2012
DOI: 10.1016/j.molmed.2012.03.003
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Carbapenem resistance in Enterobacteriaceae: here is the storm!

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Cited by 826 publications
(685 citation statements)
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“…Although isolates of Gram-negative bacteria that produce ESBLs may also show some degree of reduced susceptibility to carbapenems if they also have reduced permeability due to loss of outer membrane porins [68], the major mechanism of resistance to carbapenems involves the production of carbapenem-hydrolysing b-lactamases called carbapenemases. A range of carbapenemases have been identified to date and include representatives of Ambler b-lactamase classes A, B (metallo-enzymes) and D (OXA enzymes) [69]. In terms of the carbapenemases seen in the UK, analysis of carbapenemase-producing Gram-negative isolates referred on a voluntary basis to the national Reference Laboratory ( figure 5) shows that a range of enzymes have been seen including NDM-1, KPC, IMP, VIM and OXA-48 [70,71].…”
Section: (I) Enhanced Surveillance Of Methicillin-resistant Staphylocmentioning
confidence: 99%
“…Although isolates of Gram-negative bacteria that produce ESBLs may also show some degree of reduced susceptibility to carbapenems if they also have reduced permeability due to loss of outer membrane porins [68], the major mechanism of resistance to carbapenems involves the production of carbapenem-hydrolysing b-lactamases called carbapenemases. A range of carbapenemases have been identified to date and include representatives of Ambler b-lactamase classes A, B (metallo-enzymes) and D (OXA enzymes) [69]. In terms of the carbapenemases seen in the UK, analysis of carbapenemase-producing Gram-negative isolates referred on a voluntary basis to the national Reference Laboratory ( figure 5) shows that a range of enzymes have been seen including NDM-1, KPC, IMP, VIM and OXA-48 [70,71].…”
Section: (I) Enhanced Surveillance Of Methicillin-resistant Staphylocmentioning
confidence: 99%
“…Bactérias pertencentes a esta família são isoladas com frequência em amostras biológicas e são distribuídas amplamente na natureza, são encontradas no solo, água, plantas e, no trato gastrointestinal de seres humanos e animais (1) . Algumas características importantes dos membros desta família, são a capacidade de disseminar facilmente entre humanos, por transmissão cruzada através das mãos, bem como alimentos e águas contaminadas e de adquirir material genético através de transferência horizontal de genes, mediada por plasmídeos e transposons (2) .…”
Section: Gênero Enterobacterunclassified
“…A resistência aos β-lactâmicos pode ser associada à três mecanismos: I) limitação do acesso intracelular da droga através da sua membrana externa, por meio da impermeabilidade ao antibiótico (perda de porina de membrana externa e bomba de efluxo), associado a uma produção de enzimas do tipo AmpC cefalosporinase e ou β-lactamases de espectro estendido ESBL; II) degradação do antibiótico por meio de enzimas hidrolisadoras da droga como a produção de carbapenemases do tipo serina e metalo-β-lactamases e III) proteção dos alvos da droga por meio da alteração das PBPs (2,(36)(37)(38) , como apresentado na Figura 1, a seguir.…”
Section: Mecanismos De Resistência Aos β-Lactâmicosunclassified
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