Frequency of Chromosomally Encoded gyrA and parC Genetic Determinants of Fluoroquinolone Resistance in A. baumannii
Amit Kumar Singh, A. S. Smiline Girija, J. Vijayashree Priyadharsini, A. Paramasivam
Journal of Pharmaceutical Research International · pp. 18–24 · Published 24 Aug 2020
10.9734/jpri/2020/v32i1630645Abstract
Fluoroquinolones are administered as routine drugs of choice for treating complicated urinary tract infections caused by multidrug resistant Acinetobacter baumannii strains. It is now a world-wide issue that gyr and par induced quinolone resistance as one of the major drug resistance mechanisms. This investigation is thus aimed to assess the prevalence of quinolone resistance and to characterize the gyrA and parC producing strains of A. baumannii. Genomic DNA from 50 fluoroquinolone resistant A. baumannii were screened for gyrA and parC by PCR for the genetic relatedness with fluoroquinolone resistance, with sequencing of the representative strains. All the strains were positive for gyrA(100%) and 82% (n=41) for parC. Presence of parC was observed in 56.09% (n=23) ciprofloxacin resistant A. baumannii with 43.90% (n=18) in levofloxacin resistant A. baumannii. The findings of the present study showed the prevalence of fluoroquinolone resistance among A. baumannii in urinary tract infections and the frequency of gyrA and parC in inducing the resistance.
Cited by 2
Beizhen Pan, Yue-Feng Wang, Jiansheng Su · BMC Microbiology · 2024
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