hrp0086p2-p641 | Growth P2 | ESPE2016

Hypochondroplasia (HC) Treatment with rGH: Actualization of Pilot Observations

Bougneres Pierre , Linglart Agnes

Background: In patients with HC due to N540K FGFR3 mutations, adult height ranges 138–155 cm (men) and 128–145 cm in women. We have previously reported that a mean 0.075 μg/k.d rGH dose could allow a gain of 1.9 S.D. of height over 6.1 year and could reduce body disproportion in 6 young patients (Journal of Pediatrics 2012).Objectives: To confirm these results and extend observation of rGH effects.<p class="abst...

hrp0086fc10.4 | Perinatal Endocrinology | ESPE2016

In Utero and Postnatal Consequences of Psychological Maternal Stress have Different Effects On Longevity: Studies in World War 1 Orphans

Todd Nicolas , Valleron Alain-Jacques , Bougneres Pierre

Background: Early life stress (ELS) are known to have a deleterious impact on health, but their potential long-term consequences on mortality remain to be assessed. World War 1 (WW1) has caused major stress and bereavement to millions of European mothers.Objectives and hypotheses: To compare the effects of a maternal stress occurring during intra uterine or in postnatal life upon long-term mortality.Patients: Thanks to recently dig...

hrp0086fc14.3 | Growth : Mechanisms | ESPE2016

CG at the Methylation IGF1 Locus is an Epigenetic Predictor of GH Sensitivity

Ouni Myriam , Castell Anne Laure , Bougneres Pierre

Background: The growth and IGF1 responses to GH treatment show a large variation across children with idiopathic short stature (ISS). Compliance and GH regimens are important determinants. The d3 variant of the GH receptor (GHR) is a significant genetic predictor. The role of individual epigenetics had not been studied. The IGF1 locus is an attractive candidate where CG methylation could influence GH action.Objectives: To study GH effects on a) IGF1 gene...

hrp0086fc14.2 | Growth : Mechanisms | ESPE2016

CG Methylation at the IGF1 P2 Promoter is a Major Epigenetic Determinant of Postnatal, Not Foetal Growth

Ouni Myriam , Le Stunff Catherine , Castell Anne Laure , Bougneres Pierre

Background: The height of children has a Gaussian distribution. Genetics explain an important part of individual variability, but no single genomic variant accounts for more than 0.3% of height variance. At the interface of genetics and environment, epigenetics is expected to contribute to phenotypic variability. IGF1 is an attractive locus to test this hypothesis.Objectives: To quantify the effect of CG methylation of IGF1 promoters on height.<p cla...

hrp0086p1-p42 | Adrenal P1 | ESPE2016

Acute Lysis of a Giant Pediatric Adrenal Cortical Carcinoma Following One Dose of op’DDD

Motte Emmanuelle , Rothenbuhler Anya , Durand Philippe , Bougneres Pierre

Background: op’DDD can be used in adrenal cortical carcinoma (ACC) i) when surgery is impossible ii) or as an adjunct to surgery when local extension or metastases are present.Objectives and hypotheses: To report the unexpected spectacular effects of op’DDD in an unoperable ACC.Patient and results: A 3-year-old black African girl presented in poor shape with a 2-year history of pubic hair, clitoromegaly, abdominal distens...

hrp0086p2-p61 | Adrenal P2 | ESPE2016

Severe Neonatal Cushing Syndrome with Multi-Organ McCune Albright Manifestations

Sophie Lambert Anne , Rothenbuhler Anya , Durand Philippe , Bougneres Pierre

Background: Reports of Cushing syndrome during the first month of life are rare. Mortality is high, despite medical (metyrapone) or surgical (adrenalectomy) treatment.Objectives: To report a new neonatal case of Cushing due to McCuneAlbright syndrome (MAS).Patient and results: Although a healthy baby at age 10 days, a newborn girl presented with sudden manifestations within the following 2 weeks: facial and truncal plethora, severe...

hrp0086p1-p121 | Bone &amp; Mineral Metabolism P1 | ESPE2016

Computer-assisted Diagnosis of Dyschondrosteosis Based on Skeletal X-ray Geometry

Filippo Gianpaolo De , Quintus Fabien , Hejblum Gilles , Bougneres Pierre

Background: Bone X-rays provide the main diagnostic parameters for chondrodysplasia, including common dyschondrosteosis (DC). Skeleton is usually studied piece by piece by visual analysis in search of characteristic signs. The phenotypic spectrum of DC is large. Indeed, children who have seemingly idiopathic short stature (ISS) may have subtle forms of DC that can be unrecognized.Objectives: Provide a user-friendly computer-assisted program that facilita...

hrp0086p1-p359 | Gonads &amp; DSD P1 | ESPE2016

Feasibility Study for Avoiding Early Surgery in Girls with 21-Hydroxylase Deficiency (21OHD)

Bougneres Pierre , Bouvattier Claire , Cartigny Maryse , Michala Lina

Background: Genital surgery in disorders of sex development (DSD) has been an area of debate over the past 20 years. One can question and even defy the routine practice to surgically align genitalia to the sex of rearing, as early as possible. However, despite multitude of data showing detrimental effects to genital sensation and sexuality, few patients born with ambiguous genitalia have remained unoperated into adolescence.Objective and hypotheses: To a...

hrp0084p1-109 | Perinatal | ESPE2015

Continuous Subcutaneous Infusion of Recombinant LH and FSH During Early Infancy Promotes Testicular Descent in Congenital Hypogonadotropic Hypogonadism

Lambert Anne Sophie , Lucchini Philippe , Bouvattier Claire , Bougneres Pierre

Context: Cryptorchidism, a common consequence of HH, is treated with orchiopexy. We previously observed that continuous subcutaneous infusion of gonadotropins restored normal serum testosterone and inhibin B concentrations in two infants with hypogonadotropic hypogonadism (HH) and was associated with testicular descent in one.Objective: Test if subcutaneous gonadotropin infusion within the first year of life can allow testicular descent in eight boys wit...

hrp0086fc1.5 | Adrenals | ESPE2016

AAV Gene Therapy of 21-Hydroxylase Deficiency (21OHD) in Cyp21−/− mice

Perdomini Morgane , Santos Christine Menguy-Dos , Goumeaux Cyndie , Guidoux Sylvie , Pourcher Guillaume , Aubourg Patrick , Bougneres Pierre

Background: Despite current treatment, girls and women with severe forms of 21OHD are exposed lifelong to a chronic excess of androgens and the secondary effects of suppressive corticoids, which make gene therapy (GT) an option to be explored.Objective: To evaluate the effect of human CYP21 gene transfer mediated by adeno-associated virus (AAV) in a Cyp21−/− mouse model.Methods: 17 adult <em...