hrp0097rfc11.5 | GH and IGFs | ESPE2023

Influence of sirtuin 1 and fibroblast growth factor 21 levels on IGF-1 concentration in children with short stature of different etiology

Fedorczak Anna , Stawerska Renata , Lewiński Andrzej

Introduction: Short stature is one of the most common reasons for children presenting to an endocrinologist. In normal conditions, growth hormone (GH) stimulates the IGF-1 production in hepatocytes via the STAT5 signaling pathway. Approximately 40% of children diagnosed with idiopathic short stature (ISS), i.e. with normal GH secretion, have a reduced IGF-1 level for unknown reasons. Recently, it has been described that there are certain factors that reduce IG...

hrp0097fc10.5 | Fetal, neonatal endocrinology and metabolism (to include hypoglycaemia) & Multisystem endocrine disorders | ESPE2023

MCM4 deficiency causing Natural Killer and Glucocorticoid Deficiency with DNA repair defect (AR-NKGCD) - a large cases series from the Irish Traveller population

Fedorczak Anna , Reynolds Claire , Somers Eric , Ann Lynch Sally , Leahy Ronan , M O’Connell Susan

A new condition, unique to Irish Travellers, was first described clinically as autosomal recessive natural killer and glucocorticoid deficiency (AR-NKGCD) ORPHA:75391 in 2008 and was attributed to recessive founder variant in MCM4/PRKDC gene in 2012. Irish Travellers are an indigenous endogamous population numbering ~40,000 in the Republic of Ireland. AR-NKGCD is characterised by short stature, glucocorticoid and natural killer cell deficiency and is a disorder of DNA repair. ...