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• W2891239382 abstract "<b><i>Aims:</i></b> Prosthetic graft infection frequently requires graft replacement. Among other options, a biological graft could serve as an alternative choice. Decellularization reduces tissue immunogenicity. Our aim was to determine an efficient decellularization method and to evaluate the decellularized porcine biografts’ adaptability. <b><i>Methods:</i></b> Four different protocols were implemented to decellularize porcine aortic segments (<i>n</i> = 4). Cell removal effectiveness and matrix structure preservation were histologically examined. Mechanical tests were performed.<i></i> Decellularized porcine grafts were interpositioned in a porcine aorta. After a 6-month period, implanted samples were removed and evaluated using light and electron microscopy. <b><i>Results:</i></b> Histological results showed complete removal of cells and preserved connective tissue fiber structure following decellularization, using sodium dodecyl sulfate and sodium azide. Pressure tests demonstrated similar compliance to fresh vessels. In 9 out of 10 cases, pigs survived the follow-up period. Graft rejection, intimal hyperplasia, reocclusion and/or aneurysm formation were not observed. Presence of host cells and neoendothelialization were microscopically confirmed. <b><i>Conclusions:</i></b> This decellularization protocol enables a cost-effective preparation of biological grafts featuring reduced immunogenicity. The implanted grafts did not degenerate during the 6-month follow-up period, the lack of graft rejection suggests acceptable immunological tolerance, while recipient cells migrate into, proliferate and differentiate, thus creating the possibility for further use as an optional vascular graft." @default.
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• W2891239382 date "2018-01-01" @default.
• W2891239382 modified "2023-10-18" @default.
• W2891239382 title "Histological and Mechanical Assessment of Decellularized Porcine Biografts, and Its Biological Evaluation following Aortic Implantation during Mid-Term Follow-Up" @default.
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• W2891239382 doi "https://doi.org/10.1159/000491929" @default.
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