ESPE Abstracts

Background: Animal studies suggest a role of vitamin D in fetal lung development although not studied in preterm animals.Objective and hypotheses: We tested the hypothesis that vitamin D depletion does not aggravate respiratory insufficiency in preterm rat offspring. Furthermore, the effects of vitamin D depletion on growth and lung surfactant were investigated.Method: Female Sprague-Dawley rats were randomly assigned low vitamin D...

Background: It was suggested that vitamin D has both direct and indirect effects on modifying the lipid profile in patients with diabetes through its regulatory action that increases the activity of lipoprotein lipase in adiposity.Objective and hypotheses: To detect the relationship between serum 25(OH) D and lipid profiles in patients with T1D and dyslipidemia and to study the effect of vitamin D supplementation on lipid profiles of vitamin D deficient ...

Background: Patients with congenital adrenal hyperplasia (CAH), due to 21 hydroxylase (OH) deficiency may develop an adverse cardiovascular risk profile as reported by few previous studies.Objective and Hypotheses: Blood pressure (BP) and echo parameters in children with CAH due to 21-OH deficiency were evaluated.Method: This cross-sectional study included 53 children. BP, echocardiographic left ventricular functions as well as gro...

Introduction: Hypophosphatemic rickets is usually due to genetic causes but in rare cases it can develop secondary to MAS, Fanconi syndrome, or oncogenic causes. Oncogenic osteomalacia, also called Tumor-Induced Osteomalacia (TIO), is a rare acquired paraneoplastic syndrome that develops as a result of excessive phosphate loss from renal tubules by FGF23 released from tumour tissue. In addition to the clinical features of rickets, gait disturbances, growth ret...

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...

XLH is the commonest inherited form of rickets. Impaired regulation of fibroblast growth factor 23 (FGF23) due to PHEX gene mutation leads to reduced tubular reabsorption of phosphate (TmP/GFR) and 1,25-dihydroxyvitamin D (1,25(OH)2D) synthesis with hypophosphatemia. Patients show rickets and osteomalacia, bone and muscular pain, stunted growth, and reduced quality of life. We report preliminary data on burosumab therapy in a selected sample of Italian patients.<p class="a...

Background: Vitamin D-dependent rickets type 3 (VDDR3) is a rare autosomal dominant inheritance disease, which is caused by the gain-of-function mutation in CYP3A4 (c.902T>C p.Ile301Thr).Case Presentation: We report the case of a 32-month-old boy presented with discomfort of both knee-joints, poor mobility, and gait abnormality when running. Laboratory examinations revealed low concentrations of serum calcium, phospho...

SLC34A1 encodes renal sodium-phosphate cotransporter 2A. It has been identified as being a part of the etiology of idiopathic infantile hypercalcemia. We report a case of a 1-month old girl, initially hospitalized due to perinatal detection of nephrocalcinosis. Blood tests showed hypercalcemia, hypophosphatemia, hypercalciuria and increased 1,25-(OH)2D3. Renal ultrasound revealed medullary nephrocalcinosis. An abnormality in vitamin-D metabolism was suspected and genetic testi...

Background: Patients with vitD resistant rickets (VDRR) due to vitD receptor (VDR) mutations have extreme rickets along with alopesia, severe hypocalcemia, hypophosfatemia secondary to hyperparathroidism and elevated 1,25(OH)2vitD. Although there is no standard therapy for this patients, long-term or intermittanat i.v. or high dose oral calcium suplementations are recommended to correct the hypocalcemia and secondary hyperparathyroidism. ...

Background: A 10 year old girl with a background history of severe autism and developmental delay presented with significant and rapidly progressive asymmetrical breast enlargement accompanying her relatively rapid progress through puberty. There was associated tissue breakdown exacerbating her discomfort and leading to increasing problems with anxiety and behaviour.Objective and hypotheses: To explore the aetiology of the huge breast development and the...