Literature DB >> 11252335

Relationship between haemolysis production and resistance to fluoroquinolones among clinical isolates of Escherichia coli.

L Martínez-Martínez1, F Fernández, E J Perea.   

Abstract

The activities of ampicillin, amoxycillin-clavulanic acid, gentamicin, tetracycline, nalidixic acid, ciprofloxacin, pefloxacin and trovafloxacin against 207 consecutive clinical isolates of Escherichia coli were determined. Fifty-six (27.3%) isolates were haemolytic. The percentages of resistance to quinolones and tetracycline, but not to other agents, among haemolytic isolates were significantly lower (P < 0.05) than among non-haemolytic isolates. Ciprofloxacin-resistant mutants obtained from ciprofloxacin-susceptible haemolytic isolates still produced haemolysis. It is concluded that most quinolone-resistant clinical isolates of E. coli are non-haemolytic, although haemolysis is produced by quinolone-resistant mutants derived from haemolytic quinolone-susceptible strains.

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Year:  1999        PMID： 11252335     DOI： 10.1093/jac/43.2.277

Source DB:  PubMed          Journal:  J Antimicrob Chemother        ISSN： 0305-7453            Impact factor:   5.790


  14 in total

1.  Virulence factors in Escherichia coli.

Authors:  James R Johnson
Journal:  J Clin Microbiol       Date:  2005-12       Impact factor: 5.948

2.  Virulence genotype and phylogenetic origin in relation to antibiotic resistance profile among Escherichia coli urine sample isolates from Israeli women with acute uncomplicated cystitis.

Authors:  James R Johnson; Michael A Kuskowski; Timothy T O'bryan; Raul Colodner; Raul Raz
Journal:  Antimicrob Agents Chemother       Date:  2005-01       Impact factor: 5.191

3.  Quinolones induce partial or total loss of pathogenicity islands in uropathogenic Escherichia coli by SOS-dependent or -independent pathways, respectively.

Authors:  S M Soto; M T Jimenez de Anta; J Vila
Journal:  Antimicrob Agents Chemother       Date:  2006-02       Impact factor: 5.191

4.  Spontaneous conversion to quinolone and fluoroquinolone resistance among wild-type Escherichia coli isolates in relation to phylogenetic background and virulence genotype.

Authors:  James R Johnson; Brian Johnston; Michael A Kuskowski; Raul Colodner; Raul Raz
Journal:  Antimicrob Agents Chemother       Date:  2005-11       Impact factor: 5.191

5.  Quinolone-resistant uropathogenic Escherichia coli strains from phylogenetic group B2 have fewer virulence factors than their susceptible counterparts.

Authors:  Juan P Horcajada; Sara Soto; Abby Gajewski; Alex Smithson; M Teresa Jiménez de Anta; Josep Mensa; Jordi Vila; James R Johnson
Journal:  J Clin Microbiol       Date:  2005-06       Impact factor: 5.948

6.  Differences in virulence factors among clinical isolates of Escherichia coli causing cystitis and pyelonephritis in women and prostatitis in men.

Authors:  Joaquim Ruiz; Karine Simon; Juan P Horcajada; Maria Velasco; Margarita Barranco; Gloria Roig; Antonio Moreno-Martínez; Jose A Martínez; Teresa Jiménez de Anta; Josep Mensa; Jordi Vila
Journal:  J Clin Microbiol       Date:  2002-12       Impact factor: 5.948

7.  Virulence potential of Escherichia coli isolates from skin and soft tissue infections.

Authors:  Ziva Petkovsek; Kristina Elersic; Marija Gubina; Darja Zgur-Bertok; Marjanca Starcic Erjavec
Journal:  J Clin Microbiol       Date:  2009-04-08       Impact factor: 5.948

8.  Virulence factors in urinary Escherichia coli strains: phylogenetic background and quinolone and fluoroquinolone resistance.

Authors:  Gabriella Piatti; Alessandro Mannini; Maria Balistreri; Anna Maria Schito
Journal:  J Clin Microbiol       Date:  2007-12-05       Impact factor: 5.948

9.  Fluoroquinolone-resistant Haemophilus parasuis isolates exhibit more putative virulence factors than their susceptible counterparts.

Authors:  Qiang Zhang; Jiantao Liu; Shuxian Yan; Yujie Yang; Anding Zhang; Meilin Jin
Journal:  J Clin Microbiol       Date:  2013-06-19       Impact factor: 5.948

10.  Production of HlyA and ClyA haemolysins among quinolone-resistant Escherichia coli isolated from clinical samples.

Authors:  Alicia Márquez-López; Belén Ruiz Del Castillo; María Eliecer Cano; Cristina Rodríguez-Mirones; Jesús Oteo; David Sáez; Luis Martínez-Martínez
Journal:  Springerplus       Date:  2013-02-27
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