ESPE Abstracts

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...

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...

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 ...

Background: Vitamin D deficiency (VDD) is common in the general pediatric population of the world. Some studies reported that low vitamin D levels with an increased risk of diabetes.Objective and hypotheses: VDD can be more common in children with type 1A diabetes (DM1A) than those with type 1B diabetes (DM1B). To evaluate 25OHD levels in children with newly diagnosed DM1A and DM1B patients and investigate any relation with clinical and laboratory data a...

Background: Despite a shining sun all through the year, vitamin D deficiency is still prevalent in Egyptian children which suggests a relative resistance to vitamin D in Egyptian population.Aim: To assess 25(OH)D status in healthy pre-pubertal Egyptian children and to relate its levels to anthropometric parameters in these children.Methods: Sixty healthy children aged between 3 and 10 years coming to the Outpatient clinic, Children...

Background: Fibroblast growth factor 23 (FGF23) decreases renal phosphate reabsorption and serum 1,25-dihydroxyvitamin D [1,25(OH)2D] levels. X-linked hypophosphatemic rickets (XLH) is caused by mutations in the PHEX gene and accompanied by decreased serum inorganic phosphate (IP) and elevated serum FGF23 levels. Patients with XLH are generally treated with oral active vitamin D and phosphate, but some previous reports indicated that serum FGF23 levels increased with ...

Introduction: Several studies showing a high prevalence of vitamin D deficiency in pregnant women have been published in recent years. Vitamin D deficiency during pregnancy has been related to adverse events both in mother and child. Plasma 25-OH vitamin D (25(OH)D) levels in the newborn are dependent on maternal deposits and show a close correlation with maternal levels; thus, neonates of vitamin D-deficient mothers present a greater risk of hypocalcaemia, rickets and a highe...

Background: Adequate vitamin D level is essential for optimal child’s growth. Small for Gestational Age (SGA) is a common cause of short stature in childhood. Being born SGA is associated with a risk of developing insulin resistance.Objective and hypotheses: The aim of the study was to evaluate serum vitamin D levels in short children born SGA and appropriate for gestational age (AGA) and to assess their relationship with insulin sensitivity.<p ...

Background: Hypophosphatemic rickets (HR) is most commonly X-linked or autosomal dominant, but autosomal recessive (AR) forms have been described. ARHR1 (DMP1) and ARHR2 (ENPP1) share identical biochemical characteristics of excessive renal phosphate wasting due to increased circulating levels of the phosphatonin FGF23 and low serum levels of 1,25(OH)2D. By contrast, in hereditary hypophosphatemic rickets with hypercalciuria (HHRH) phosphaturia is ...

Background: Many epidemiological studies have found high prevalence of vitamin D deficiency in children with type 1-diabetes mellitus (T1D). 1,25(OH)2D is a potent immune-modulator that also enhances the production and secretion of several hormones, including insulin. The association of low serum 1,25(OH)2D levels with high glucose level and diminished insulin sensitivity suggests that vitamin D may modulate insulin metabolism.Aim and objectives: To scre...