Functional in vitro tension measurements of fascial tissue – a novel modified superfusion approach, 2016
Topics: Fascia, Organ Bath, Mechanographic Registration, Superfusion, Immersionmized Mice, Bone Metabolic Marker
Authors: R. Schleip, W. Klingler, S. Wearing, I. Naylor, M. Zuegel and K. Hoppe
Introduction: While two laboratory techniques are commonly used to assess the tensile properties of muscle tissue, emerging evidence suggests that the fascial components of these tissues also serve an active role in force generation. Hence, we investigated whether these techniques are sensitive for assessment of fascial micromechanics.
Methods: Force measurements on dissected fascial tissue were performed either using the classical immersion organ bath or using an improved superfusion approach simulating pulsed pharmacological triggers. Rat deep dorsal fascial strips as well as rat testicular capsule were pharmacologically challenged either with mepyramine or oxytocin.
Results: The classical immersion technique yielded a lower force response to mepyramine than the superfusion method (median: 367.4 vs. 555.4µN/mm(2)). Pause in irrigation before application reduced irregularities during bolus application. The superfusion approach was improved further by the following points: The high sensitivity of the superfusion method to bolus addition was voided by deviation of fluid supply during bolus addition.
Conclusion: Although both methods demonstrated pharmacologically induced contractile responses in lumbar fascia samples, the modified superfusion method may improve force registrations of slow contracting fascial tissue and minimize artefacts of fluid application.
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