Experimentelle Untersuchungen über Zell- und Gewebsreaktionen nach Implantation von xenogenem Kollagenschaum
- 1 February 1979
- journal article
- research article
- Published by Springer Nature in Zeitschrift für Die Gesamte Experimentelle Medizin
- Vol. 175 (1) , 67-79
- https://doi.org/10.1007/bf01851235
Abstract
164 inbred Wistar rats received subcutaneous and intraperitoneal implants of xenogeneic collagen sponges and were examined by light- and electron microscopy as well as immunohistologically, to establish tissue and cell reactions and the time of collagen reabsorption. 4 to 5 weeks after implantation the xenogeneic collagen sponge was completely absorbed. All the inflammatory and reparative reactions were non-specific. Granulation tissue appeared soon (3 days after implantation) with new synthesis of fine collagen fibrils, mainly of type III, followed by type I collagen fibers. Myofibroblasts, with intracellular evidence of myosin and collagen (Type I and III) were sporadically present in the granulation tissue after day 5 and regularly after day 10. Small scar granulomas without xenogenic collagen were detectable even 4 to 6 months after collagen implantation. Reabsorption and regression of collagen granulomas occurred faster after xenogeneic collagen implantation than after using surgical cat sutures. From the morphological point of view, there is no indication of specific sensitization against xenogeneic collagen or of a specific immunologic process. An 164 Inzuchtratten wurden morphologische Gewebsreaktionen und Resorptionszeiten von implantiertem xenogenem Kollagenschaum untersucht: Die entzündlich-resorptiven Veränderungen im Gewebe sind unspezifisch. Die Granulationsgewebsbildung tritt rasch auf. Das xenogene Kollagen ist nach 4 bis 5 Wochen vollständig resorbiert. Kleine Narbengranulome finden sich zum Teil noch nach 5 bis 6 Monaten. Die Resorption und Rückbildung der Kollagenschaumgranulome erfolgt rascher als bei der Verwendung von chirurgischem Catgut. Für eine spezifische Sensibilisierung gegen das Fremdkollagen bzw. für den Ablauf spezifischer immunologischer Vorgänge ergibt sich morphologisch kein Anhalt.This publication has 11 references indexed in Scilit:
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