Comparison of full gyrA, gyrB, parC and parE gene sequences between all Ureaplasma parvum and Ureaplasma urealyticum serovars to separate true fluoroquinolone antibiotic resistance mutations from non-resistance polymorphism
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چکیده
منابع مشابه
In vitro activity of five quinolones and analysis of the quinolone resistance-determining regions of gyrA, gyrB, parC, and parE in Ureaplasma parvum and Ureaplasma urealyticum clinical isolates from perinatal patients in Japan.
Ureaplasma spp. cause several disorders, such as nongonococcal urethritis, miscarriage, and preterm delivery with lung infections in neonates, characterized by pathological chorioamnionitis in the placenta. Although reports on antibiotic resistance in Ureaplasma are on the rise, reports on quinolone-resistant Ureaplasma infections in Japan are limited. The purpose of this study was to determine...
متن کاملFluoroquinolone Resistance Linked to GyrA, GyrB, and ParC Mutations in Salmonella enterica Typhimurium Isolates in Humans
We report two cases of infection with clonally unrelated, high-level ciprofloxacin-resistant, b-lactamase-producing strains of Salmonella enterica Typhimurium. Resistance was caused by four topoisomerase mutations, in GyrA, GyrB, and ParC and increased drug efflux. Ciprofloxacin treatment failed in one case. In the second case, reduced susceptibility to third-generation cephalosporins occurred ...
متن کاملFluoroquinolone resistance in Ureaplasma parvum in the United States.
We report the first case of naturally occurring fluoroquinolone resistance in Ureaplasma spp. from the United States. Resistance in this case probably developed as a result of mutations in the gyrA and parC genes of the DNA gyrase/topoisomerase IV complex that occurred in the presence of antimicrobial selective pressure.
متن کاملFrequent topoisomerase IV mutations associated with fluoroquinolone resistance in Ureaplasma species.
This study aimed to investigate the role of quinolone resistance-determining regions (QRDRs) of DNA gyrase (encoded by gyrA and gyrB) and topoisomerase IV (encoded by parC and parE) associated with fluoroquinolone resistance. A total of 114 Ureaplasma spp. strains, isolated from clinical female patients with symptomatic infection, were tested for species distribution and susceptibility to four ...
متن کاملDifferences in biofilm development and antibiotic susceptibility among clinical Ureaplasma urealyticum and Ureaplasma parvum isolates.
OBJECTIVES The aim of this work was to study the ability of clinical isolates of Ureaplasma spp. to form biofilms in vitro and to compare the antibiotic susceptibility of sessile cells and their planktonic counterparts. METHODS A total of nine Ureaplasma spp. isolates recovered from unrelated male patients diagnosed with urethritis or chronic prostatitis and two isolates isolated from the uri...
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ژورنال
عنوان ژورنال: Journal of Antimicrobial Chemotherapy
سال: 2009
ISSN: 0305-7453,1460-2091
DOI: 10.1093/jac/dkp218