Abstract：
:S fimbrial adhesins (Sfa) represent virulence factors of E. coli wild-type strains causing urinary tract infections and meningitis of the new born. In order to determine the influence of subinhibitory concentration of antibiotics on the expression of the sfa gene cluster, a wild-type strain carrying the lacZ gene, coding for the enzyme beta-galactosidase fused to the sfa determinant was used. The expression of lacZ which was under the control of the sfa wild-type promoters, was now equivalent to the sfa gene expression of wild-type strain 536. With this strain the influence of subinhibitory concentrations of 28 antibiotics on the expression of the sfa determinant was studied. The expression was strongly suppressed by a treatment of the wild-type fusion strain by aztreonam, gentamicin, clindamycin and trimethoprim; the latter had a dramatic effect on sfa expression. It was further shown for clindamycin and trimethoprim that the reduction of sfa gene expression was dependent on the concentration of the antibiotics. In contrast imipinem, amphotericin B and rifampicin weakly stimulated sfa expression. We conclude that gene fusions between virulence-associated loci and indicator genes in wild-type pathogens are useful to study virulence modulation due to subinhibitory concentration of antibiotics on the genetic level.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Hacker J,Ott M,Hof Hdoi
10.1016/0924-8579(93)90060-isubject
Has Abstractpub_date
1993-01-01 00:00:00pages
263-70issue
4eissn
0924-8579issn
1872-7913pii
0924-8579(93)90060-Ijournal_volume
2pub_type
杂志文章abstract：:Integrase strand transfer inhibitors (INSTIs) are the most recent class of antiretroviral drugs with potent and durable antiviral activity used to treat human immunodeficiency virus type 1 (HIV-1) infection. However, development of drug resistance increases the risk of treatment failure, disease progression and mortal...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.ijantimicag.2019.08.008
更新日期：2019-11-01 00:00:00
abstract：:In vitro and in vivo anti-Candida albicans and anti-Aspergillus fumigatus activities of NND-502, a new imidazole-antimycotic, were compared with those of fluconazole (FCZ), itraconazole (ITZ) and/or amphotericin B (AmB). NND-502 exhibited strong in vitro antifungal activity against both fungal species; its MIC against...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(99)00076-x
更新日期：1999-08-01 00:00:00
abstract：:Leptospirosis is the most common zoonotic disease and is endemic worldwide. The antibiotic susceptibilities of Leptospira strains isolated from both humans and animals are poorly documented. This issue is particularly important for isolates from food-producing animals which are regularly exposed to antibiotic treatmen...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2017.12.024
更新日期：2018-05-01 00:00:00
abstract：:Infestation with parasitic helminths is a common problem in human populations of third world countries and is ubiquitous in livestock and other domestic animals. The cell-membrane efflux pump, P-glycoprotein (Pgp), appears to contribute to anthelmintic resistance. Pgp have been identified from both phyla of parasitic ...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/s0924-8579(03)00221-8
更新日期：2003-09-01 00:00:00
abstract：:Based on past information from the literature and our own review, it appears that imipenem can be used effectively as an initial empirical therapy of febrile neutropenia, as a monotherapy, even in patients with haematological malignancies. The response rate is outstanding in microbiologically documented infections, na...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/s0924-8579(03)00002-5
更新日期：2003-05-01 00:00:00
abstract：:Invasive aspergillosis of the central nervous system has a mortality rate exceeding 90%. We describe a 29-year-old woman with a medical history of chronic polyarthritis who developed a proven rhinocerebral Aspergillus fumigatus infection refractory to first-line treatment with liposomal amphotericin B. The patient res...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2006.04.006
更新日期：2006-09-01 00:00:00
