Literature DB >> 3190196

Outer membrane permeation of Bacteroides fragilis by cephalosporins.

A Yotsuji1, J Mitsuyama, R Hori, T Yasuda, I Saikawa, M Inoue, S Mitsuhashi.   

Abstract

Outer membrane permeation of Bacteroides fragilis by cephalosporins was examined by a previously described method. The permeation parameters of cephalosporins in B. fragilis were close to 10(-5) cm3/min per microgram of cell dry weight. These values were about an order of magnitude lower than those in Escherichia coli. In B. fragilis, the permeation was not directly proportional to the hydrophilicity of cephalosporins, and the ion selectivity was weak.

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Year:  1988        PMID： 3190196      PMCID： PMC172353          DOI： 10.1128/AAC.32.7.1097

Source DB:  PubMed          Journal:  Antimicrob Agents Chemother        ISSN： 0066-4804            Impact factor:   5.191


  14 in total

1.  Micro-iodometric assay for penicillinase.

Authors:  R P NOVICK
Journal:  Biochem J       Date:  1962-05       Impact factor: 3.857

2.  Susceptibility to beta-lactam antibiotics and production of beta-lactamase in Bacteroides fragilis.

Authors:  B Olsson; K Dornbusch; C E Nord
Journal:  Med Microbiol Immunol       Date:  1977-10-07       Impact factor: 3.402

3.  Ionic selectivity of pores formed by the matrix protein (porin) of Escherichia coli.

Authors:  R Benz; K Janko; P Läuger
Journal:  Biochim Biophys Acta       Date:  1979-03-08

4.  Factors contributing to resistance to beta-lactam antibiotics in Bacteroides fragilis.

Authors:  B Olsson; K Dornbusch; C E Nord
Journal:  Antimicrob Agents Chemother       Date:  1979-02       Impact factor: 5.191

5.  A method for measuring the outer membrane-permeability of beta-lactam antibiotics in gram-negative bacteria.

Authors:  T Sawai; K Matsuba; S Yamagishi
Journal:  J Antibiot (Tokyo)       Date:  1977-12       Impact factor: 2.649

6.  Diffusion of beta-lactam antibiotics through the porin channels of Escherichia coli K-12.

Authors:  F Yoshimura; H Nikaido
Journal:  Antimicrob Agents Chemother       Date:  1985-01       Impact factor: 5.191

7.  Properties of novel beta-lactamase produced by Bacteroides fragilis.

Authors:  A Yotsuji; S Minami; M Inoue; S Mitsuhashi
Journal:  Antimicrob Agents Chemother       Date:  1983-12       Impact factor: 5.191

8.  Function of the outer membrane of Escherichia coli as a permeability barrier to beta-lactam antibiotics.

Authors:  W Zimmermann; A Rosselet
Journal:  Antimicrob Agents Chemother       Date:  1977-09       Impact factor: 5.191

9.  Difference in pathway of Escherichia coli outer membrane permeation between penicillins and cephalosporins.

Authors:  A Yamaguchi; N Tomiyama; R Hiruma; T Sawai
Journal:  FEBS Lett       Date:  1985-02-11       Impact factor: 4.124

10.  Pathogenic anaerobes.

Authors:  S M Finegold
Journal:  Arch Intern Med       Date:  1982-10-25
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  4 in total

1.  Molecular cloning of the gyrA and gyrB genes of Bacteroides fragilis encoding DNA gyrase.

Authors:  Y Onodera; K Sato
Journal:  Antimicrob Agents Chemother       Date:  1999-10       Impact factor: 5.191

2.  Mechanism of action of cephalosporins and resistance caused by decreased affinity for penicillin-binding proteins in Bacteroides fragilis.

Authors:  A Yotsuji; J Mitsuyama; R Hori; T Yasuda; I Saikawa; M Inoue; S Mitsuhashi
Journal:  Antimicrob Agents Chemother       Date:  1988-12       Impact factor: 5.191

3.  Active efflux of norfloxacin by Bacteroides fragilis.

Authors:  S Miyamae; H Nikaido; Y Tanaka; F Yoshimura
Journal:  Antimicrob Agents Chemother       Date:  1998-08       Impact factor: 5.191

4.  The ferrous iron-responsive BqsRS two-component system activates genes that promote cationic stress tolerance.

Authors:  Naomi N Kreamer; Flavia Costa; Dianne K Newman
Journal:  MBio       Date:  2015-02-24       Impact factor: 7.867
  4 in total

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