期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
卷 18, 期 4, 页码 537-543出版社
SPRINGER
DOI: 10.1007/s10856-007-2300-x
关键词
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The impact of peracetic acid (PAA), lyophilization, and ethylene oxide (EO) sterilization on the composition and three dimensional matrix structure of small intestinal submucosa (SIS), a biologic scaffold used to stimulate the repair of damaged tissues and organs, was examined. Fibronectin and glycosaminoglycans are retained in SIS following oxidation by peracetic acid and alkylation using ethylene oxide gas. Significant amounts of FGF-2 are also retained, but VEGF is susceptible to the effects of PAA and is dramatically reduced following processing. Further, matrix oxidation, lyophilization, and sterilization with EO can be performed without irreversibly collapsing the three dimensional structure of the native SIS. These structural features and growth promoting extracellular matrix constituents are likely to be important variables underlying cellular attachment, infiltration and eventual incorporation of SIS into healing host tissues.
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