ESPE Abstracts

Objective: Silver-Russell syndrome (SRS) is an imprinting disorder characterized by severe intrauterine and postnatal growth retardation and feeding difficulties. Patients can benefit from recombinant growth hormone (rGH) therapy which has shown its positive effect on adult height. Our objective was to assess the short-term effects of rGH therapy on growth and nutritional status in prepubertal patients with SRS.Design: Retrospective anal...

Introduction: CAH-X syndrome refers to a subset of Congenital adrenal hyperplasia (CAH) patients who display the hypermobility phenotype of Ehlers–Danlos syndrome (hEDS) due to the monoallelic/biallelic presence of a CYP21A2 deletion extending into the TNXB gene (chimeric TNXA/TNXB gene). To date, three different TNXA/TNXB chimeras have been described, CH-1 (presence of a TNXA-derived 120bp deletion in exon 35 of the <...

Introduction: Congenital adrenal hyperplasia (CAH) is an autosomal recessive disorder caused by impairment of one of the enzymes involved in the steroidogenesis pathway. CAH due to 21-hydroxylase deficiency (21-OHD) is attributed to mutations of the CYP21A2 gene and is distinguished into classic [salt wasting (SW), simple virilizing (SV)] and non-classic form. Herein we present a) the genetic investigation of 526 subjects with suspicion of 21-OHD in t...

Context: Mitochondrial encefalo-cardio-myopathy due to TMEM70 mutation is a very rare disease with frequent neonatal onset accompanied by laptic acidosis, hyperammonemia and 3-methylglutaconic aciduria.Case presentation: Patient DT presented at 7.5 years due to short stature (height -3.11 SDS, MPH -1.09 SDS; weight -4.41 SDS), in the context of a complex syndromic picture characterized by intrauterine growth retardation,...

IGF2, a major actor which stimulates feta growth, is located within the imprinted 11p15 region, and 11p paternal duplications are usually associated with Beckwith Wiedemann syndrome, a rare condition usually associated with overgrowth. The IGF type 1 receptor binds both IGF-I and IGF-II to promotes cell proliferation and growth, and the IGF1R gene is located at chromosome 15q. Patients with deletions or mutations of IGF1R usually present with intraut...

Neonatal diabetes (ND), classified as either permanent (PND) or transient (TND), occurs in 1/200,000 live births. In 50% cases of TND, remission presents within the first year of life, only to relapse later before puberty in 50% of cases. The most frequent cause is mutation of the 6q24 gene accompanied by mutations in heterozygosis of ABCC8 gene. 80% of mutations in this gene are in novo, due to autosomal recessive inheritance. Such cases respond to treatment with sulfonylurea...

Introduction: Mutations of the GKN gene are the most common cause of Mody diabetes. MODY II typically results in mildly elevated fasting blood sugar, without noticeable diabetes, maintaining good metabolic control without treatment.Clinical case: A 4.5 years old female infant, was referred due to presenting polyuria, polydipsia and fasting hyperglycemia of 126–130 mg/dl and 2 hours post-intake blood glucose level of 150–220 mg/dl. She was born ...

Background: Silver-Russell syndrome (SRS) is a clinically and genetically heterogeneous disorder, which remains a clinical diagnosis. The Netchine-Harbison clinical scoring system (NH-CSS), recently adopted by the first international consensus on SRS, defines SRS with at least 4 of the 6 following criteria: born SGA, postnatal growth retardation, relative macrocephaly at birth, prominent forehead, body asymmetry and early feeding difficulties. It is related to 11p15 ICR1 loss ...

Background: Paediatric Osteoporosis can be a devastating complication of Duchenne muscular dystrophy (DMD). Treatment with intravenous bisphosphonates such as pamidronate is currently the first treatment choice for paediatric osteoporosis of different etiologies.Objective and hypotheses: The aims of our study were i) to identify the proportion of boys with DMD with osteoporosis in our service and ii) to evaluate the side-effect profile of those treated w...

Background: Permanent neonatal diabetes (PND)with heterozygous mutations of KCNJ11, respond to treatment with sulphonylureas. We report a case of PND in a baby, and mother previously mis-diagnosed with Type 1 DM. Both were switched from insulin to oral sulphonylureas. We evaluate the response and evolution.Case report: A male newborn at 37 weeks’ gestation, with a birthweight 2750 g (40thC) and length 48 cm (40thC), was admitte...