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Complement killing of Yersinia enterocolitica and retention of the bacteria by leucocyte removal filters.
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1994 (English)In: Vox Sanguinis, ISSN 0042-9007, E-ISSN 1423-0410, Vol. 66, no 3, 166-170 p.Article in journal (Refereed) Published
Abstract [en]

We report studies on the complement sensitivity of four strains of Yersinia enterocolitica, serotypes O:3, O:9, O:5.27, and O:20, isolated from blood units involved in transfusion fatalities. Complement in fresh CPD plasma killed Y. enterocolitica within 4 h at 22 degrees C in 100% of the experiments. The bactericidal action was serotype and complement activation pathway dependent. Both classic and alternate pathways seemed to be active, but the latter to a lesser degree. When the classic pathway was blocked by chelation of Ca2+ no complete killing was obtained. Complement did not enhance or condition Yersinia for leucocyte filter retention. Direct removal of Yersinia by filtration was also related to serotype; all strains were reduced by filtration in heat-inactivated plasma, and all except serotype O:5.27 were reduced in Ca(2+)-chelated plasma. Our findings may explain why plasma products and platelet concentrates are rarely involved in Yersinia sepsis related to transfusion.

Place, publisher, year, edition, pages
1994. Vol. 66, no 3, 166-170 p.
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Medical and Health Sciences
URN: urn:nbn:se:uu:diva-266894PubMedID: 8036784OAI: oai:DiVA.org:uu-266894DiVA: diva2:869155
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2015-11-13

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