hrp0092fc2.3 | Bone, Growth Plate and Mineral Metabolism Session 1 | ESPE2019

Higher Dose of Burosumab is Needed for Treatment of Children with Severe Forms of X-Linked Hypophosphatemia

Zhukouskaya Volha , Audrain Christelle , Lambert Anne-Sophie , Kamenicky Peter , Adamsbaum Catherine , Nevoux Jerome , Chaussain Catherine , Wicart Philippe , Briot Karine , Di Rocco Federico , Colao Annamaria , Di Somma Carolina , Trabado Séverine , Prié Dominique , Rothenbuhler Anya , Linglart Agnès

Background/Aim: X-linked hypophosphatemia (XLH) is a rare disease caused by mutations in PHEX, leading to elevated FGF23 levels, hypophosphatemia and chronic renal phosphate wasting. Burosumab is a monoclonal antibody against anti-FGF23, which has been recently approved for treatment of XLH. Beyond clinical trials, little is known about its efficacy/safety in clinical practice which is the aim of study.Patients/Methods: ...

hrp0092p1-23 | Bone, Growth Plate and Mineral Metabolism | ESPE2019

Increased Prevalence of Overweight and Obesity and its Clinical Predictors in Children Affected by X-Linked Hypophosphatemia

Zhukouskaya Volha , Rothenbuhler Anya , Colao Annamaria , Di Somma Carolina , Kamenicky Peter , Trabado Séverine , Prié Dominique , Audrain Christelle , Barosi Anna , Kyheng Christèle , Lambert Anne-Sophie , Linglart Agnès

Background/Aim: X-linked hypophosphatemia (XLH) is a rare disease caused by inactivating mutations in the phosphate-regulating endopeptidase homolog X-linked (PHEX) gene, characterized by chronic hypophosphatemia. XLH children present with progressive skeletal deformities (leg bowing, waddling gait, poor growth and disproportional short stature), dental abscesses, and craniosynostosis. Most affected children have been treated so far with multiple dail...

hrp0097p1-519 | Growth and Syndromes | ESPE2023

Evaluation of Cognitive Profiles in a cohort of patients with Turner Syndrome.

Casalini Emilio , De Mori Letizia , Angelelli Alessia , Fava Daniela , Patti Giuseppa , Napoli Flavia , Elsa Maria Allegri Anna , Gastaldi Roberto , Tedesco Caterina , Passarella Tommaso , Pistorio Angela , Di Iorgi Natascia , Maghnie Mohamad

Background: Turner Syndrome (TS) is a chromosomopathy affecting 1 out of 2000-2500 live births. Although short stature, heart disease and ovarian dysgenesis are the best-known features, patients have variable cognitive impairments. Aim of this study is to analyze the cognitive profile of a cohort of patients enrolled between February 2018-March 2023.Methods: 49 TS patients [Group A: 45, X0 (n=13); Group B: mosai...

hrp0086p1-p802 | Syndromes: Mechanisms and Management P1 | ESPE2016

Cognitive Evaluation in Silver Russell Children

Patti Giuseppa , Malainho Virginie Coutinho , Dellatolas Georges , Dubern Beatrice , Doummar Diane , Netchine Irene

Background: Silver-Russell syndrome (SRS) is a heterogeneous syndrome characterized by severe intrauterine and postnatal growth retardation and typical dysmorphic features. The major abnormality is the hypomethylation of paternal allele of 11p15 imprinting centre region 1. In 10% of cases a maternal uniparental disomy of chromosome 7 (UPD7) can be detected. Speech delay and learning difficulties have been reported in these patients.Objective and hypothes...

hrp0097t15 | Section | ESPE2023

Cognitive evaluation in children with 21 Hydroxylase Deficiency (21-OHD)

Moracas Cristina , Lorenzo Ivan , Apuzzo Diletta , Santamaria Fabiana , Amitrano Marianna , Salerno Mariacarolina , Capalbo Donatella

Objective: The balance between hypocortisolism and hyperandrogenism in patients with classic congenital adrenal hyperplasia (CAH) treated with lifelong glucocorticoid (GC) is challenging. Glucocorticoid receptors are widely expressed in the brain; therefore it has been hypothesized that alterations in the exposure to glucocorticoids may affect cognitive ability in individuals with CAH. Only few studies have addressed this issue in children and results are scan...

hrp0092rfc12.5 | Growth and Syndromes (to include Turner syndrome) | ESPE2019

Cognitive and Neuroradiological Assessments in Silver Russell Patients

Patti Giuseppa , De Mori Letizia , Tortora Domenico , Savina Severino Maria , Calevo Mariagrazia , Morana Giovanni , Rossi Andrea , Casalini Emilio , Napoli Flavia , Di Iorgi Natascia , Maghnie Mohamad

Silver-Russell syndrome (SRS) is an epigenetic disorder characterized by severe intrauterine and postnatal growth retardation and typical dysmorphic features. The most common genetic abnormalities are 11p15 ICR1 loss of methylation, (11p15 LOM) and maternal uniparental disomy of chromosome 7 (mUPD7). There is little information on cognitive development in SRS patients and no neuroradiological studies are available so far. Global developmental delay and requirement for speech t...