Results 21 to 30 of about 71,036 (261)

New CTX-M Group Conferring β-Lactam Resistance: A Compendium of Phylogenetic Insights from Biochemical, Molecular, and Structural Biology

Biology, 2022
The production of extended-spectrum β-lactamases (ESBLs) is the main defense mechanism found in Gram negative bacteria. Among all the ESBLs, the CTX-M enzymes appear as the most efficient in terms of dissemination in different epidemiological contexts ...
Jacinta Mendonça, Carla Guedes, Carina Silva, Sara Sá, Marco Oliveira, Gustavo Accioly, Pilar Baylina, Pedro Barata, Cláudia Pereira, Ruben Fernandes   +9 more
doaj   +1 more source

Characterization of extended-spectrum β-lactamases produced by Escherichia coli isolated from hospitalized and nonhospitalized patients : emergence of CTX-M-15-producing strains causing urinary tract infections [PDF]

, 2010
Extended-spectrum β-lactamase-producing Escherichia coli isolates were obtained from hospitalised and non-hospitalised patients in Belgium between August 2006 and November 2007.
Butaye, Patrick, Claeys, Geert, Dewulf, Jeroen, Haesebrouck, Freddy, Herman, Lieve, Heyndrickx, Marc, Lontie, Marc, Martel, An, Persoons, Davy, Smet, Annemieke, Van Meensel, Britt   +10 more
core   +1 more source

CTX-M-137, a hybrid of CTX-M-14-like and CTX-M-15-like β-lactamases identified in an Escherichia coli clinical isolate [PDF]

Journal of Antimicrobial Chemotherapy, 2014
To characterize a novel CTX-M chimera, CTX-M-137, from Escherichia coli clinical isolates in China.Isolates were collected from five hospitals between 22 February 2009 and 20 December 2011. Resistance genes were investigated by PCR. blaCTX-M-137 was cloned and purified for kinetic measurements.
Guo-Bao, Tian, Ying-Min, Huang, Zhi-Li, Fang, Yun, Qing, Xue-Fei, Zhang, Xi, Huang   +5 more
openaire   +2 more sources

Low-virulence phylogenetic background of CTX-M-producing Escherichia coli isolated from extraintestinal infections

Journal of Infection in Developing Countries, 2013
This item has no abstract. Follow the links below to access the full text.
Andyara L. Paiva, Nilton Lincopan, Ketrin C Silva, Patrícia R Neves, Andrea M Moreno, John A McCulloch, Claudete S Astolfi-Ferreira, Antonio JP Ferreira   +7 more
doaj   +1 more source

Massive Increase, Spread, and Exchange of Extended Spectrum {beta}-Lactamase-Encoding Genes Among Intestinal Enterobacteriaceae in Hospitalized Children With Severe Acute Malnutrition in Niger. [PDF]

, 2011
Background. From the time of CTX-M emergence, extended-spectrum β-lactamase-producing enterobacteria (ESBL-E) have spread worldwide in community settings as well as in hospitals, particularly in developing countries.
Andremont, A, Angebault, C, Armand-Lefèvre, L, Barbier, F, de Rekeneire, N, El Mniai, A, Hugede, H-C, Jacquier, H, Janssens, A-C, Page, A-L, Raskine, L, Ruppé, E, Sayadi, S, Woerther, P-L   +13 more
core   +2 more sources

Characterization of CTX-M-14 and CTX-M-15 Producing Escherichia coli Strains Causing Neonatal Sepsis [PDF]

Microbial Drug Resistance, 2014
Neonatal sepsis is a disease affecting newborns ≤1 month of age with clinical symptoms and positive blood cultures. The number of Escherichia coli strains causing neonatal sepsis resistant to the antibiotics used in the treatment is increasing. In this study, two E. coli
Sáez-López, Emma, Guiral Vilalta, Elisabet, López, Yuly, Montero, Ignacio, Bosch Mestres, Jordi, Vila Estapé, Jordi, Soto González, Sara M.   +6 more
openaire   +3 more sources

Acquisition and Loss of CTX-M-Producing and Non-Producing Escherichia coli in the Fecal Microbiome of Travelers to South Asia

mBio, 2018
Over 80% of travelers from the United Kingdom to the Indian subcontinent acquire CTX-M-producing Escherichia coli (CTX-M-EC), but the mechanism of CTX-M-EC acquisition is poorly understood.
Edward R. Bevan, Alan McNally, Christopher M. Thomas, Laura J. V. Piddock, Peter M. Hawkey   +4 more
doaj   +1 more source

Novel chromosomal insertions of ISEcp1-bla CTX-M-15 and diverse antimicrobial resistance genes in Zambian clinical isolates of Enterobacter cloacae and Escherichia coli

Antimicrobial Resistance and Infection Control, 2021
Background The epidemiology of extended-spectrum β-lactamases (ESBLs) has undergone dramatic changes, with CTX-M-type enzymes prevailing over other types. bla CTX-M genes, encoding CTX-M-type ESBLs, are usually found on plasmids, but chromosomal location
Misheck Shawa, Yoshikazu Furuta, Gillan Mulenga, Maron Mubanga, Evans Mulenga, Tuvshinzaya Zorigt, Christone Kaile, Manyando Simbotwe, Atmika Paudel, Bernard Hang’ombe, Hideaki Higashi   +10 more
doaj   +1 more source

Detection of Clones B2-ST131-C2 and A-ST617 in Escherichia coli Producing Both CTX-M-15 and CTX-M-27 from Tunisian Community Patients

Antibiotics, 2022
During a two-month period (2017–2018), 336 urine samples positive for Escherichia coli were collected from Tunisian patients. Of the 336 samples, 266 were collected from community patients and 70 from hospital settings.
Amel Mhaya, Rahma Trabelsi, Sabine Aillerie, Fatima M’Zali, Dominique Bégu, Slim Tounsi, Radhouane Gdoura, Corinne Arpin   +7 more
doaj   +1 more source

Molecular epidemiology of CTX-M-producing escherichia coli isolates at a tertiary medical center in western pennsylvania [PDF]

, 2009
A combination of phenotypic and genotypic methods was used to investigate 70 unique Escherichia coli clinical isolates identified as producing extended-spectrum beta-lactamases (ESBLs) at a medical center in Pittsburgh, PA, between 2007 and 2008.
Adams-Haduch, Jennifer M., Doi, Yohei, Ewan, Lindsay, Muto, Carlene A., Pasculle, Anthony W., Paterson, David L., Sidjabat, Hanna E., Tian, Guo-Bao   +7 more
core   +1 more source