Association Between Presence of Virulence Genes and Antibiotic Resistance in Clinical Klebsiella Pneumoniae Isolates

被引:36
|
作者
Derakhshan, Safoura [1 ]
Peerayeh, Shahin Najar [1 ]
Bakhshi, Bita [1 ]
机构
[1] Tarbiat Modares Univ, Dept Bacteriol, Fac Med Sci, Tehran, Iran
关键词
Klebsiella pneumoniae; antibiotic resistance; virulence genes; integrons; extended-spectrum beta-lactamase; bacterial capsule; SPECTRUM BETA-LACTAMASES; CLASS; INTEGRONS; ESCHERICHIA-COLI; PHYLOGENETIC GROUPS; STRAINS; TEHRAN; IRAN;
D O I
10.1093/labmed/lmw030
中图分类号
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号
1001 ;
摘要
Objective: To investigate the presence of rmpA and wcaG virulence genes and Class 1, 2, and 3 integrons, and to evaluate a relationship between antibiotic resistance and virulence in Klebsiella pneumoniae. Methods: We collected a total of 200 K. pneumoniae isolates from hospitals in Tehran, Iran. Antibiotic susceptibility was determined using the disk diffusion method. The extended-spectrum b-lactamase (ESBL) producers were detected using the combination disk method. We detected the rmpA and wcaG genes and class 1, 2, and 3 integrons via polymerase chain reaction (PCR). The chi(2) test was used for statistical evaluation. Results: Of 200 isolates, 115 (57.5%) were ESBL producers; 74.0% carried the class 1 integron, and 1.0% carried the class 2 integron. The gene rmpA was detected in 7% of isolates and the gene wcaG in 23.5% of isolates. Integron-positive isolates showed a higher prevalence of wcaG compared with to integron-negative isolates (P<.05). Conclusion: Our results showed a correlation between presence of virulence gene and antibiotic resistance in K. pneumoniae.
引用
收藏
页码:306 / 311
页数:6
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