Searchable abstracts of presentations at key conferences on calcified tissues

ba0006p023 | (1) | ICCBH2017

Tracking differences in morphology and regulation between the spine and long bones in a pig model

Raimann Adalbert , Javanmardi Alireza , Egerbacher Monika , Haeusler Gabriele

Objectives: The skeleton is not a single functional unit but consists of different, well-organized and mineralized compartments with specific functions, developmental aspects and regulations. Differences in the regulation of spinal and long bone elongation are mirrored clinically by the age course in body proportions. Whereas growth plates (GPs) in long bones can easily be discriminated, vertebral GPs are part of the cartilaginous endplate, which typically shows important spec...

ba0004p109 | (1) | ICCBH2015

Effects of inorganic phosphate and FGF23 on C2C12 myoblast cells

Raimann Adalbert , Dangl Alexander , Sagmeister Susanne , Greber-Platzer Susanne , Haeusler Gabriele

Objectives: Dysregulation of systemic phosphate homeostasis is often associated with impairment of musculoskeletal tissue function. Many factors such as calcium levels and dysegulated endocrine mechanisms are thought to contribute. Inorganic phosphate and FGF23 have been shown to act via similar signaling pathways in several cell types but we are not aware of any detailed investigations into their effect on the differentiation and viability of skeletal muscle cells. W...

ba0005p269 | Muscle, physical activity and bone | ECTS2016

Effects of inorganic phosphate and FGF23 on C2C12 myoblast cells

Raimann Adalbert , Dangl Alexander , Javanmardi Alireza , Ertl Alexandra , Egerbacher Monika , Greber-Platzer Susanne , Haeusler Gabriele

Background: Disturbance of systemic phosphate homeostasis is often associated with musculoskeletal dysfunction. Multiple factors related to the underlying condition such as calcium levels and endocrine mechanisms are thought to contribute. Distinct effects of inorganic phosphate itself as well as its main regulator FGF23 by activation of similar pathways have been shown in several cell types. We are not aware of any detailed investigations into their effect on the differentiat...

ba0007p219 | (1) | ICCBH2019

Comparison of cell separation methods, using relative expression of specific growth plate zone markers in a pig model

Javanmardi Alireza , Raimann Adalbert , Egerbacher Monika , Sagmeister Susanne , Gleiss Andreas , Haeusler Gabriele

Objective: Linear growth is achieved by enchondral ossification in epiphyseal growth plates (GP) of long bones. These highly organized cartilaginous tissues contain chondrocytes of all differentiational stages classified in 3–5 specific zones. Due to their discrete characteristics, distinct analysis of each zone is essential in basic GP research. While the efficiency of zonal separation is therefore highly influencing on study results, comparative data on commonly used me...

ba0004p108 | (1) | ICCBH2015

Unique occurrence of long bone fragility with cranial hyperostosis: Searching for the genetic culprit

Raimann Adalbert , Wintergerst Uwe , Roschger Paul , Stelzl Rainer , Biedermann Rainer , Rasse Michael , Fratzl-Zelman Nadja , Laccone Franco , Klaushofer Klaus , Haeusler Gabriele

Background: Systemic alterations in Runx2 expression have been shown to affect flat and long bone formation differently: Inactivating mutations cause low-turnover bone disease and patent fontanels in cleidocranial dysplasia, while overexpressing mutations cause metaphyseal dysplasia with maxillary hypoplasia and brachydactyly. The two conditions have inverse skeletal phenotypes. We know of no descriptions of these disorders in a patient without duplications or mutations of Run...

ba0007p79 | (1) | ICCBH2019

Novel imaging approaches to the quantification of musculoskeletal alterations in X-linked hypophosphatemic rickets (XLH)

Raimann Adalbert , Mehany Sarah N , Feil Patricia , Weber Michael , Boni-Mikats Andrea , Klepochova Radka , Krssak Martin , Pietschmann Peter , Haeusler Gabriele , Schneider Johannes , Raum Kay , Patsch Janina

Objectives: X-linked hypophosphatemia (XLH) is a rare genetic disorder of phosphate metabolism caused by mutations in the PHEX gene. This pilot study aims to apply novel imaging techniques to asses the musculoskeletal phenotype of XLH patients by bidirectional axial transmission (BDAT) ultrasound, magnetic resonance spectroscopy (MRS) and high resolution peripheral quantitative computed tomography (HR-pQCT).Methods: BDAT bone ultrasound of the radius and...