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dc.contributor.authorPrat Vidal, Cristina
dc.contributor.authorGálvez Montón, Carolina
dc.contributor.authorSánchez Terrones, Benjamín
dc.contributor.authorBragós Bardia, Ramon
dc.contributor.authorBogónez Franco, Francisco
dc.contributor.authorPuig Sanvicens, Verónica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.identifier.citationPrat, C. [et al.]. Online monitoring of myocardial bioprosthesis for cardiac repair. "International journal of cardiology", 01 Juliol 2014, vol. 174, núm. 3, p. 654-661.
dc.description.abstractBackground/objectives The aim of this study was to develop a myocardial bioprosthesis for cardiac repair with an integrated online monitoring system. Myocardial infarction (MI) causes irreversible myocyte loss and scar formation. Tissue engineering to reduce myocardial scar size has been tested with variable success, yet scar formation and modulation by an engineered graft is incompletely characterized. Methods Decellularized human pericardium was embedded using self-assembling peptide RAD16-I with or without GFP-labeled mediastinal adipose tissue-derived progenitor cells (MATPCs). Resulting bioprostheses were implanted over the ischemic myocardium in the swine model of MI (n = 8 treated and n = 5 control animals). For in vivo electrical impedance spectroscopy (EIS) monitoring, two electrodes were anchored to construct edges, covered by NanoGold particles and connected to an impedance-based implantable device. Histological evaluation was performed to identify and characterize GFP cells on post mortem myocardial sections. Results Pluripotency, cardiomyogenic and endothelial potential and migratory capacity of porcine-derived MATPCs were demonstrated in vitro. Decellularization protocol efficiency, biodegradability, as well as in vitro biocompatibility after recellularization were also verified. One month after myocardial bioprosthesis implantation, morphometry revealed a 36% reduction in infarct area, Ki67+-GFP+-MATPCs were found at infarct core and border zones, and bioprosthesis vascularization was confirmed by presence of Griffonia simplicifolia lectin I (GSLI) B4 isolectin+-GFP+-MATPCs. Electrical impedance measurement at low and high frequencies (10 kHz-100 kHz) allowed online monitoring of scar maturation. Conclusions With clinical translation as ultimate goal, this myocardial bioprosthesis holds promise to be a viable candidate for human cardiac repair.
dc.format.extent8 p.
dc.subjectÀrees temàtiques de la UPC::Ciències de la salut
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica
dc.subject.otherAdipose tissue derived progenitor cells
dc.subject.otherDecellularized pericardium
dc.subject.otherMyocardial bioprosthesis
dc.subject.otherMyocardial infarction
dc.subject.otherSwine model
dc.titleOnline monitoring of myocardial bioprosthesis for cardiac repair
dc.subject.lemacInfart de miocardi
dc.subject.lemacPròtesis -- Biomecànica
dc.contributor.groupUniversitat Politècnica de Catalunya. IEB - Instrumentació Electrònica i Biomèdica
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorPrat, C.; Gálvez, C.; Sánchez, B.; Bragos, R.; Bogonez, F.; Puig, V.
local.citation.publicationNameInternational journal of cardiology

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