Abstract：
:The antimicrobial activities of levofloxacin, clarithromycin and KRM-1648 against Mycobacterium tuberculosis (MTB) and Mycobacterium avium complex (MAC) residing in Mono Mac 6 human macrophage-like cells (MM6-Mphis) and A-549 human type II alveolar epithelial cells (A-549 cells) were studied. We measured the antimicrobial activity of test drugs in terms of effects on the behaviour of intracellular organisms during a 7-day cultivation of MTB- or MAC-infected cells in the medium containing the drugs at Cmax doses. Microbicidal action of levofloxacin against intracellular MTB within A-549 cells was markedly less than its activity against the same organisms in MM6-Mphis. The same effect was also noted for the action of KRM-1648 against MAC organisms but this did not occur with clarithromycin. The MIC of KRM-1648 for MAC multiplying within A-549 cells was 32 times larger than that for MAC residing in MM6-Mphis. These findings indicate that MTB and MAC organisms replicating in the type II lung epithelial cells resist the action of certain antimycobacterial agents such as quinolones and rifamycin derivatives but not when the organisms are contained in macrophages. It appears that the antimicrobial action of certain drugs against intracellular mycobacteria is differentially manifested depending on the types of host cells, i.e. professional phagocytes (MM6-Mphis) or non-professional phagocytes (A-549cells), in which the organisms are contained.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Sato K,Tomioka H,Akaki T,Kawahara Sdoi
10.1016/s0924-8579(00)00163-1subject
Has Abstractpub_date
2000-09-01 00:00:00pages
25-9issue
1eissn
0924-8579issn
1872-7913pii
S0924-8579(00)00163-1journal_volume
16pub_type
杂志文章abstract：:The incidence of severe group A streptococcal infection and the streptococcal toxic shock syndrome has increased since 1986. In contrast to earlier times, aggressive streptococal infection is now more likely to affect patients between 20 and 50 years of age who do not have predisposing underlying diseases. Its viral-l...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
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更新日期：1994-01-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2008.09.006
更新日期：2009-03-01 00:00:00
abstract：:The in vitro activity of ciprofloxacin, ofloxacin, levofloxacin and moxifloxacin against strains of Mycobacterium tuberculosis was studied. Moxifloxacin and levofloxacin showed the greatest activity having an MIC(90) of 1 mg/l. The MIC(90) for ofloxacin was 2 mg/l and for ciprofloxacin 4 mg/l. Further studies should b...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(00)00337-x
更新日期：2001-03-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2016.06.013
更新日期：2016-10-01 00:00:00
abstract：:The clinical significance and management of asymptomatic bacteriuria (ASB) differs according to different groups of patients. ASB requires antibiotic treatment in pregnant women, children aged 5-6 years and prior to invasive genitourinary procedures. However, there is a consensus that ASB in the elderly, healthy schoo...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
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更新日期：2003-10-01 00:00:00
abstract：:The objective of this study was to assess the comparative effectiveness and safety of antistaphylococcal penicillins (ASPs) and cephalosporins for the definitive treatment of patients with meticillin-susceptible Staphylococcus aureus (MSSA) bacteraemia. PubMed and Scopus electronic databases were searched up to Decemb...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,meta分析,评审
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更新日期：2014-12-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2008.04.028
更新日期：2008-11-01 00:00:00
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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：2002-12-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 临床试验,杂志文章,多中心研究
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更新日期：2011-10-01 00:00:00
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更新日期：2000-01-01 00:00:00
abstract：OBJECTIVES:There has been recent renewed interest in historical antibiotics because of the increased antibiotic-resistant bacterial strains. Latamoxef, a semi-synthetic oxacephem antibiotic developed in 1980s, has recently been brought back into use for treatment of infections in newborns; however, it is still used off...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
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更新日期：2019-03-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2017-05-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2006.08.049
更新日期：2007-03-01 00:00:00
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pub_type： 杂志文章
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更新日期：1993-01-01 00:00:00
abstract：:Antimicrobial resistance and sulphonamide resistance determinants were studied in 20 co-trimoxazole resistant Escherichia coli in faecal samples from healthy children in Bolivia and Peru. Methods used were disc diffusion susceptibility tests, PCR, sequence analysis and plasmid conjugation assays. All isolates but one ...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2004.12.004
更新日期：2005-04-01 00:00:00
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更新日期：2021-01-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
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更新日期：2008-11-01 00:00:00
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pub_type： 杂志文章
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pub_type： 杂志文章,评审
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更新日期：2009-01-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2016-08-01 00:00:00
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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：2009-11-01 00:00:00
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pub_type： 杂志文章
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更新日期：2003-12-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/j.ijantimicag.2015.10.011
更新日期：2015-12-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2006.01.005
更新日期：2006-06-01 00:00:00
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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：2019-01-01 00:00:00
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journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2006.09.025
更新日期：2007-03-01 00:00:00
abstract：:Since most infectious microorganisms inevitably develop resistance to any agents used to combat them, there has been a constant need to produce improved, more potent, antimicrobials. At least in part, the emergence and spread of resistant organisms has been provoked by inappropriate over-use of antibacterials. In the ...
journal_title：International journal of antimicrobial agents
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.ijantimicag.2007.08.016
更新日期：2007-12-01 00:00:00
abstract：:Skin bacterial colonization/infection is a frequent cause of morbidity in patients with chronic wounds and allergic/inflammatory skin diseases. This study aimed to develop a novel approach to eradicate meticillin-resistant Staphylococcus aureus (MRSA) from human skin. To achieve this, the stability and antibacterial a...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2019.07.014
更新日期：2019-11-01 00:00:00
abstract：:As treatment options for critically ill patients with multidrug-resistant bacteria diminish, older antibiotics such as fosfomycin are being investigated for use as last-resort drugs. Fosfomycin is a broad-spectrum antibiotic with activity both against Gram-positive and Gram-negative bacteria. The aim of this review wa...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/j.ijantimicag.2013.05.018
更新日期：2013-10-01 00:00:00
