ESPE Abstracts

Background: Genetic and epigenetic alterations at the GNAS locus are responsible for the Gsα protein dysfunctions causing Pseudohypoparathyroidism (PHP), a heterogeneous disease characterized by multiple hormone resistances and AHO signs (short stature, obesity, round face, brachydactyly, subcutaneous ossifications and mental retardation). A clinical overlap among molecular subtypes of the disease (Ia, Ib, Ic and II) makes the current classification inadequate; furthermor...

Since the first description of pseudohypoparathyroidism (PHP), a remarkable clinical variability, which translates in several PHP subtypes, was observed. In 2016 a new classification of this group of diseases have been published by the European Network on PHP and related disorders, proposing “inactivating PTH/PTHrP signaling disorder” (iPPSD) as a new term that encompasses all the clinical entities, stressing the common mechanism responsible for all diseases. iPPSDs ...

A 17-year-old girl comes to our attention for a second opinion due to reduced bone mineralization. She has a family history of osteogenesis imperfecta: her mother and younger sister have a COL1A1 mutation. The girl never had any fractures, but considering the familiarity it was carried out a DEXA, showing a Z-score of -1.9 SDS at the femoral level and -2 SDS at the lumbar level; no fractures visible in the spine X-ray. The genetic analysis of COL1A1 was carried out, which came...

Temple syndrome is due to loss of methylation in the imprinted locus 14q32 and is characterised by low birth weight, hypotonia, short stature, early puberty. Adult height is approx -2.0SD. Other features are small hands and feet, premature birth, feeding difficulties, delayed milestones, mild learning difficulty, variable obesity. We report monozygotic twins diagnosed with Temple syndrome aged 13 yr. Twin 1 received GH for SGA and short stature from age 9.5yrs when his height ...

Objective: Neonatal hyperthyroidism is a severe but generally transient condition with a 2% prevalence in offspring of mothers affected by Graves' disease. It is caused by the transplacental passage of maternal anti-thyrotropin receptor stimulant antibodies (TRABs). Here we report the cases diagnosed at our centre between 2015-2019 in order to re-evaluate the diagnostic and therapeutic approach to this challenging neonatal thyroid alteration.<p cla...

Aggrecan, encoded by ACAN, is a major proteoglycan component in the extracellular matrix of the growth plate. At least 25 pathological ACAN mutations have been identified in patients with highly variable phenotypes of syndromic or non-syndromic short stature. A 6-year-old boy was referred to our Centre for short stature (height 103.60 cm, −3.14 SDS) in familial short stature. Mid-Parental target height was 161.15 cm (−2.38 SDS); His father (height 167.3 cm) is from...

Background and objective: Pseudohypoparathyroidism (PHP) refers to a heterogeneous group of rare endocrine disorders caused by genetic or epigenetic abnormalities affecting the GNAS locus. It is mainly characterized by resistance to PTH and TSH and a complete or partial Albright Hereditary Osteodistrophy (AHO) phenotype. Few data so far exist on LH/FSH, calcitonin and glucose-lipid metabolism involvement, as well as on neurocognitive aspects. The aim of this multicentre study ...

The patient was referred to our Centre for short stature. Weight and length at birth were within normal limits. In the neonatal period he showed jaundice and hypoglycemia. A reduced growth velocity was reported from the age of six months. At 15 months his length was 70 cm (−3.75 SDS), his weight 8.1 kg (−2.26 SDS). Parental target height was 167.6 cm (−1.38 SDS). He had normal psychomotor development. The examination showed macrocrania and nasal voice. Blood ...

GR and GT are diamniotic monochorial preterm twins (32 GA), both AGA (GR: W -1 SDS, L -1.5 SDS; GT: W and L 0 SDS), with normal karyotype and array-CGH on amniotic fluid, with no major complications associated to prematurity. At birth GT presented bilaterally cryptorchidism associated with micropenis, GR presented normal male genitalia. In the first year of life a severe growth deceleration in length (from -3SDS to -5 SDS) was observed, mainly after six months of life in both ...

Objectives: Preterm infants often present CH characterized by delayed TSH elevation. We describe the clinical and biochemical features and the evolution of CH in preterm infants with delayed TSH elevation, detected by the second screening for CH.Material and Methods: All preterm infants born between 2007 and 2014 negative to the first screening (b-TSH<10 mcU/ml) at 2–5 days of life and positive to the second screening at 12–33 days (b-TSH&#...