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首页> 外文期刊>Journal of the Korean Society for Applied Biological Chemistry >Characterization of Antibiotic Resistant Staphylococcus aureus Isolates from Ready-to-Eat Foods in Korea
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Characterization of Antibiotic Resistant Staphylococcus aureus Isolates from Ready-to-Eat Foods in Korea

机译：韩国即食食品中抗药性金黄色葡萄球菌分离株的表征

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摘要

Heat-stable enterotoxins and coagulase type are the most notable virulence factors associated with Staphylococcus aureus, a common pathogen associated with serious community- and hospital-acquired disease. Thus enterotoxin gene profiles and the PFGE or coagulase patterns of antibiotic resistant S. aureus isolates from ready-to-eat foods in Korea were examined. Among 154 S. aureus isolates, antibiotic resistance to penicillin, gentamicin and tetracycline were 81.2% (125/154), 11.0% (17/154) and 11.7% (18/154), respectively. None of the strains were resistant to vancomycin. Two of three oxacillin-resistant strains were resistant to cephalothin and were mecA positive. Furthermore, 104 of 139 S. aureus isolates contained staphylococcal enterotoxin (SE) genes, and 13.5% of the SE strains were resistant to erythromycin and gentamicin. One oxacillin-resistant isolate had a pattern similar to NRS 123 (SCCmec IVa) according to pulsed-field gel electrophoresis (PFGE) using SmaI. Based on coagulase isotyping, type IV and VII were the most predominant, accounting for 30.9%, respectively. Coagulase type IV harbored the sea gene or the seg-sei-tst gene combination, and all of the type VII strains had the seh toxin gene. These data indicate that the enterotoxin gene profile correlates to coagulase type or antimicrobial resistance and can be used as a practical database for epidemiological purposes.
机译：热稳定的肠毒素和凝固酶类型是与金黄色葡萄球菌有关的最明显的毒力因子，金黄色葡萄球菌是与严重的社区和医院获得性疾病有关的常见病原体。因此，检查了韩国即食食品中的抗生素抗性金黄色葡萄球菌分离株的肠毒素基因谱和PFGE或凝固酶模式。在154株金黄色葡萄球菌中，对青霉素，庆大霉素和四环素的抗生素耐药性分别为81.2％（125/154），11.0％（17/154）和11.7％（18/154）。没有一个菌株对万古霉素有抗性。 3株对奥沙西林耐药的菌株中有2株对头孢菌素耐药，且mecA阳性。此外，在139株金黄色葡萄球菌中，有104株含有葡萄球菌肠毒素（SE）基因，其中13.5％的SE菌株对红霉素和庆大霉素有抗药性。根据使用SmaI的脉冲场凝胶电泳（PFGE），一种耐奥沙西林的分离株具有类似于NRS 123（SCCmec IVa）的模式。根据凝固酶同种型，IV型和VII型最为主要，分别占30.9％。凝血酶IV型包含海基因或seg-sei-tst基因组合，并且所有VII型菌株均具有seh毒素基因。这些数据表明肠毒素基因谱与凝结酶类型或抗菌素耐药性有关，可用作流行病学实用数据库。

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