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hrp0092fc6.1 | Bone, Growth Plate and Mineral Metabolism Session 2 | ESPE2019

Bone Tissue Characterization of a Mouse Model of Atypical Type VI Osteogenesis Imperfecta Reveals Hypermineralization of the Bone Matrix, Elevated Osteocyte Lacunardensity and Altered Vascularity

Hedjazi Ghazal , Guterman-Ram Gali , Blouin Stéphane , Roschger Paul , Klaushofer Klaus , Fratzl-Zelman Nadja , Marini Joan C

Objectives: Osteogenesis imperfecta (OI) is an extremely heterogeneous connective tissue disorder characterized by low bone mass, which together with altered bone matrix properties leads to skeletal fragility. Due to the wide range of symptoms, the pathophysiology of the OI is not fully understood. Null mutations in SERPINF1, encoding the potent antiangiogenic factor PEDF, cause type VI OI with excessive osteoid formation, abnormal osteoblast-osteocyt...

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hrp0092rfc15.5 | Late Breaking Abstracts | ESPE2019

De novo Missense Mutation in SP7 in a Patient with Cranial Hyperostosis, Long Bone Fragility, and Increased Osteoblast Number

Raimann Adalbert , Lui Julian C , Roschger Paul , Wintergerst Uwe , Klaushofer Klaus , Stelzl Robert , Biedermann Rainer , Laccone Franco , Fratzl-Zelman Nadja , Hojo Hironori , Dong Lijin , Jee Youn Hee , Baron Jeffrey , Haeusler Gabriele

Background: Sp7, also known as Osterix (Osx), is a zinc-finger transcription factor, essential for osteoblast differentiation and bone formation. While bone formation is absent in Osx knockout mice, human loss of function mutations lead to impaired bone formation and cause recessive osteogenesis imperfecta, type XII (OMIM 613849 ).Case: The 5-year-old son of non-consanguineous parents presented with multiple long bone fr...

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ESPE Abstracts

Bone Tissue Characterization of a Mouse Model of Atypical Type VI Osteogenesis Imperfecta Reveals Hypermineralization of the Bone Matrix, Elevated Osteocyte Lacunardensity and Altered Vascularity

De novo Missense Mutation in SP7 in a Patient with Cranial Hyperostosis, Long Bone Fragility, and Increased Osteoblast Number

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