Acquired resistance of bacteria to nitrofuran derivatives.(2)
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Mechanisms of polymyxin resistance: acquired and intrinsic resistance in bacteria
Polymyxins are polycationic antimicrobial peptides that are currently the last-resort antibiotics for the treatment of multidrug-resistant, Gram-negative bacterial infections. The reintroduction of polymyxins for antimicrobial therapy has been followed by an increase in reports of resistance among Gram-negative bacteria. Some bacteria, such as Klebsiella pneumoniae, Pseudomonas aeruginosa, and ...
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Colistin-resistant mutants were obtained from 17 colistin-susceptible strains of Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli. The stability of colistin resistance in these mutants was investigated. Three of four colistin-resistant P. aeruginosa mutants recovered colistin susceptibility in colistin-free medium; however, colistin-susceptible revert...
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Corticotropin, which may be defined as a pituitary extract that will directly stimulate the adrenal cortex to secrete its predominantly "glucocorticoid" hormones, has been in general use for about 5 years. In spite of this, its use as a therapeutic agent has not been defined. There are two reasons for this state of affairs. The first is that most physicians have assumed that the administration ...
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Background: Usually, chemoradiotherapy can be used for the treatment of locally advanced colorectal cancer (CRC) before surgery. On the other hand, some studies have shown that fractional radiation of tumor cells leads to chemoresistance. The aim of this study was to evaluate the chemoresistance of radioresistant sub-line (RR sub-line).Methods: This study was done in Hamadan University of...
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BACKGROUND Antibiotic resistance, evolving and spreading among bacterial pathogens, poses a serious threat to human health. Antibiotic use for clinical, veterinary and agricultural practices provides the major selective pressure for emergence and persistence of acquired resistance determinants. However, resistance has also been found in the absence of antibiotic exposure, such as in bacteria fr...
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ژورنال
عنوان ژورنال: Nippon Saikingaku Zasshi
سال: 1958
ISSN: 1882-4110,0021-4930
DOI: 10.3412/jsb.13.337