The drug sensitivity of ESBL-producing Escherichia coli was detected and counted. The distribution of CTX-M drug resistance genotypes were analyzed by PCR and gene sequencing. Different pH environment was established in vitro to evaluate the effect of pH on drug resistance of CTX-M resistant ...
Spread of Escherichia coli Strains with High-Level Cefotaxime and Ceftazidime Resistance between the Community, Long-Term Care Facilities, and Hospital Ins... All isolates from the four clusters expressed the extended-spectrum beta-lactamase (ESBL) CTX-M-15. This enzyme was also present in 8 (30...
12.Distribution and Property of Resistance of CTX-M-Type ESBLs-producing Escherichia Coli Isolated from Bengbu Area;蚌埠地区产CTX-M型超广谱β-内酰胺酶大肠埃希菌的分布与耐药特征 13.Cloning and expression of CTX-M-38 β-lactamase geneCTX-M-38型β-内酰胺酶的克隆与表达 14.CTX-M-38,a novel ...
Both CTX-M-80 with pI of 9.0 and CTX-M-81 with pI of 8.4 were extended-spectrum β-lactamases ( ESBLs ). The results of susceptibility testing demonstrated two enzymes were highly activity against broad spectrum β-lactams, but the level of resistance was reduced with the addition of β-...
6.Antibiotic Resistance and β-Lactamases Detection of Serratia沙雷菌属耐药现状及β-内酰胺酶检测 7.Study of OXA Extended Spectrum β-lactamases(ESBLs);超广谱β-内酰胺酶OXA亚型的研究 8.The Cloning of the DHA-1 Tape β-lactamase’s Gene and Its Structure;DHA-1型β-内酰胺酶基因克隆及其结构 ...
The 17 isolates were shown to have blaCTX-M genes that were associated with large plasmids (≥58 kb), which also carried a tetracycline resistance gene, tet(A), and various aminoglycoside resistance genes. Two CTX-M-type genes were sequenced and had amino acid sequences indistinguishable from...
The blaNDM-1 gene was flanked by genetic elements that are distinct from those observed in other blaNDM-1-positive plasmids, including the groES and groEL chaperonin genes. This plasmid harboured the ESBL gene blaCTX-M-15 together with the quinolone resistance gene qnrB1. In addition, it ...
1.1 × 10− 3-1.9 × 10− 3) compared to the ESBL genes (range: 2.3 × 10− 3-4.8 × 10− 2). Resistance to non-β-lactam antimicrobials was co-transferred in some cases (Table3). The most frequently co-transferred phenotypes were resistance to...
Le gene [bla.sub.CTXM-15] etait genetiquement lie a la sequence d'insertion ISEcp1B et etait transferable par conjugaison a partir de trois isolats. Une surveillance reguliere des mecanismes de resistance, l'elaboration d'une strategie preventive et l'usage plus rationnel et opportun des ...
ESBLs-genes were identified by PCR and sequencing. Results: A total of seven E. coli strains with resistance to third generation cephalosporins were detected in faeces (n=1), floor of milking parlor (n=1), teats (n=3) and milk samples (n=2) of cattle. In these isolates, cefotaxime/...