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...

hrp0086p1-p100 | Bone &amp; Mineral Metabolism P1 | ESPE2016

Cord 25-Hydroxyvitamin D and Infant Cranial Growth: An Odense Child Cohort Study

Egge Sissil , Christensen Nikolas , Lykkedegn Sine , Jensen Tina Kold , Christesen Henrik Thybo

Background: Vitamin D deficiency can cause rickets and impaired bone growth in infants. In India, randomization to higher vitamin D supplementation doses in pregnancy led to decreased anterior fontanelle and increased head circumference at 0 and 9 months.Objective and hypotheses: To investigate the impact of cord 25-hydroxyvitamin D (25(OH)D) concentrations on cranial measures.Method: In a Danish prospective birth cohort of 2549 mo...

hrp0086p2-p531 | Fat Metabolism and Obesity P2 | ESPE2016

Associations of Serum 25-Hydroxyvitamin D and Components of the Metabolic Syndrome in an Egyptian Cohort

Ibrahim Amany , Meabed Mohamed , El Mosallamy Nevin , Abo El Hassan Gehad

Background: Vitamin D deficiency may be associated with increased risk of metabolic syndrome.Objective and hypotheses: We aimed to assess the relation between 25-hydroxyvitamin D (25(OH) D) with the different metabolic syndrome components in overweight and obese subjects.Method: Ninety eight subjects (≥85th percentile for age and sex) recruited from the Diabetes, Endocrine & Metabolic Paediatrics Unit (DEMPU), Cairo Unive...

hrp0082p1-d3-90 | Diabetes (2) | ESPE2014

The Relationship of Serum 25-Hydroxyvitamin D with Glucose Homeostasis in Obese Children and Adolescents in Zhejiang, China

Jiang You-Jun , Huang Ke , Fu Jun-Fen , Liang Jian-Feng , Zhu Hong , Zhu Zhi-Wei , Hu Li-Fei , Dong Guan-Pin , Chen Xue-Feng

Background: Evidence of the association between vitamin D, insulin resistance and oral disposition index (oDI) in obese children and adolescents is limited.Objective and hypotheses: We investigated serum 25(OH)D levels in obese children and adolescents in Zhejiang, China, and determined the relationship between serum 25(OH)D and glucose metabolism.Method: A cross-sectional design was used. All together 348 obese and 445 non-obese c...

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...

hrp0086p2-p301 | Diabetes P2 | ESPE2016

HbA1C and IGF-1 Levels in Diabetic Children Treated with Vitamin D

Dehkordi Elham Hashemi , Dehkordi Vida Hashemi , Fatemi Saied Mohammad Reza , Kelishadi Roya

Background: Diabetes mellitus type 1 (T1DM) is the most common chronic diseases in children. Studies show that the prevalence of vitamin D deficiency is higher in this group of patients.Objective and hypotheses: The aim of this study was evaluation HbA1C and IGF-1 levels in children with T1DM that receiving vitamin D supplement.Method: A total of 30 diabetic children 5–15 years with 25(OH) D levels lower than 74 nmol/l (29 ng/...

hrp0082p2-d2-300 | Bone (1) | ESPE2014

Vitamin D Levels in Children, Adolescents, and Young Adults with Juvenile onset Systemic Lupus Erythematosus: a Cross-sectional Study

Stagi Stefano , Capirchio Laura , Bertini Federico , Menchini Camilla , Scalini Perla , Seminara Salvatore , de Martino Maurizio , Falcini Fernanda

Background: Hypovitaminosis D is common in the general population. Although many studies on 25-hydroxyvitamin D (25(OH)D) are available on systemic lupus erythematosus (SLE), little data is present in juvenile onset SLE (JSLE) patients.Objective and hypotheses: This study aimed to assess serum 25(OH)D levels in JSLE patients and to identify risk factors for vitamin D deficiency in this population.Method: Forty-five consecutive Cauc...

hrp0094p2-175 | Fat, metabolism and obesity | ESPE2021

The relationship between acanthosis nigricans and vitamin D in obese children and adolescents

Zeynep Altun Ekin , Ergur Ayca Torel , Bilir Pelin ,

Studies show that vitamin D deficiency can have negative effects on glucose homeostasis, although the mechanism for this is still unclear. The possible mechanism may be related to the presence of vitamin D receptors and their metabolizing enzymes in insulin-sensitive cell types, such as pancreatic cells and adipocytes. The aim of this study is to compare how serum 25- OH D level and HOMA-IR index are related to acanthosis nigricans (AN) and which of them is a better marker for...

hrp0086p2-p172 | Bone &amp; Mineral Metabolism P2 | ESPE2016

Potential Role of Vitamin D in Pathogenesis of Acute Rheumatic Fever

Hanedan Onan Sertac , Demirbilek Huseyin , Aldudak Bedri , Bilici Meki , Demir Fikri , Muhtar Yilmazer Murat

Background: Acute rheumatic fever (ARF) is a non-suppurative complication of Group A beta-hemolytic streptococcus pharyngitis. The underlying mechanisms have not been fully elucidated. A series of autoimmune processes are thought to be involved in pathogenesis. Low vitamin D levels have been reported in various autoimmune diseases.Objective and hypotheses: The aim of the present study is to evaluate the association of vitamin D levels and its impact on t...

hrp0082p3-d1-663 | Bone | ESPE2014

Hypovitaminosis D: Factors Affecting in Spanish Children and Adolescents

Leis Rosaura , Vazquez Rocio , Maria Seoane Luisa , Barja-Fernandez Silvia , Martinez-Silva Isabel , Aguilera Concepcion M , Olza Josune , Gil-Campos Mercedes , Castro-Feijoo Lidia , Cadarso-Suarez Carmen , Gil Angel , Tojo Rafael

Background: Vitamin D adequate concentration is essential for growth, development and health during vital cycle. Hypovitaminosis D pandemic is associated with a wide range of pathologies.Objective and hypotheses: The objectives of the present study were to characterize vitamin D status in children and adolescents residing in Galicia (Northwest of Spain, latitude 43°N) and to determine if serum 25-hydroxy-vitamin D (25(OH)D) concentration is related ...