## Abstract The intracellular killing of __Staphylococcus aureus__ and __Escherichia coli__ by human granulocytes was investigated independently of the ingestion of these bacteria. Granulocytes were allowed to phagocytose preopsonized bacteria for only 3 min, after which the noningested bacteria we
In vitro cartilage degradation by escherichia coli and staphylococcus aureus
β Scribed by R. Lane Smith; Thomas C. Merchant; David J. Schurman
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 553 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0004-3591
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Effects of Escherichia coli and Staphylococcus aureus on cartilage and chondrocytes in culture are reported. Under these conditions, bacterial effects on cartilage degradation and cell viability are measured in the absence of inflammation. E coli causes a 28% loss and S aureus an 83% loss of cartilage glycosaminoglycan within 48 hours. Collagen content is unchanged. Both bacterial species induce chondrocyte death in explants and in monolayers within 48 hours. Bacterial effects on glycosaminoglycans and cell viability do not result from depletion of nutrients from the culture medium. Serum in the culture media inhibits the bacterial effects on cartilage degradation but does not prevent cell death.
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