ESPE Abstracts

Background and Aim: Pediatric patients with germline mutations in the phosphatase and tensin homolog (Pten) gene frequently develop aberrant adipose tissue growth called lipomas. In severe cases, recurrent lipoma formation can have adverse effects on organ function and quality of life. Due to the lack of understanding the basis of lipoma development, no systemic treatment options are available. We therefore aimed to characterize an already described lipoma bea...

Background: Bone development and remodeling are controlled by the phosphoinositid-3-kinase (PI3K) signaling pathway. We investigated the effects of downregulation of phosphatase and tensin homolog (Pten), a negative regulator of PI3K signaling, in osteoprogenitor cells.Methods: Femura, tibiae and bone marrow stromal cells (BMSCs) from mice with Cre-inducible Pten knockdown in cells expressing the transcription factor Ost...

Introduction: Congenital adrenal hyperplasia is the most common cause of primary adrenal insufficiency. It is a rare monogenic recessive disorder. In African setting in absence of neonatal screening, the diagnosis is still late, based on a clinical approach. During this clinical enquiry, information form past history or pedigree of the patient are of a huge importance and may revealed surprisesPatients and methods: In th...

Background: IGF1R is a keystone of foetal growth regulation by mediating the effects of both IGF-I and IGF-II. Recently the first clinical cohort of patients carrying an IGF1R defect has been reported from which a clinical score was established for diagnosis. Since no external validation of this score is available we assessed it in a large cohort of patients with identified IGF1R defects. Furthermore we aim at setting-up a functional test to ...

The Silver-Russel syndrome (SRS) is characterized by an intrauterine growth retardation accompanied by postnatal growth deficiency. Affected individuals typically have proportionately short statue, finger deformities as well as typical facial features. About 10% of individuals with SRS have maternal uniparental disomy for chromosome 7 (UPD7) and 35%–50% showed hypomethylation of the parental imprinting center region 1 (ICR1) of chromosome 11p15.5. In the recent past also ...

Background: Disorders of sex genitalia are a large group of genetic disorders whose management is still unaffordable in many countries in sub Saharan Africa. In Cameroon, although many collaborative initiatives of management are developed, little data are available.Objectives: Describe epidemiological clinical, aetiologies and management aspect of DSD in a developing country.Patients and methods: This is a 5 years retrospective stu...

Background: Partial androgen insensitivity syndromes (PAIS) are rare 46,XY DSD (disorder of sex development).Objective and hypotheses: Three families with PAIS (six patients) are reported, focusing on their phenotype and treatment depending on sex of rearing. Biological investigations and surgical management are described.Method: Between 2009 and 2015 a consultation for uro-genital malformations in pediatric patients was set up in ...

Introduction: HbA1C goals are rarely achieved in children with Type 1 diabetes (T1D) except at the cost of increased hypoglycaemia episodes. The Diabeloop Hybrid Closed-Loop system improves time in range and glycemic control in adults. However, the efficacy and safety of the system had not yet been evaluated in children. Our objective was to evaluate the safety and efficiency of the Diabeloop hybrid closed-loop system in prepubescent children (DBL4K).<p cl...

Obesity presents a major worldwide challenge, due to its numerous, severe adverse effects on health. This leads to a necessity to further investigate the mechanisms underlying lipid accumulation. The adipocytokine leptin may contribute to this process. While there already has been thorough research into central leptin action, deepening our understanding of leptin’s effects on whole-body energy homeostasis, relatively little is known about its auto- and paracrine effects....

Background: Wiedemann Steinert Syndrome (WSS) is characterized by distinctive facial features (hypertelorism, thick eyebrows, long philtrum, broad nasal bridge), growth retardation, and intellectual disability of varying degrees. Affected individuals are often born small for their gestational age and have generalized hypertrichosis. Some have growth hormone deficiency, usually partial with normal pituitary MRI. The disease is caused by autosomal dominant varia...