abstract：:Three pharmacokinetic/pharmacodynamic parameters--(i) the peak concentration to the minimum inhibitory concentration ratio (C(max)/MIC); (ii) the area under the concentration-time curve to MIC ratio (AUC(24h)/MIC); and (iii) the time the concentration exceeds the MIC (T>MIC)--are important predictors of the clinical e...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/s0924-8579(01)00406-x
更新日期：2001-01-01 00:00:00
abstract：:The aim of this study was to determine the clinical characteristics, molecular epidemiology and biofilm production of Acinetobacter baumannii clinical isolates obtained from a tertiary-care hospital in Mexico. Clinical isolates of A. baumannii (n=152) isolated from 2007 to 2012 were included. Clonal diversity was anal...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2014.10.022
更新日期：2015-03-01 00:00:00
abstract：OBJECTIVES:To compare the in vitro activity of linezolid with 12 other antimicrobials against 190 strains of the coryneform bacteria, including 60 strains of C. amycolatum, 30 of C. striatum, 30 of C. jeikeium, 10 of C. urealyticum, 20 of B. casei, 20 of D. hominis and 20 of T. otitidis. METHODS:Minimum inhibitory con...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2006.11.032
更新日期：2007-06-01 00:00:00
abstract：:Carbapenem-resistant Acinetobacter baumannii has spread rapidly across China and is currently reported to be a worldwide nosocomial menace. In light of its increasing clinical significance, this study aimed to investigate the molecular epidemiology of carbapenem-resistant and carbapenem-susceptible isolates obtained f...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2013.06.019
更新日期：2013-10-01 00:00:00
abstract：:Carbapenemase-producing Klebsiella pneumoniae (CP-Kp) are currently among the most important nosocomial pathogens in many geographic regions. A retrospective study was conducted between 2010 and 2014 in four hospitals located in a high-prevalence area (Athens, Greece) to describe the clinical features, treatment and o...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2016.01.011
更新日期：2016-04-01 00:00:00
abstract：:The purpose of this report was to compare two different methods for dose optimisation of antimicrobials. The probability of target attainment (PTA) was calculated using Monte Carlo simulation to predict the PK/PD target of fT>MIC or modelling and simulation of time-kill curve data. Ceftobiprole, the paradigm compound,...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2013.08.016
更新日期：2014-01-01 00:00:00
abstract：:Using a murine model of disseminated infection by Fusarium verticillioides, the efficacy of liposomal amphotericin (L-AmB) B at 10mg/kg body weight once daily and terbinafine (TRB) at 150 mg/kg body weight twice daily, alone and in combination, was evaluated. The combination of L-AmB with TRB was the only treatment ab...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2010.08.008
更新日期：2011-01-01 00:00:00
abstract：:In this study, the antimicrobial susceptibilities and prevalence of plasmid-mediated quinolone resistance determinants amongst Salmonella enterica serotype Typhimurium isolates from hospitalised paediatric patients with diarrhoea in China were investigated. In total, 40 (64.5%) of 62 S. Typhimurium isolates were resis...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2010.10.021
更新日期：2011-02-01 00:00:00
abstract：:Eighty three patients with neutropenia and cancer were randomised to receive either 1 g meropenem tds or amikacin 15 mg/kg single dose daily plus ceftazidime 2 g tds. No prophylactic antibiotics were allowed before entry to the trial. Seventy seven patients were available for analysis. Infection was microbiologically ...
journal_title：International journal of antimicrobial agents
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0924-8579(99)00096-5
更新日期：1999-09-01 00:00:00
abstract：:The international (non-USA) ZAAPS Program has accumulated 4 years of linezolid resistance surveillance results tracking infections caused by organisms with evolving resistance profiles. The major organism groups monitored were: Staphylococcus aureus and coagulase-negative staphylococci (including methicillin [oxacilli...
