ISSN 1662-4009 (online)

ey0015.5-4 | New genes and gene mutations | ESPEYB15

5.4 Mutations That Alter the Carboxy-Terminal-Propeptide Cleavage Site of the Chains of Type I Procollagen Are Associated With a Unique Osteogenesis Imperfecta Phenotype

T Cundy , M Dray , J Delahunt , JD Hald , B Langdahl , C Li , M Szybowska , S Mohammed , EL Duncan , AM McInerney-Leo , PG Wheeler , P Roschger , K Klaushofer , J Rai , M Weis , D Eyre , U Schwarze , PH Byers

To read the full abstract: J Bone Miner Res 2018;33(7):1260-1271Osteogenesis imperfecta (OI) is characterized by early-onset skeletal fragility, often short stature, blue sclerae and some other features. OI is caused by mutations in the two genes encoding type I collagen, namely COL1A1 and COL1A2. Some previous reports have indicated that when the mutation involves the C-propeptide cleavage site in e...

ey0020.3-5 | Advances in Clinical Practice | ESPEYB20

3.5. High bone mass disorders: New insights from connecting the clinic and the bench

DJM Bergen , A Maurizi , MM Formosa , GLK McDonald , A El-Gazzar , N Hassan , ML Brandi , JA Riancho , F Rivadeneira , E Ntzani , EL Duncan , CL Gregson , DP Kiel , MC Zillikens , L Sangiorgi , W Hogler , I Duran , O Makitie , W Van Hul , G Hendrickx

In Brief: This comprehensive review classifies the known high bone mass (HBM) disorders based on Gene Ontology (GO) nomenclature. The authors emphasize the importance of functional genomics in the discovery of new HBM genes and discuss strategies to improve understanding of the underlying pathogenic mechanisms and inform the development of therapeutic approaches.Commentary: HBM disorders are typically defined by a high areal bone marrow density (BMD) <em...