PMID- 1051536 OWN - NLM STAT- MEDLINE DCOM- 19770315 LR - 20141120 IS - 0036-7672 (Print) IS - 0036-7672 (Linking) VI - 106 IP - 49 DP - 1976 Dec 4 TI - [Pathogenicity of methicillin resistant Staphylococcus aureus. In vitro study]. PG - 1751-4 AB - Pathogenicity of methicillin-resistant (MR) strains of S. aureus is difficult to determine from clinical or epidemiological data. The degree of their pathogenicity has been tested in an in vitro phagocytic assay using isolated polymorphonuclear leukocytes (PMN), since PMN are considered to be the main defense mechanism against infections by S. aureus. In the phagocytic assay, survival of MetR strains was measured simultaneously with that of a methicillin-sensitive (MetS) control strain. After 30 and 60 min of incubation, MetR strains survived the phagocytic action of PMN better than the MetS strain. Amplification of resistance towards the antibiotic in three MetR strains did not modify their survival in the phagocytic assay. In conclusion, MetR strains have a definite pathogenic potential and this potential is not affected by the level of resistance towards methicillin. FAU - Vaudaux, P AU - Vaudaux P FAU - Waldvogel, F A AU - Waldvogel FA LA - fre PT - English Abstract PT - Journal Article TT - Pouvoir pathogene de staphylocoques dores resistants a la methicilline. PL - Switzerland TA - Schweiz Med Wochenschr JT - Schweizerische medizinische Wochenschrift JID - 0404401 RN - Q91FH1328A (Methicillin) SB - IM MH - Humans MH - In Vitro Techniques MH - Methicillin/*pharmacology MH - Neutrophils/immunology MH - Penicillin Resistance MH - Phagocytosis MH - Staphylococcus aureus/drug effects/*pathogenicity EDAT- 1976/12/04 00:00 MHDA- 1976/12/04 00:01 CRDT- 1976/12/04 00:00 PHST- 1976/12/04 00:00 [pubmed] PHST- 1976/12/04 00:01 [medline] PHST- 1976/12/04 00:00 [entrez] PST - ppublish SO - Schweiz Med Wochenschr. 1976 Dec 4;106(49):1751-4.