R. Bonnet

Publications232
h-index46
Citations8,404
Highly Influential Citations490
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Growing Group of Extended-Spectrum β-Lactamases: the CTX-M Enzymes
  • R. Bonnet
  • Medicine, Biology
  • Antimicrobial Agents and Chemotherapy
  • 1 January 2004
The production of β-lactamases is the predominant cause of resistance to β-lactam antibiotics in gram-negative bacteria. These enzymes cleave the amide bond in the β-lactam ring, rendering β-lactam… Expand
  • 1,432
  • 153
Gut microbiota imbalance and colorectal cancer.
The gut microbiota acts as a real organ. The symbiotic interactions between resident micro-organisms and the digestive tract highly contribute to maintain the gut homeostasis. However, alterations to… Expand
  • 307
  • 18
  • PDF
Non-O157:H7 Stx2-Producing Escherichia coli Strains Associated with Sporadic Cases of Hemolytic-Uremic Syndrome in Adults
ABSTRACT From August 1996 to May 1997, six verotoxin-producingEscherichia coli (VTEC) strains were isolated from stool specimens of adults suffering from hemolytic-uremic syndrome (HUS). All the… Expand
  • 153
  • 18
Complete Genome Sequence of Crohn's Disease-Associated Adherent-Invasive E. coli Strain LF82
BACKGROUND Ileal lesions of Crohn's disease (CD) patients are abnormally colonized by pathogenic adherent-invasive Escherichia coli (AIEC) able to invade and to replicate within intestinal epithelial… Expand
  • 149
  • 18
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Novel Cefotaximase (CTX-M-16) with Increased Catalytic Efficiency Due to Substitution Asp-240→Gly
ABSTRACT Three clinical strains (Escherichia coli Rio-6,E. coli Rio-7, and Enterobacter cloacae Rio-9) collected in 1996 and 1999 from hospitals in Rio de Janeiro (Brazil) were resistant to… Expand
  • 173
  • 17
A Novel CTX-M β-Lactamase (CTX-M-8) in Cefotaxime-ResistantEnterobacteriaceae Isolated in Brazil
ABSTRACT To estimate the diversity of extended-spectrum β-lactamases in Brazil, 18 strains from different species of the familyEnterobacteriaceae exhibiting a positive double-disk synergy test were… Expand
  • 197
  • 14
Atomic resolution structures of CTX-M beta-lactamases: extended spectrum activities from increased mobility and decreased stability.
Extended spectrum beta-lactamases (ESBLs) confer bacterial resistance to third-generation cephalosporins, such as cefotaxime and ceftazidime, increasing hospital mortality rates. Whereas these… Expand
  • 127
  • 12
  • PDF
Diversity of TEM Mutants in Proteus mirabilis
ABSTRACT In a survey of resistance to amoxicillin among clinical isolates ofProteus mirabilis, 10 TEM-type β-lactamases were characterized: (i) the well-known penicillinases TEM-1 and TEM-2, the… Expand
  • 78
  • 12
High Prevalence of Mucosa-Associated E. coli Producing Cyclomodulin and Genotoxin in Colon Cancer
Some Escherichia coli strains produce toxins designated cyclomodulins (CMs) which interfere with the eukaryotic cell cycle of host cells, suggesting a possible link between these bacteria and… Expand
  • 220
  • 10
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Identification of a Variety of Staphylococcus Species by Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry
ABSTRACT Whole-cell fingerprinting by matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) in combination with a dedicated bioinformatic software tool (MALDI… Expand
  • 178
  • 9
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