Abstract:
:Seven new sites leading to increased beta-lactam susceptibility were identified and mapped in Staphylococcus aureus by Tn551 or Tn917 mediated insertional inactivation. Their effect was more pronounced in methicillin resistant than in susceptible strains. Except for inserts each in SmaI-K and SmaI-B, all were located on SmaI-A, which covers 25% of the staphylococcal chromosome. The physical position of the femAB operon involved in the expression of methicillin resistance was mapped on SmaI-A. Close to this site we identified a further site with almost as strong an effect on methicillin resistance as femAB. A second cluster of sites affecting methicillin resistance was identified at approximately 30 kb from the femAB operon, showing that multiple unlinked factors may affect beta-lactam resistance. Interestingly, insert Omega2016 located in SmaI-B produced small colonies and was found to inactivate a gene of the electron transport chain, reminiscent of small colony variants observed in recurrent infections.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Vasilieva E,Labischinski H,Berger-Bächi Bdoi
10.1016/s0924-8579(96)00346-9subject
Has Abstractpub_date
1997-02-01 00:00:00pages
13-21issue
1eissn
0924-8579issn
1872-7913pii
S0924-8579(96)00346-9journal_volume
8pub_type
杂志文章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 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::This study investigated the correlation between fluoroquinolone (ciprofloxacin or levofloxacin) use and rates of fluoroquinolone resistance in Pseudomonas aeruginosa isolates from patients with nosocomial infection at a medical centre in Taiwan. Antibiotic utilisation data were extracted on a monthly basis from the in...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2009.11.007
更新日期:2010-03-01 00:00:00
abstract::Neurological complications of antibiotics are relatively common in renal failure. Central nervous system neurotoxicity due to penicillin and beta-lactam antibiotics is best documented with fewer accounts of ototoxicity, peripheral nerve toxicity and neuromuscular blockade. In the context of risk stratification, the go...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,评审
doi:10.1016/j.ijantimicag.2003.11.004
更新日期:2004-03-01 00:00:00
abstract::Mechanically ventilated patients are at a substantially higher risk for developing nosocomial pneumonia. Overall, there is a relatively constant 1&!TN!150;3% risk per day of developing pneumonia while receiving mechanical ventilation. The sensitivity and specificity of clinical criteria alone for diagnosis of ventilat...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/s0924-8579(98)00037-5
更新日期:1998-08-01 00:00:00
abstract::The efficacy of amoxycillin-clavulanic acid (10 and 15 mg/kg amoxycillin) and erythromycin (20 and 50 mg/kg) was assessed in a gerbil model of otitis media with effusion induced by beta-lactamase-producing Haemophilus influenzae. Animals were divided into groups receiving acetaminophen concomitantly or not receiving i...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/s0924-8579(03)00148-1
更新日期:2003-11-01 00:00:00
abstract::The aim of this study was to evaluate the effect of sodium diclofenac on the bioavailability of amoxicillin. In this randomised, crossover study with a 1-week washout period, 20 volunteers received a 2g oral dose of amoxicillin (Amoxil) (Group 1) or a 2g oral dose of amoxicillin with 100 mg of sodium diclofenac (Volta...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ijantimicag.2006.02.005
更新日期:2006-05-01 00:00:00
abstract:INTRODUCTION:Mixed hepatitis C virus (HCV) genotype (GT) infections are clinically important as different genotypes have varied sensitivities to direct-acting antivirals (DAAs). A high prevalence of mixed GT infections was observed in individuals who inject drugs and had multiple HCV exposures. The prevalence of mixed ...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2019.06.001
更新日期:2019-10-01 00:00:00
abstract::In the 21st century, we face the problems of escalating antibiotic resistance, difficult-to-treat infections and slowed new drug development. Healthcare practitioners are increasingly recognising the importance of good antimicrobial stewardship. Various strategies such as formulary management, prior approval, clinical...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,评审
doi:10.1016/j.ijantimicag.2004.09.001
更新日期:2005-01-01 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::Newer treatment strategies for the management of febrile neutropenic patients are being developed. These include: (a) hospital based oral therapy; (b) early discharge after initial stabilization in-hospital, and (c) out-patient therapy. All strategies are likely to be more successful in patients with short-lived neutr...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,评审
doi:10.1016/s0924-8579(00)00215-6
更新日期:2000-10-01 00:00:00
abstract::Fluoroquinolone (FQ) resistance is usually caused by point mutations within the quinolone resistance-determining regions (QRDRs) of gyrA, gyrB, parC and/or parE. However, little is known about the worldwide increase in FQ-resistant Escherichia coli or, more specifically, about the geographical distribution of QRDR mut...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2009.12.005
更新日期:2010-04-01 00:00:00
abstract::Although cephalosporins are recommended as primary agents, moxifloxacin may be a suitable second-line antibiotic in cardiac surgery, especially if additional Gram-negative coverage is warranted. Cardiopulmonary bypass (CPB) may alter the pharmacokinetics of drugs in numerous ways. Since no such data exist, the aim of ...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2013.01.017
更新日期:2013-05-01 00:00:00
abstract::Wide-spectrum quinolones such as moxifloxacin and levofloxacin as well as high-order cephalosporins such as cefoperazone and cefepime have increased antimicrobial activity. However, little is known about their distribution in fetal blood. Therefore, the aim of this study was to measure and compare maternal and fetal b...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2010.03.011
更新日期:2010-08-01 00:00:00
