hrp0092p1-173 | Bone, Growth Plate and Mineral Metabolism (1) | ESPE2019

Cutoff Value for 25 Hydroxy-Vitamin D Which Leading to sYmptomatic Vitamin D Deficiency in Children is 15 ng/mL in a Chemiluminescent Immunoassay

Ogiwara Yasuko , Hachiya Rumi , Shibata Nao , Ishii Akira , Higuchi Shinji , Nagasaki Keisuke , Kamasaki Hotaka , Yorifuji Toru , Hasegawa Yukihiro

Background & Purpose: Vitamin D is essential for bone and calcium metabolism, and a deficiency of this nutrient can lead to rickets and hypocalcemia. A 25 hydroxy-vitamin D (25OHD) value below 12 ng/mL (30 nmol/L) has been established by global consensus on the basis of several studies as constituting vitamin D deficiency. For example, (1) the incidence of nutritional rickets can increase at a 25OHD concentration of less than 12 ng/mL; (2) PTH increases wh...

hrp0086p2-p518 | Fat Metabolism and Obesity P2 | ESPE2016

Vitamin D Deficiency in Obese Children and the Relationship with Insulin Resistance and Metabolic Syndrome

Fernandez Viseras Irene , Angeles Santos Mata Maria , Lechuga Sancho Alfonso , Pedro Novalbos Ruiz Jose , Jose Macias Lopez Francisco

Background: Vitamin D is a pleiotropic hormone the deficiency of which is related with extraskeletal manifestations such as insulin resistance and cardiovascular risk disease.Objective and hypotheses: To investigate the levels of VitaminD in a sample of children with obesity and to evaluate the relationship between carbohydrate metabolism and metabolic syndrome (MS).Method: In this prospective cross-sectional study, 189 children ag...

hrp0082p2-d3-504 | Perinatal and Neonatal Endocrinology | ESPE2014

Vitamin D Deficiency as the Primary Cause of Neonatal Hypocalcemia in a Tertiary Hospital

Campos-Martorell Ariadna , Narvaez Karla , Clemente Maria , Yeste Diego , Mogas Eduard , Gerones Laura , Carrascosa Antonio

Background: Hypocalcemia is a common metabolic disorder in the neonatal period and may involve life-threatening situations. The aim is to analyze the main causes of hypocalcemia and its management.Objective and hypotheses: The aim is to analyze the main causes of hypocalcemia and its management.Method: Retrospective descriptive study by reviewing reports of 75 patients diagnosed of neonatal hypocalcemia (total Ca <7.6 mg/dl and...

hrp0084p3-778 | Diabetes | ESPE2015

Metabolic Control in Children in Northern Spain DM1A with Deficit of Vitamin D

Diez-Lopez Ignacio , Sarasua-Miranda Ainhoa , Lorente-Blazquez Isabel

Background: 1 000 million people worldwide presenting vitamin D deficiency in children prevalence of vitamin D deficiency in certain regions described up to 80%, especially at high latitudes (above 37). Has been postulated role of vitamin D in the immune system and in clinical variability DM1.Objective and hypotheses: To study the degree of deficit VITD in our population (Location: 42° 51’north latitude 2° 41’west longitude) with DM1 ...

hrp0097p1-537 | Multisystem Endocrine Disorders | ESPE2023

Effects of seasonal variability of insolation and COVID-19 pandemic isolation on vitamin D concentrations in children

Smyczyńska Joanna , Hilczer Maciej , Łupińska Anna , Pawelak Natalia , Lewiński Andrzej , Stawerska Renata

Introduction: Vitamin D may be considered as a hormone of prohormone of pleiotropic effects. Seasonal variability of insolation affects its synthesis in humans. In our latitude, vitamin D deficiency is widespread. In 2018, updated recommendations for vitamin D supplementation were published in Poland by Rusi&nacute;ska et al. In 2020, SARS-CoV-2 pandemic lockdown was introduced, with suggestions of protective anti-viral vitamin D role.<p class="ab...

hrp0086p2-p945 | Thyroid P2 | ESPE2016

Vitamin D Levels in Children with Hashimoto’s Thyroiditis: Before and after I-Thyroxine Therapy

Chaudhary Navendu , Kumar Rakesh , Sachdeva Naresh , Dayal Devi

Background: There is high prevalence of Vitamin D deficiency (VDD) in Hashimoto’s thyroiditis (HT) as reported in literature. However, it is uncertain whether VDD is a cause or effect of HT. The effect L-thyroxine replacement on vitamin D levels in children with HT has not been studied.Objective and hypotheses: To study vitamin D level of newly diagnosed children with HT and to observe the change in vitamin D level after L-thyroxine therapy.<p c...

hrp0092p2-268 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

The Effect of Vitamin D Supplementation on Androgen Levels of Adolescent Girls with Hyperandrogenism

Çig Esranur , Atar Müge , Pirgon Özgür

Aim: The aim of this study was to evaluate the effect of different doses of vitamin D supplementation on androgen levels in adolescent girls who were treated with metformin.Method: 45 adolescent girls diagnosed with hyperandrogenism were divided into the 3 different groups according to the treatment scheme. Patients treated with metformin (850 mg / day oral)(n = 15), metformin and vitamin D drops (2,000 IU / day)(<em...

hrp0082p3-d2-893 | Perinatal and Neonatal Endocrinology (1) | ESPE2014

Severe Vitamin D Deficiency Among Pregnant Women and Their Newborns in Turkey

Parlak Mesut , Kalay Zuhal , Kirecci Ahmed , Guney Ozgur , Koklu Esad , Kalay Salih

Objectives: Vitamin D deficiency is an important health problem in pregnant women and their infants in sunny countries. The present study evaluated serum 25-hydroxyvitamin D3 (25(OH)D3) concentrations in pregnant women and in their newborns and determined the risk factors in LSES cities in Turkey.Methods: Ninety-seven pregnant women and their newborns were included in the study between December 2012 and February 2013. All of the pregnant women had irregu...

hrp0082p3-d1-660 | Bone | ESPE2014

Normal Serum Calcium Levels and Vitamin-D Dependent Rickets Type 2 (VDDR-II): a Novel Vitamin D Receptor Mutation

Goksen Damla , Ozen Samim , Kitanaka Sachiko , Isojima Tsuyoshi , Cogulu Ozgur , Darcan Sukran

Background: VDDR-II, is an autosomal recessive disorder characterized by the early onset of rickets with hypocalcemia, secondary hyperparathyroidism and hypophosphatemia and is caused by mutations in the vitamin D receptor (VDR) gene.Objective and hypotheses: 2 years old Turkish girl first offspring of consanguineous parents admitted to the hospital for the evaluation of total alopecia and bilaterally genu varum deformity. She was born with normal pilosi...

hrp0084p1-14 | Bone | ESPE2015

No Secular Trend in Vitamin D Levels Over the Past 30 Years in Swedish Children

Andersson Bjorn , Albertsson-Wikland Kerstin , Swolin-Eide Diana , Magnusson Per

Background: The importance of vitamin D for skeletal health is well established and many recent reports indicate that vitamin D deficiency is linked to chronic diseases. Vitamin D status is defined by serum 25-hydroxyvitamin D (25(OH)D), and although there is no consensus on optimal levels of 25(OH)D concentrations of 50 nmol/l (20 ng/ml) meet the requirements in 97.5% of the population. In Sweden, sun cannot synthesize vitamin D during the winter, therefore supplementation is...