ESPE Yearbook of Paediatric Endocrinology

In brief: This article describes the functionalities of the Global ALPL gene variant classification project, which aims to reclassify variants of uncertain significance (VUS) in the ALPL gene and to continuously assess and update genetic, phenotypic, and functional variant information in hypophosphatasia.Commentary: Hypophosphatasia (HPP) is a rare genetic disorder caused by loss-of-function mutations in the alkaline phosphatase ( A...

In brief: This observational analysis, based on data from the Global Hypophosphatasia Registry, reports the clinical profiles, prior to initiation of asfotase alfa enzyme replacement therapy, in a large cohort of children with hypophosphatasia (n=151), by age (<6 months vs 6 months to 18 years) and geographic region (USA/Canada, Europe, and Japan).Commentary: Hypophosphatasia (HPP) is a rare genetic disorder caused by loss-of-function mutations in th...

Science Advances, 2021,7:eabj5018 doi: 10.1126/sciadv.abj5018Brief Summary: The authors developed a liver-targeting adeno-associated virus (AAV) vector carrying C-terminal FGF23 (cFGF23) to inhibit FGF23 signalling in a mouse model for X-linked hypophosphataemic rickets (hyp-duk mice). They were able to show that a single injection of AAV cFGF23 rescued the hyp-duk phenotype.<p class="abst...