Low molecular weight heparin aggravates infectious arthritis triggered by Staphylococcus aureus

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
E Sakiniene, A Tarkowski

Abstract

Staphylococcus aureus is responsible for the majority of wound infections in clean surgical procedures that involve implantation of foreign material, grafts or prosthetic devices. The aim of the study was to assess the effect of low molecular weight heparin on the development and progression of S. aureus arthritis. The murine model of hematogenously acquired septic arthritis was used injecting intravenously toxic shock syndrome toxin-1 (TSST-1) producing S. aureus of LS-1 strain. Mice lacking prosthetic implants were treated with intraperitoneal injections of low molecular weight heparin, used routinely as anti-thrombotic prophylaxis following joint prosthetic surgery. Evaluation of arthritis was performed clinically and histopathologically. In addition, the effect of low molecular weight heparin on T cell dependent and independent inflammation was assessed. Seven days after inoculation with bacteria 18 out of 19 low molecular weight heparin treated mice displayed clinical symptoms of arthritis as compared to 9 out of 23 control animals (p < 0.05), and the severity of arthritis, expressed as arthritic index, was 2.6+/-0.5 versus 1.6+/-0.5 (p = 0.05). The histopathological examination confirmed the clinical findings showing that...Continue Reading

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Mar 9, 2021·Archives of Microbiology·Hui ShiXianxuan Zhou

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