abstract::We investigated the spread of bla(OXA-51)-type beta-lactamase genes in 200 Acinetobacter spp. clinical strains isolated in Argentina from 1982 to 2005. bla(OXA-51)-type genes were present in all Acinetobacter baumannii isolates tested (n=194), whereas they were not detected in two Acinetobacter haemolyticus, two genom...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2006.03.023
更新日期:2006-08-01 00:00:00
abstract::Exposure of Aspergillus fumigatus to stressful antifungal therapies may result in decreased susceptibility. The aim of the present work was to evaluate the susceptibility to azole and non-azole antifungals of 159 isolates of A. fumigatus collected from cystic fibrosis (CF) patients receiving azole antifungal therapy. ...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2009.12.007
更新日期:2010-04-01 00:00:00
abstract::The pharmacist provides a vital role in the management of antibiotic policy. Consumers and payers demand quality care at a significantly reduced price. It is imperative that health care adapt to the times. Physicians must be involved in all phases of programmes that are viewed as cost saving. These programmes should i...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/s0924-8579(00)00250-8
更新日期:2000-11-01 00:00:00
abstract::The importance of the amino acid sequence in the C-terminal domain of penicillin-binding protein 5 (PBP5) and the levels of PBP5 expression to ampicillin resistance of Taiwan clinical isolates of Enterococcus faecium were studied. Sequence data revealed the existence of 12 amino acid sequence variants within the C-ter...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2006.07.027
更新日期:2006-12-01 00:00:00
abstract::The occurrence of vancomycin-resistant Enterococcus faecium (VREfm) in food is relevant to public health as foodborne VREfm may colonize the gut of consumers and transfer vancomycin resistance genes to the indigenous gut microbiota. Therefore, we determined occurrence and elucidated genetic traits of VREfm in Danish r...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2018.03.019
更新日期:2018-08-01 00:00:00
abstract::The mechanism(s) of resistance or decreased susceptibility to cefepime (FEP) and/or imipenem (IMP) in three consecutive isolates of Enterobacter aerogenes (Ea1, Ea2 and Ea3) cultured from bronchial aspirates of the same patient after treatment with ceftriaxone and FEP were studied. Identification was performed with th...
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
abstract::Acinetobacter baumannii has been associated with several severe hospital-acquired infections such as ventilator-associated pneumonia and meningitis. Sulbactam, a β-lactamase inhibitor, is usually combined with β-lactam antibiotics to treat infections. It has been found that sulbactam alone may be used to treat infecti...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2014.03.004
更新日期:2014-07-01 00:00:00
abstract::Management of community-origin complicated intra-abdominal infections (cIAIs) requires surgical intervention and antimicrobial therapy. This multinational, randomised, double-blind clinical trial carried out in Asia compared the efficacy and safety of moxifloxacin monotherapy and ceftriaxone/metronidazole combination ...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ijantimicag.2009.06.022
更新日期:2009-11-01 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::The evolution of imipenem disk-diffusion susceptibility results of 2652 strains of Klebsiella pneumoniae and 7596 Escherichia coli isolated during the period 2000-2005 were analysed. Screening for production of metallo-beta-lactamases was performed using the EDTA-synergy method. The percentage rate of K. pneumoniae is...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2006.09.010
更新日期:2007-02-01 00:00:00
abstract::Staphylococcus aureus is responsible for life-threatening and difficult-to-treat infections worldwide and antimicrobial resistance is an increasing concern. Whilst acquired resistance has been widely studied, little is known of the contributions from chromosomal determinants that upon inactivation may reduce the susce...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2017.08.024
更新日期:2018-01-01 00:00:00
abstract::Globally, antibiotic resistance continues to be an increasing problem. The emergence of methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), and extended spectrum beta-lactamase-producing Enterobacteriaceae has seriously reduced the number of empirical agents suitable for selecte...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,评审
doi:10.1016/S0924-8579(09)70003-2
更新日期:2008-12-01 00:00:00
abstract::The chequerboard technique was used to look for synergistic combinations of ceftazidime, imipenem and pefloxacin. The synergistic combinations were used in vivo in mice experimentally infected with Escherichia coli, Salmonella typhimurium and Pseudomonas aeruginosa. In vitro ceftazidime/imipenem, ceftazidime/pefloxaci...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/s0924-8579(03)00127-4
更新日期:2003-12-01 00:00:00
abstract::The main objectives in childhood urinary tract infections are rapid recovery from complaints, prevention of urosepsis and infection-related complications as well as the prevention of renal parenchymal damage. Calculated antibiotic therapy should take the local resistance rates of uropathogens into consideration. The c...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章,评审
doi:10.1016/j.ijantimicag.2011.09.006
更新日期:2011-12-01 00:00:00
abstract::The characteristics of 218 Klebsiella pneumoniae isolates from patients with hospital-acquired pneumonia in nine Asian countries were investigated. In total, 92 isolates (42.2%) produced extended-spectrum β-lactamases (ESBLs), amongst which 67 (72.8%) possessed CTX-M ESBL genes; CTX-M-15 was the major ESBL (55 isolate...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2011.03.020
更新日期:2011-08-01 00:00:00
abstract::Linezolid is an important oxazolidinone antimicrobial for the treatment of infections caused by Gram-positive cocci, especially vancomycin-resistant enterococci and oxacillin-resistant Staphylococcus aureus (ORSA). Since its introduction, however, ribosomal mutations have been detected that produce resistance; thus, l...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2005.02.019
更新日期:2005-07-01 00:00:00