthy female college students and to determine the possible association between Vitamin D status and BMD.<p ...

Background: Vitamin D dependent type 1 rickets is a rare, autosomal-dominantly inherited disorder due to an inactivating mutation in CYP27B1 (25-OH vitamin D-1-α-hydroxylase) gene. It is characterized by early onset of rickets with hypocalcemia. We report a boy admitted with symptoms of hypocalcemia and who carried a novel mutation in CYP27B1 gene.Case: The patient was admitted with tetany at the age of 12 months. When he had his first convulsion, h...

Background: The prevalence of obesity has increased dramatically in Greece in the last decades, and more than 30% of children and adolescents are currently overweight or obese. Obesity is associated with decreased circulating 25-hydroxyvitamin D concentrations, which might predispose to metabolic syndrome and cardiovascular morbidity and mortality.Objective and hypotheses: To determine serum 25-hydroxyvitamin D concentrations and their relationship to ca...

Background: Recent studies have found a widespread deficiency of vitamin D during pregnancy. Its significance is still not fully understood, although low Vit-D levels have been associated to increased risk for conditions such as preeclampsia, bacterial vaginosis, neonatal sepsis, and early respiratory infections in the child. Supplementation to the pregnant mother is still a matter of debate, therefore it is important to understand better the causes, risk factors, and possible...

Background: Carbohydrate counting is essential in diabetes management to match insulin doses to carbohydrate intake. Though recommendations concerning macronutritient composition exist (ISPAD Clinical Practice Consensus Guidelines 2022: Nutritional management in children and adolescents with diabetes), fat and protein intake is usually not calculated. Therefore, little is known if these recommendations are followed. Lower carbohydrate intake is reported to be ...

Background: Hereditary 1,25-dihydroxyvitamin D resistant rickets (HVDRR) caused by vitamin D defective receptor.Objective and hypotheses: We performed VDR gene analysis four patients with alopecia, skeletal dysplasia, and hypocalcaemia.Method: Genomic DNA extracted from peripheric blood. Whole gene sequence analysis was performed.Results: We found homozigot p.Q152* (c.454G>T) mutation three patients. Two ...

Introduction: Vitamin D (VitD) is a prohormone that is synthesized in the skin after sun exposure. Mandatory lockdown during the COVID-19 Pandemic may have altered the sun exposure time of children.Aim: to evaluate vitD levels in a sample of children and adolescents, and compare between pre-pandemic and pandemic periods.Methoths Children and adolescents, from a Portuguese tertiary ...

Introduction: Breast milk is a perfect food, but it can be deficient in vitamin D. In the Danish study, vitamin D was correlated in mothers, breast milk and not in breast milk and infants. We investigated the correlation between mother, breast milk, and infants vitamin D levels in Japan.Materials and Methods: This study included 84 pairs of mothers and 2-week-old infants born at the Iizuka Hospital and Vitamin D includin...

Background: The prevalence of childhood obesity has increased dramatically in the last decades and accounts for a significant increase in morbidity and mortality in adulthood.Objective and hypotheses: To determine the prevalence of 25-hydroxyvitamin D insufficiency and deficiency in overweight and obese children and adolescents.Method: 350 (n=350) children and adolescents (153 males (M), 197 females (F)) were recruited to ...

Background: Hereditary Vitamin D-Resistant Rickets (HVDRR) is a rare autosomal recessive disorder caused by mutations in the vitamin D receptor (VDR) resulting in end organ resistant to 1a,25-dihydroxyvitamin D, [1,25(OH)2D]. Majority of HVDRR has Elevated 1, 25(OH)2D which is a hallmark for diagnosis of this disease. High doses of vitamin D, oral calcium and most importantly IV calcium infusion are the mode of therapy in HVDRR.A...