hrp0097t18 | Section | ESPE2023

Pubertal origin of growth retardation in Inborn Errors of Protein Metabolism: A longitudinal cohort study

Busiah Kanetee , Roda Célina , Crosnier Anne-Sophie , Brassier Anaïs , Wicker Camille , Ottolenghi Chris , Pontoizeau Clément , Souberbielle Jean-Claude , Piketty Marie-Liesse , Perin Laurence , Le Bouc Yves , Arnoux Jean-Baptiste , Imbard Apolline , Netchine Irène , de Lonlay Pascale

Background: Inherited amino-acid metabolism disorders (IAAMDs) require lifelong restriction of natural dietary proteins. Nutritional amino-acid mixtures (AMM) free of the poorly metabolised amino-acids by the enzyme block, improve nutrition. An adequate protein intake is crucial to ensure normal body development, notably during puberty. We aimed to: 1/ describe growth and puberty in IAAMDs 2/ investigate associations linking height, IGF1 and IGFBP3 with AAM an...