@article{MayerRabindranathBoerneretal.2013, author = {Mayer, Matthias and Rabindranath, Raman and B{\"o}rner, Juliane and H{\"o}rner, Eva and Bentz, Alexander and Salgado, Josefina and Han, Hong and B{\"o}se, Holger and Probst, J{\"o}rn and Shamonin, Mikhail and Monkman, Gereth J. and Schlunck, G{\"u}nther}, title = {Ultra-Soft PDMS-Based Magnetoactive Elastomers as Dynamic Cell Culture Substrata}, series = {PLOS ONE}, volume = {8}, journal = {PLOS ONE}, number = {10}, issn = {1932-6203}, doi = {10.1371/journal.pone.0076196}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-128246}, pages = {e76196}, year = {2013}, abstract = {Mechanical cues such as extracellular matrix stiffness and movement have a major impact on cell differentiation and function. To replicate these biological features in vitro, soft substrata with tunable elasticity and the possibility for controlled surface translocation are desirable. Here we report on the use of ultra-soft (Young's modulus <100 kPa) PDMS-based magnetoactive elastomers (MAE) as suitable cell culture substrata. Soft non-viscous PDMS (<18 kPa) is produced using a modified extended crosslinker. MAEs are generated by embedding magnetic microparticles into a soft PDMS matrix. Both substrata yield an elasticity-dependent (14 vs. 100 kPa) modulation of alpha-smooth muscle actin expression in primary human fibroblasts. To allow for static or dynamic control of MAE material properties, we devise low magnetic field (approximate to 40 mT) stimulation systems compatible with cell-culture environments. Magnetic field-instigated stiffening (14 to 200 kPa) of soft MAE enhances the spreading of primary human fibroblasts and decreases PAX-7 transcription in human mesenchymal stem cells. Pulsatile MAE movements are generated using oscillating magnetic fields and are well tolerated by adherent human fibroblasts. This MAE system provides spatial and temporal control of substratum material characteristics and permits novel designs when used as dynamic cell culture substrata or cell culture-coated actuator in tissue engineering applications or biomedical devices.}, language = {en} } @article{LombardiMayerSemleretal.2021, author = {Lombardi, Jolina and Mayer, Benjamin and Semler, Elisa and Anderl-Straub, Sarah and Uttner, Ingo and Kassubek, Jan and Diehl-Schmid, Janine and Danek, Adrian and Levin, Johannes and Fassbender, Klaus and Fliessbach, Klaus and Schneider, Anja and Huppertz, Hans-J{\"u}rgen and Jahn, Holger and Volk, Alexander and Kornhuber, Johannes and Landwehrmeyer, Bernhard and Lauer, Martin and Prudlo, Johannes and Wiltfang, Jens and Schroeter, Matthias L. and Ludolph, Albert and Otto, Markus}, title = {Quantifying progression in primary progressive aphasia with structural neuroimaging}, series = {Alzheimer's \& Dementia}, volume = {17}, journal = {Alzheimer's \& Dementia}, number = {10}, doi = {10.1002/alz.12323}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-262605}, pages = {1595 -- 1609}, year = {2021}, abstract = {Introduction The term primary progressive aphasia (PPA) sums up the non-fluent (nfv), the semantic (sv), and the logopenic (lv) variant. Up to now, there is only limited data available concerning magnetic resonance imaging volumetry to monitor disease progression. Methods Structural brain imaging and an extensive assessment were applied at baseline and up to 4-year(s) follow-up in 269 participants. With automated atlas-based volumetry 56 brain regions were assessed. Atrophy progression served to calculate sample sizes for therapeutic trials. Results At baseline highest atrophy appeared in parts of the left frontal lobe for nfvPPA (-17\%) and of the left temporal lobe for svPPA (-34\%) and lvPPA (-24\%). Severest progression within 1-year follow-up occurred in the basal ganglia in nfvPPA (-7\%), in the hippocampus/amygdala in svPPA (-9\%), and in (medial) temporal regions in lvPPA (-6\%). Conclusion PPA presents as a left-dominant, mostly gray matter sensitive disease with considerable atrophy at baseline that proceeds variant-specific.}, language = {en} } @article{RauchSalzwedelBjarnasonWehrensetal.2021, author = {Rauch, Bernhard and Salzwedel, Annett and Bjarnason-Wehrens, Birna and Albus, Christian and Meng, Karin and Schmid, Jean-Paul and Benzer, Werner and Hackbusch, Matthes and Jensen, Katrin and Schwaab, Bernhard and Altenberger, Johann and Benjamin, Nicola and Bestehorn, Kurt and Bongarth, Christa and D{\"o}rr, Gesine and Eichler, Sarah and Einwang, Hans-Peter and Falk, Johannes and Glatz, Johannes and Gielen, Stephan and Grilli, Maurizio and Gr{\"u}nig, Ekkehard and Guha, Manju and Hermann, Matthias and Hoberg, Eike and H{\"o}fer, Stefan and Kaemmerer, Harald and Ladwig, Karl-Heinz and Mayer-Berger, Wolfgang and Metzendorf, Maria-Inti and Nebel, Roland and Neidenbach, Rhoia Clara and Niebauer, Josef and Nixdorff, Uwe and Oberhoffer, Renate and Reibis, Rona and Reiss, Nils and Saure, Daniel and Schlitt, Axel and V{\"o}ller, Heinz and K{\"a}nel, Roland von and Weinbrenner, Susanne and Westphal, Ronja}, title = {Cardiac rehabilitation in German speaking countries of Europe — evidence-based guidelines from Germany, Austria and Switzerland LLKardReha-DACH — Part 1}, series = {Journal of Clinical Medicine}, volume = {10}, journal = {Journal of Clinical Medicine}, number = {10}, issn = {2077-0383}, doi = {10.3390/jcm10102192}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239709}, year = {2021}, abstract = {Background: Although cardiovascular rehabilitation (CR) is well accepted in general, CR-attendance and delivery still considerably vary between the European countries. Moreover, clinical and prognostic effects of CR are not well established for a variety of cardiovascular diseases. Methods: The guidelines address all aspects of CR including indications, contents and delivery. By processing the guidelines, every step was externally supervised and moderated by independent members of the "Association of the Scientific Medical Societies in Germany" (AWMF). Four meta-analyses were performed to evaluate the prognostic effect of CR after acute coronary syndrome (ACS), after coronary bypass grafting (CABG), in patients with severe chronic systolic heart failure (HFrEF), and to define the effect of psychological interventions during CR. All other indications for CR-delivery were based on a predefined semi-structured literature search and recommendations were established by a formal consenting process including all medical societies involved in guideline generation. Results: Multidisciplinary CR is associated with a significant reduction in all-cause mortality in patients after ACS and after CABG, whereas HFrEF-patients (left ventricular ejection fraction <40\%) especially benefit in terms of exercise capacity and health-related quality of life. Patients with other cardiovascular diseases also benefit from CR-participation, but the scientific evidence is less clear. There is increasing evidence that the beneficial effect of CR strongly depends on "treatment intensity" including medical supervision, treatment of cardiovascular risk factors, information and education, and a minimum of individually adapted exercise volume. Additional psychologic interventions should be performed on the basis of individual needs. Conclusions: These guidelines reinforce the substantial benefit of CR in specific clinical indications, but also describe remaining deficits in CR-delivery in clinical practice as well as in CR-science with respect to methodology and presentation.}, language = {en} }