Searchable abstracts of presentations at key conferences on calcified tissues

ba0001pp41 | Bone biomechanics and quality | ECTS2013

Mechanical contrasts between osteons and interstitial bone measured by scanning acoustic microscopy

Fix Dmitri , Puchegger Stephan , Pilz-Allen Christine , Roschger Paul , Fratzl Peter , Weinkamer Richard

For a reliable assessment of bone’s material quality in a clinical environment, a fast way to measure the mechanical properties of bone is needed. The investigation of material heterogeneity and anisotropy resulting from bone remodeling and mineralization requires an imaging technique with micrometer resolution. Scanning acoustic microscopy (SAM) using high-frequency lenses allows measuring the stiffness of bone under wet conditions in a non-destructive way with this spat...

ba0003pp174 | Cell biology: osteocytes | ECTS2014

Structural analysis of tooth and jawbone in a type 2 diabetes mouse model

Repp Felix , Kollmannsberger Philip , Roschger Andreas , Roschger Paul , Wagermaier Wolfgang , Fratzl Peter , Weinkamer Richard

In type 2 diabetes mellitus (T2DM) patients, an increased fracture risk is observed, although the bone mineral density is even higher than in non-diabetic patients. This raises the question of the quality of the organic and inorganic matrix in bone1–3. T2DM is also known to forward dysfunctions in the development of soft tissues such as brittle skin due to cross-linking of the collagen or inflammation of the gingiva. For the latter, a possible influence of diab...

ba0005p37 | Bone biomechanics and quality | ECTS2016

Elemental composition of compact human bone correlated with the osteocyte network

Roschger Andreas , Roschger Paul , Repp Felix , Wagermaier Wolfgang , Weinkamer Richard , Klaushofer Klaus , Fratzl Peter

Spatial distributions of major and minor chemical elements are supposed to change during tissue maturation and due to bone diseases. Previous studies suggested that osteocytes have the ability to interact with the bone matrix of their environment. For this interaction osteocytes make use of the big inner surface of the osteocyte lacuno-canalicular network (OLCN) in which they are accommodated. The aim of this study was to quantify spatial correlations between the elemental com...

ba0003pp26 | Bone biomechanics and quality | ECTS2014

Structural analysis of tooth and jawbone in a type 2 diabetes mouse model

Pabisch Silvia , Yamaguchi Tsuguno , Koike Yasushi , Egashira Kenji , Kataoka Shinsuke , Wagermaier Wolfgang , Weinkamer Richard , Murakoshi Michiaki , Fratzl Peter

In type 2 diabetes mellitus (T2DM) patients, an increased fracture risk is observed, although the bone mineral density is even higher than in non-diabetic patients, which raises the question of the quality of the organic and inorganic matrix in bone1,2. T2DM is also known to favor inflammation of the gingiva and paradontosis in general. However, little is known about the mineral nano-architecture in the mandible and about the possible influence of diabetes. Using sy...