ESPE Abstracts

It is known that almost 180 million children in the world have stunted growth. Most of these children live in eastern and central Africa and in South-central Asia. Among multiple factors causing stunted growth in the developing world, malnutrition is the most important one. On the other hand, reduced caloric intake is also a cause of poor statural growth in developed countries.Mammals, including humans, exposed to malnutrition experience poor bone growth...

Nuclear Factor kappa B (NF-κB) is a group of seven transcription factors, including p65 (RelA), c-Rel, RelB, p50/p105 (NF-κB1), and p52/p100 (NF-κB2). Upon activation by a wide variety of stimuli, NF-κB translocates to the nucleus, where it modulates the expression of target genes involved in cell growth, survival, and death.Previous evidence indicates that NF-κB regulates bone growth and development. Mice deficient in both the N...

Introduction and Aims: Autosomal dominant hypocalcemia or type V Bartter syndrome is characterized by hypocalcemia, low parathyroid hormone (PTH), and calciuria, which marks its prognosis due to the risk of nephrocalcinosis. It is caused by activating mutations in the calcium-sensing receptor (CASR) gene (3q21.1), which is expressed in the parathyroid and renal tubules, causing salt and potassium loss, due to the inhibition of the ROMK and NKCC2 channels. We s...

Introduction: Le diabète de type 1 est l’endocrinopathie la plus fréquente chez l’enfant. Son incidence est en nette progression dans le monde. L’enfant diabétique nécessite une hygiène de vie adaptée et le suivi par une équipe pluridisciplinaire composée de pédiatre spécialiste en diabétologie, psychologue, diététicien, infirmier spécialisé.Objectif: Determiner les...

Background: The clinical phenotype of the chromosome 2q31 deletion syndrome consists of a variety of limb abnormalities and other skeletal defects, craniofacial dysmorhic features, developmental delay, and other not specific congenital anomalies.Objective and hypotheses: To describe a patient with 2q31.1 microdeletion syndrome and short stature, diagnosed with GH deficiency.Method: We describe a 5 years and 4 months girl with devel...

Background: Septo-optic dysplasia (SOD) is a rare congenital anomaly, clinically heterogeneous, combining optic nerve and pituitary gland hypoplasia, midline abnormalities of the brain, including absence of the corpus callosum and septum pellucidum. The diagnosis is made when two or more features of the classic triad are present. HESX1, SOX2, SOX3, FGF8, FGFR1, PROKR1, SHH, are implicated in the etiology of SOD.Objective and hypotheses: Description of a ...

Background: DLK1 (PREF1) is a key inhibitor of adipogenesis and adipocyte differentiation. Adipose tissue expansion depends on adequate adipocyte differentiation. However, whether lower DLK1 expression facilitates adipose tissue expansion following fetal growth restriction is so far unknown.Objective and hypotheses: To study the expression of DLK1 in the adipose tissue of prenatally growth-restricted rats and its relat...

Of the 67 included DSD patients, 33% were HSCs. 68% women and 32% men, with a total concordance between legal sex, current gender and chromosomal sex. Median age: 10.5 years, IQR 8-14. The most frequent clinical form was non-classical (NC) 45.5%, followed by classical with saline loss (CPS) 41%. The distribution of each clinical form according to the karyotype is significant (P = 0.013), the most frequent with XY karyotype is CPS and in NC forms all cases are XX. Med...

Background: IGF1 is essential for pre and postnatal growth. Mutations in IGF1 receptor (IGF1R) gene have been described in patients with intrauterine growth retardation and other anomalies.Objective and hypotheses: To study IGF1R gene in small for gestational age (SGA) patients with short stature and correlate the results with clinical presentation and response to rhGH treatment.Method: Longitudinal retrospective study of 69 SGA pa...

Background: We report clinical and molecular cytogenetic characterization of a 13-year-7-month-old boy with a Sotos-like phenotype and de novo NFIX deletions and review the literature.Result: A whole exome sequencing revealed in the present patient with unique clinical phenotypes a de novo frameshift mutation c.570-573delATCA (p.S191Ifs*19) in NFIX gene in 19p13.2.Discussion: The p...