@article{SlezakSlezakHartingeretal., author = {Slezak, Paul and Slezak, Cyrill and Hartinger, Joachim and Teuschl, Andreas and N{\"u}rnberger, Sylvia and Redl, Heinz and Mittermayr, Rainer}, title = {A Low Cost Implantation Model in the Rat That Allows a Spatial Assessment of Angiogenesis.}, series = {Frontiers in Bioengineering and Biotechnology}, journal = {Frontiers in Bioengineering and Biotechnology}, abstract = {There is continual demand for animal models that allow a quantitative assessment of angiogenic properties of biomaterials, therapies, and pharmaceuticals. In its simplest form, this is done by subcutaneous material implantation and subsequent vessel counting which usually omits spatial data. We have refined an implantation model and paired it with a computational analytic routine which outputs not only vessel count but also vessel density, distribution, and vessel penetration depth, that relies on a centric vessel as a reference point. We have successfully validated our model by characterizing the angiogenic potential of a fibrin matrix in conjunction with recombinant human vascular endothelial growth factor (rhVEGF165). The inferior epigastric vascular pedicles of rats were sheathed with silicone tubes, which were subsequently filled with 0.2 ml of fibrin and different doses of rhVEGF165, centrically embedding the vessels. Over 4 weeks, tissue samples were harvested and subsequently immunohistologically stained and computationally analyzed. The model was able to detect variations over the angiogenic potentials of growth factor spiked fibrin matrices. Adding 20 ng of rhVEGF165 resulted in a significant increase in vasculature while 200 ng of rhVEGF165 did not improve vascular growth. Vascularized tissue volume increased during the first week and vascular density increased during the second week. Total vessel count increased significantly and exhibited a peak after 2 weeks which was followed by a resorption of vasculature by week 4. In summary, a simple implantation model to study in vivo vascularization with only a minimal workload attached was enhanced to include morphologic data of the emerging vascular tree.}, subject = {Tissue Engineering}, language = {en} } @article{HeherMaleinerPruelleretal., author = {Heher, Philipp and Maleiner, Babette and Pr{\"u}ller, Johanna and Teuschl, Andreas and Kollmitzer, Josef and Monforte Vila, Xavier and Wolbank, Susanne and Redl, Heinz and R{\"u}nzler, Dominik and Fuchs, Christiane}, title = {A novel bioreactor for the generation of highly aligned 3D skeletal muscle-like constructs through orientation of fibrin via application of static strain}, series = {Acta Biomaterialia}, journal = {Acta Biomaterialia}, subject = {Bioreactor}, language = {en} } @misc{HeherFuchsPruelleretal., author = {Heher, Philipp and Fuchs, Christiane and Pr{\"u}ller, Johanna and Babette, Maleiner and R{\"u}nzler, Dominik and Redl, Heinz}, title = {A novel bioreactor for engineering skeletal muscle-like tissue in a strained fibrin scaffold}, subject = {Bioreactor}, language = {en} } @article{TeuschlAignerHohlriederetal., author = {Teuschl, Andreas and Aigner, Elmar and Hohlrieder, Martin and Cicha, Klaus and Stampfl, J{\"u}rgen and Redl, Heinz}, title = {Stimulation of ligament tissue formation on a silk scaffold with mechanical loading using a custom-made bioreactor system}, series = {Journal of Tissue Engineering and Regenerative Medicine}, volume = {1}, journal = {Journal of Tissue Engineering and Regenerative Medicine}, number = {6}, pages = {51 -- 51}, subject = {Ligament}, language = {en} } @article{RiederWeihsWeidingeretal., author = {Rieder, Bernhard and Weihs, Anna and Weidinger, Adelheid and Sczwarc, Dorota and N{\"u}rnberger, Sylvia and Redl, Heinz and R{\"u}nzler, Dominik and Huber-Gries, Carina and Teuschl, Andreas}, title = {Hydrostatic pressure-generated reactive oxygen species induce osteoarthritic conditions in cartilage pellet cultures}, series = {Scientific Reports}, journal = {Scientific Reports}, subject = {Bioreactor}, language = {en} } @inproceedings{KneblMortonRedletal., author = {Knebl, Gerald and Morton, Tatjana J. and Redl, Heinz and R{\"u}nzler, Dominik}, title = {Mechanical stimulation of cells in 3-dimensional fibrin constructs using a bioreactor}, series = {3. Forschungsforum der {\"o}sterreichischen Fachhochschulen / Fachhochschule K{\"a}rnten}, booktitle = {3. Forschungsforum der {\"o}sterreichischen Fachhochschulen / Fachhochschule K{\"a}rnten}, pages = {492 -- 493}, subject = {Cells}, language = {en} }