ESPE Abstracts

Background: Hyperinsulinaemic hypoglycaemia (HH) can be transient or permanent. Transient HH (spontaneous resolution of HH within few weeks) is associated with intrauterine growth restriction, maternal diabetes, erythroblastosis fetalis etc. Transient HH has not been reported with ABCC8/KCNJ11 mutations, which are the commonest cause of HH.Aim: Molecular characterisation of a novel ABCC8 mutation associated with a transient HH phenotype seen in a family ...

Background: Juvenile Paget’s disease is a rare autosomal recessive osteopathy. Patients presenting in infancy develop severe bone deformities and may never walk. Bisphosphonate therapy is used to decrease bone turnover and it has generally good responses in milder forms of the disease. However there is no long-term experience of bisphosphonates in severe infantile forms.Case report: A 9 month-old boy was referred to our clinic for bone deformities. ...

Background: 5α-reductase-deficiency is an autosomal recessive disorder with clinical spectrum ranges from a male phenotype with hypospadias to a female phenotype. Many different mutations of SRD5A2 gene has been described in affected patients and clinical signs can vary depending on the degree of enzyme deficiency.Case presentation: 14-years-old girl admitted to our clinic because of feeling as a boy since 8-years-old. Parents were first degree cous...

Background: Congenital hyperinsulinism (CHI) is a heterogenous disorder characterized by hyperinsulinaemic hypoglycaemia, and may present in the neonatal period in severe forms of the disease. Molecular defects involving eight genes has been described so far. Herein we report a case of severe, diazoxide unresponsive CHI caused by two homozygous novel missense mutations in the KCNJ11 gene.Case report: An 8-day old girl was referred for hyperinsul...

Background: Primary ovarian failure (POF) is a major cause of female infertility. POF is characterized by amenorrhea, hypo-estrogenism, and elevated gonadotrophin levels. In POF disorder, several genetic alterations have been described, however in most of the patients the etiology of this disorder remains unknown.Objective and hypotheses: To identify new genes implicated in the development of POF using whole-exome sequencing (WES)....

Background: Severe forms of 46,XY DSD with uncertain sex may have a family history (FH) in ~15–20% of cases. On the other side of the DSD spectrum, data regarding isolated hypospadias is sparse and a FH of genital malformation is thought to be less frequent.Objective and hypotheses: The aims of the study were i) to determine the frequency of genital abnormalities in families of isolated hypospadiac boys, ii) to determine whether there is a particula...

Introduction: Data on BP in children with classic congenital adrenal hyperplasia (CAH) is inconsistent.Aim: To assess the trend in BP throughout childhood using data from the International CAH registry and compare this to normative data from the American Academy of Paediatrics (AAP).Method: This retrospective multi-centre study included 37 centres from 20 countries. BP data was ana...

Introduction: Progressive pseudorheumatoid dysplasia (PPRD) is a rare genetic bone disorder characterised by the progressive degeneration of articular cartilage leading to pain, stiffness, joint enlargement and short stature. PPRD occurs due to a mutation in cellular communication network factor 6 (CCN6)/Wnt1-inducible signalling protein 3 (WISP3) gene, encoding a 354 amino acid signalling factor involved in BMP/WNT signalling and mitochondri...

Background: Monogenic nonsyndromic obesity is severe, has early-onset with abnormal eating behaviour and endocrine disorders. Leptin(LEP), Leptin receptor (LEPR), and Melanocortin 4 receptor (MC4R) gene mutations are identidied as the cause of early-onset childhood obesity. These pathogenic mutations are rare and have been described in less than 50 obese individuals worldwide, from consanguinous families.A cohort of Pakistani obese children from consanguineous...

Introduction: Laron Syndrome (LS) or primary growth hormone (GH) insensitivity is an autosomal recessive disorder due to variants in the GH-receptor (GHR) gene or to post-receptor defects. LS prevalence is estimated 1-9/1000000. We report a case of LS with a missense variant in the GHR gene not previously described.Case: female, Turkish, was referred to our clinic for short stature. Born at term, birth ...