ESPE Abstracts

Background: McCune–Albright syndrome (MAS) is a sporadic and rare disorder, clinically defined by the classic triad of cafè-au-lait skin lesions, polyostotic fibrous dysplasia, and peripheral precocious puberty. Precocious puberty is common in girls, but has been reported in only 15% of affected boys. Clinical trials on therapeutic management of precocious puberty in MAS boys are limited to case reports or small patient cohorts and no data are reported about final he...

Background: Primary Addison’s disease (AD) is a rare endocrine condition, with reduced or absent secretion of adrenal hormones. Steroid replacement therapy normalizes endocrine assess and the quality of life. More than a half of patients display additional autoimmune conditions, which represent a considerable clinical concern.Objective and hypotheses: Antiparietal cells antibodies (APC-Ab) are commonly found in patients with autoimmune Addison’...

Background: IGF1 receptor (IGF1R) mutations are associated with pre- and post-natal growth retardation. We describe two monozygotic twins, one of them born small for gestational age (SGA), referred at the age 4 years and 2 months for short stature.Case presentation: The twins were born from non-consanguineous parents at 37-weeks gestational age by caesarean delivery. At birth: patient 1 had weight 2.076 kg (−2.4 SD...

Background: Cytochrome C oxidase (COX) is the fourth component of the respiratory chain. This protein is located within the internal membrane of mitochondria. COX deficiency is an inherited mitochondrial disease associated with considerable genetic and clinical variability(1). In fact, four clinical subtypes of this condition have been identified, each one with several phenotypic and genetic variants. Mitochondrial complex IV deficiency nuclear type 4 is a rar...

Background: Obesity and overweight are important disturbances, considering their consequences, especially in children. Diet composition is an important factor involved in weight management.Objective and hypotheses: The aim of this study was to analyse the food pyramid and dietary patterns of obese children.Method: An observational study was conducted targeting obese children from Romania. The study included 63 children, age 3–...

Introduction: Bilateral adrenal hemorrhage is a rare pathology, contrary to what happens with unilateral ones. It is more common in newborns and associated with situations of perinatal hypoxia, sepsis, traumatic births, or coagulation abnormalities. The classic triad includes jaundice, anemia, and a flank mass, which can lead to severe shock. Extensive bilateral hemorrhage is required to produce a situation of adrenal insufficiency. The diagnosis is made by im...

Introduction: X-linked hypophosphatemic rickets (XHR) is the most common form of hereditary rickets, with an estimated incidence of 1: 20.000 individuals. The main characteristic of the disease is excessive renal phosphate loss, which leads to hypophosphatemia with high phosphaturia and defective bone mineralization.XHR results from mutations in the in the PHEX gene (Phosphate Regulatory Gene with Homology for Endopeptidases located on t...

Background: The melanocortin-4 receptor (MC4R) pathway is a key regulator of energy balance and satiety. Variants in genes upstream of MC4R encoding leptin receptor (LEPR), proopiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1(PCSK1) and those involved in Bardet-Biedl syndrome (BBS) can impair MC4R pathway signaling. Clinically, these variants are characterized by hyperphagia (Pathologic insatiable hunger) and early-onset, severe obesity. E...

Background: Rare metabolic bone diseases (RMBD) are at the crossways of Endocrinology, Nephrology, Orthopaedic surgery and Rheumatology. Most of RMBD lead to short stature, bone pain, tooth anomalies, leg deformities, bone fragility and disability of variable importance. The organization of care varies immensely amongst European countries. Several European networks dedicated to RMBD already exist, supported by societies such as ESPE, ECTS or research grants, albeit their focus...

Background: PAPP-A2 is a metalloproteinase that specifically cleaves IGFBPs 3 and 5. Papp-a2 knock-out (KO) mice show a reduction in body size and skeletal abnormalities.Objective and hypotheses: Our objective is to report two affected families from Spain and USA. The Spanish family presents a homozygous frameshift mutation in exon 3 of the PAPP-A2 gene (c.1927_ 1928insAT, p.D643fs25X) resulting in a premature stop codon, with 2 of 4 si...