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：:Fresh clinical isolates collected from November 1, 1992 through November 1, 1993, were tested by agar dilution against 26 different antimicrobial agents including FK037 and l-ofloxacin. Among the 10 040 organisms tested were Staphylococcus aureus (n = 1222), methicillin-resistant Staphylococcus aureus (MRSA, n = 455),...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/0924-8579(95)00039-9
更新日期：1996-04-01 00:00:00
abstract：:The celestial rise in antibiotic resistance among Gram-negative bacteria has challenged both the scientific and pharmaceutical sectors. The hallmark of this general increase is the unbridled dissemination of carbapenem resistance genes, namely KPC, OXA and metallo-β-lactamase variants. In particular, the media attenti...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,评审
doi：10.1016/S0924-8579(10)70004-2
更新日期：2010-11-01 00:00:00
abstract：:The Bureau of National Health Insurance (BNHI) of Taiwan issued a new reimbursement regulation effective from 1 February 2001 forbidding the use of antimicrobials in ambulatory patients with upper respiratory infections (URI) without evidence of bacterial infection. We evaluated the effect of this regulation by analys...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2003.10.013
更新日期：2004-05-01 00:00:00
abstract：:The purpose of this study was (i) to determine the optimal dosage of teicoplanin for each patient group stratified by renal function and weight based on a population pharmacokinetic model and observed distribution of patient characteristics and (ii) to develop new simplified dosing regimens designed to achieve 15-30 μ...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2012.05.025
更新日期：2012-10-01 00:00:00
abstract：:In this study, the prevalence and characteristics of metallo-β-lactamase (MBL)-producing Pseudomonas aeruginosa isolates in South Korea were investigated. Among 215 P. aeruginosa isolates collected from eight hospitals, 77 (35.8%) and 72 (33.5%) were resistant to imipenem and meropenem, respectively. Of the 77 imipene...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2017.01.023
更新日期：2017-06-01 00:00:00
abstract：:Quinolone and macrolide resistance of Campylobacter jejuni and Campylobacter coli mainly depend on a mutation in gyrA and in 23S rDNA, respectively. In order to detect quinolone and/or macrolide resistant C. jejuni and C. coli strains, a macrolide and quinolone line probe assay (MQ-LiPA) was developed and 42 C. jejuni...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(03)00178-x
更新日期：2003-10-01 00:00:00
abstract：:Nacubactam is a novel non-β-lactam diazabicyclooctane β-lactamase inhibitor under development for the treatment of serious Gram-negative infections. This study assessed the efficacy of human-simulated epithelial lining fluid (ELF) exposure of nacubactam in combination with meropenem against AmpC-overproducing (n=4) an...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2019.10.019
更新日期：2020-02-01 00:00:00
abstract：:The activity of the novel, fully synthetic fluorocycline antibiotic TP-6076 against carbapenem-resistant Acinetobacter baumannii (CRAB) isolates with defined carbapenem resistance mechanisms was compared against reference antimicrobials with known activity against Acinetobacter spp. The susceptibility of 323 non-dupli...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2019.10.010
更新日期：2020-01-01 00:00:00
abstract：:Tigecycline is highly active against various drug-resistant bacteria. The US Food and Drug Administration (FDA) recently issued a black box warning for tigecycline owing to an associated increase in all-cause mortality. Clinical breakpoints of antibiotics are vital in susceptibility testing of pathogens for the select...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2016.12.008
更新日期：2017-04-01 00:00:00
abstract：:Ceftriaxone was introduced into clinical practice in the USA in 1985 and was the first extended-spectrum (third-generation) cephalosporin approved for once-daily treatment of patients with Gram-positive or Gram-negative infections. Review of ceftriaxone activity is important given its continued use since the mid-1980s...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/s0924-8579(02)00010-9
更新日期：2002-05-01 00:00:00
abstract：UNLABELLED:Paper-based interventions have been shown to stimulate switching from intravenous (i.v.) to oral (p.o.) antibiotic therapies. Shorter i.v. durations are associated with a lower risk of iatrogenic infections as well as reduced workload and costs. The purpose of this study was to determine whether automated el...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2015.06.013
更新日期：2015-10-01 00:00:00
abstract：:Vancomycin is a glycopeptide antibiotic widely used in the management of meticillin-resistant Staphylococcus aureus (MRSA). Guidelines currently recommend vancomycin be administered by intermittent infusion, despite recent research suggesting that continuous infusion (CI) may be associated with lower rates of vancomyc...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.ijantimicag.2015.04.013
更新日期：2015-09-01 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...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2010.12.018
更新日期：2011-04-01 00:00:00
abstract：:The purpose of this study was to characterise the metallo-beta-lactamase VIM-6 and the genetic environment of the bla(VIM-6) gene. The bla(VIM-6) gene was cloned into an Escherichia coli expression system and the purified VIM-6 enzyme was obtained. VIM-6 has an isoelectric point of 4.9 and a molecular weight of 28.368...
journal_title：International journal of antimicrobial agents
pub_type： 杂志文章
doi：10.1016/j.ijantimicag.2008.05.017
更新日期：2008-11-01 00:00:00
