ESPE Abstracts

Background: A national French registry was created to address the absence of data on final height and safety following long-term exposure to supraphysiological doses of growth hormone (GH) in children born small for gestational age (SGA).Methods: This observational, non-interventional study (NCT01578135) included GH-naïve and non-naïve SGA children treated with GH at 126 sites in France. The inclusion period wa...

Background: A one-month-old girl was referred to our unit for osteogenesis imperfecta (OI). She was the first child of non consanguineous parents. The father had no history of fracture. The mother, 28 years-old, presented with a severe OI, short adult height (140 cm), moderate scoliosis. She had more than 20 limb fractures, no vertebral fracture and bowing limbs without need of surgery. She received Bisphosphonates during 3 years until 12 years of age. Then sh...

Objective: Premature GH treatment discontinuation of SGA is usually linked to safety or ineffectiveness. However, this population is poorly addressed compared to those with final adult height (FAH). Authors investigated the journey of SGA prematurely discontinued Norditropin® treatment in a French real-life.Methods: Observational prospective ongoing study: 291 Norditropin®-treated SGA. Annual FU up to FAH. Descriptive anal...

Objective: Age and height at treatment start, target height, GH dose, and first year treatment response are among known criteria of GH deficiency (GHD) good responders (final adult height [FAH] >−2 standard deviation score [S.D.S.]) to GH treatment (GHT). The authors investigated whether the same criteria are applicable to SGA patients based on real-life ongoing French registry data.Methods: 291 SGA children treated with Norditro...

Objective: Bang et al. showed that Δ height and growth velocity (GV) the first year of treatment could be predictive factors of statural response in SGA (n=54). Poor responders showed GV <1SDS (55%) and Δ height <0.5SDS (45%). Moreover, Ortego et al. seems to confirm the suitability interest of KIGS mathematical model in a retrospective SGA cohort (n=103) showing that the percentage of good responders in the first year varies betwee...

Background: Prader-Willi syndrome is a rare genetic neurodevelopmental disorder caused by a paternal deficiency of maternally imprinted gene expression located in the chromosome 15q11-q13 region. Previous studies have demonstrated that several classes of neurodevelopmental disorders can be attributed to either over- or under-expression of specific genes that may lead to impairments in neuronal generation, differentiation, maturation and growth. Epigenetic chan...

Background/Aim: 25 to 40% of children with well-controlled X-linked hypophosphatemia (XLH) show linear growth failure, despite optimal conventional treatment (oral phosphate supplementation and active forms of vitamin D) with final height -2 SDS. Recombinant human growth hormone (rhGH) may be an adjuvant treatment of the growth retardation in these patients. Therefore, the main objective of this study was to describe how rhGH treatment improves final heigh...

Aim: The objective of the study was to determine bone mineralisation density in Turner syndrome (TS) from DSD life cohort, and to analyse the trabecular (lumbar spine = LS) and cortical bone (femoral neck = FN) mineralisation.Materials and Methods: This study was part of the DSD-LIFE study, a cross-sectional clinical outcome study of the BMD of TS adult patients from paediatric cohorts. BMD of the LS and FN were ...

Background: A one-month girl was referred to our unit for hypocalcemia. She was the first child of healthy non-consanguineous parents. Her family history was unremarkable except a miscarriage in the mother and oligoasthenospermia in the father that justified a medically assisted reproduction. She was born eutrophic at term after a pregnancy marked by a moderate gestational diabetes. On day 3, a routine neonatal screening revealed a severe asymptomatic hypocalcemia (total calci...

Background: Growth retardation affects more than 80% of patients with Noonan syndrome (NS; MIM#163950), one of the most common developmental disorders, but its origin remains poorly understood. We have demonstrated that mutations of the tyrosine phosphatase SHP2, that are responsible for half the cases of NS, impair the systemic production of Insulin-like growth factor 1 (IGF1), the biological mediator of GH acting on growth plate, through a hyperactivation of the Ras/Mitogen-...