ESPE Abstracts

Introduction: There are few published large-cohort studies examining the long-term impact of GNRH analogue treatment for precocious puberty (PP) on fertility in women. The PREFER study analysed fertility in a large cohort of women treated during childhood for PP with triptorelin.Methods: PREFER was a longitudinal, descriptive, non-comparative, epidemiological study conducted in 23 centres in France between February 2007 and November 2009. Women aged &#88...

Background: Patients with mutations of the short-stature-homeobox-containing (SHOX) gene likely have impaired growth, with or without a spectrum of skeletal anomalies consistent with mesomelic skeletal dysplasia. In a multinational clinical trial, GH has been shown to increase growth rate and final height (FH).Objective and hypotheses: The aim of this analysis was to describe FH outcome after GH treatment in an observational setting (Genetics and Neuroen...

Introduction: Non-communicable diseases are recognized as a major cause of morbidity in low and middle-income countries (LMICs). There are 21 francophone countries (>100 million speak French) in Sub-Saharan Africa (FSSA). We identified only 19 pediatric endocrinologists in FSSA (37% in Cameroon and Senegal) mostly trained in France or through the successful anglophone “Paediatric Endocrine Training Centers for (West) Africa” (PETC[W]A) offered i...

Background: A thirty-four months old boy was referred for precocious puberty. He was the first child of healthy non-consanguineous parents. His family history was unremarkable. He had no exposure to oestrogenic endocrine-disrupting chemicals. He had presented secondary sexual characteristics for five months: pubic hair, enlarged testicular volume to 6 ml (Tanner stage P2A1G2) and enlarged penile size. He had a deepening voice and aggressive behavior. He had a significant growt...

Background: Loss of function mutations in KISS1R, which encodes kisspeptin receptor have been reported in very few patients with normosmic isolated hypogonadotropic hypogonadism (nIHH).Objective and hypotheses: To describe the phenotype of the nIHH female patient with a novel homozygous KISS1R mutation and to characterize functionally this mutation. The patient was a 28 year-old Senegalese woman with primary amenorrhea. She was the seco...

Background: Between the 6000 monogenic disorders, only few are due to a single mutation. Recently, a specific mutation has been described in TUBB3, encoding tubulin beta 3, in the association of Moebius syndrome (MS) and Kallmann syndrome (KS). MS is a congenital paralysis of eye and face’s muscles and can be caused by mutations of TUBB3. KS combines hypogonadotropic hypogonadism and anosmia.Objective and hypotheses: The combination of these two syn...

Background: DMXL2 haploinsufficiency in humans was recently shown to cause the polyendocrine-polyneuropathia syndrome including a GnRH deficiency (OMIM #616113). The neuronal deletion of Dmxl2 in mice (Nes::Cre;Dmxl2loxp/wt) caused infertility and gonadotropic deficiency (Plos Biology 9 e1001952, 2014). Dmxl2 encodes rabconnectin-3α (rbcn-3α), which participates in the control of the V-ATPase activity an...

Congenital hypogonadotropic hypogonadism (CHH) is a rare condition caused by a dysfunction of the GnRH Axis. The clinical variability of the disease is accompanied by genetic heterogeneity. Indeed, more than 40 genes are implicated in the pathogenesis of this condition. The main goal of this present study was to characterize genetic defects in a large cohort of French CHH patients using a targeted NGS panel.Patients: a cohort of 120 unrelated patients (7...

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