Abstract:
:Resistant mutants of Ureaplasma parvum were selected by serial passages of a susceptible strain in subinhibitory concentrations of different macrolides and related antibiotics (erythromycin, azithromycin, josamycin, quinupristin, quinupristin/dalfopristin, pristinamycin and telithromycin). Mechanisms of resistance were characterised by sequencing portions of genes encoding 23S rRNA and ribosomal proteins L4 and L22. Mutants with significantly increased minimum inhibitory concentrations could be selected with all the selector antibiotics, except quinupristin and pristinamycin. Mutants harboured mutations in domain V of the 23S rRNA gene at nucleotides G2056, G2057 or A2058 (Escherichia coli numbering) and in conserved portions of ribosomal proteins L4 and L22. Most of the mutations were associated with complete loss of macrolide and ketolide activity, whereas streptogramin combinations were less affected.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Pereyre S,Métifiot M,Cazanave C,Renaudin H,Charron A,Bébéar C,Bébéar CMdoi
10.1016/j.ijantimicag.2006.09.008subject
Has Abstractpub_date
2007-02-01 00:00:00pages
207-11issue
2eissn
0924-8579issn
1872-7913pii
S0924-8579(06)00413-4journal_volume
29pub_type
杂志文章abstract::The antimicrobial activity of linezolid, a recently developed antibiotic agent active against Gram-positive bacteria, was tested against pathogens from three different collections. (1) Uropathogens from hospitalized urological patients (1990/1991) with complicated and/or hospital-acquired UTIs; Urologic Clinic, Hospit...
journal_title:International journal of antimicrobial agents
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abstract::Chlorcyclizine HCl and ciprofloxacin HCl were shown to have anti-HIV activity. They possess virustatic and virucidal activities against HIV, a murine retrovirus (RV) and several other RNA and DNA viruses. These drugs were screened from a large number of compounds on the basis of in vitro mutagenicity and antimetabolit...
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journal_title:International journal of antimicrobial agents
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更新日期:2004-10-01 00:00:00
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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更新日期:2015-05-01 00:00:00
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journal_title:International journal of antimicrobial agents
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更新日期:2009-09-01 00:00:00
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更新日期:2015-02-01 00:00:00
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journal_title:International journal of antimicrobial agents
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更新日期:2007-07-01 00:00:00
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journal_title:International journal of antimicrobial agents
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更新日期:2017-06-01 00:00:00
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journal_title:International journal of antimicrobial agents
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更新日期:2012-03-01 00:00:00
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journal_title:International journal of antimicrobial agents
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更新日期:2005-12-01 00:00:00
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journal_title:International journal of antimicrobial agents
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更新日期:2003-09-01 00:00:00
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
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更新日期:1995-04-01 00:00:00
abstract::Visceral leishmaniasis (VL), caused by the protozoan Leishmania sp., affects 500000 people annually, with the Indian subcontinent contributing a significant proportion of these cases. Emerging refractoriness to conventional antimony therapy has emphasised the need for safer yet effective antileishmanial drugs. Artemis...
journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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更新日期:2003-01-01 00:00:00
abstract::To characterise the prevalence of β-lactamases and 16S rRNA methylase genes amongst clinical Klebsiella pneumoniae isolates carrying plasmid-mediated quinolone resistance (PMQR) determinants in China, 59 non-duplicate K. pneumoniae isolates harbouring at least one PMQR gene were screened for common β-lactamases and 16...
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abstract::Methicillin-resistant Staphylococcus aureus (MRSA) is a worldwide important pathogen in nosocomial infections. To investigate the extent of the problem in Taiwan, analysis for the period of 1981-1994 was carried out of prospective surveillance data from the National Taiwan University Hospital, a major university teach...
journal_title:International journal of antimicrobial agents
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abstract::The in vitro activity of moxifloxacin was compared with that of penicillin G, amoxycillin/clavulanate, cefoxitin, erythromycin, clindamycin and metronidazole against 158 isolates associated with periodontal infections. MIC(50)/MIC(90) values of moxifloxacin were respectively 0.06/0.5 mg/l for Porphyromonas gingivalis ...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/s0924-8579(02)00190-5
更新日期:2002-12-01 00:00:00
abstract::The population pharmacokinetics of tobramycin was investigated in a group of 327 adult hospitalized patients receiving once-daily administration of tobramycin at a dose of 7 mg kg(-1). The patients had an average age of 57+/-18 y and an average weight of 65+/-14 kg; 153 of the patients were female. Data, comprised of ...
journal_title:International journal of antimicrobial agents
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更新日期:2000-08-01 00:00:00