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https://www.readbyqxmd.com/read/28504818/characterization-of-escherichia-coli-clinical-isolates-causing-urinary-tract-infections-in-the-community-of-chilpancingo-mexico
#1
Jesús A Hernández-Vergara, Verónica I Martínez-Santos, Romina B Radilla-Vázquez, Jesús Silva-Sánchez, Amalia Vences-Velásquez, Natividad Castro-Alarcón
Escherichia coli is the main cause of urinary tract infections (UTI) in ambulatory patients, especially strains belonging to the B2 phylogenetic group and ST131 clonal group. Antibiotic treatment is usually administered empirically; however, it is not always effective due to bacterial multidrug resistance and the production of extended spectrum β-lactamases (ESBLs). The aim of this study was to characterize E. coli clinical isolates from patients with UTI in a community of the State of Guerrero, Mexico. From January to August 2014, 134 clinical isolates of E...
December 2016: International Microbiology: the Official Journal of the Spanish Society for Microbiology
https://www.readbyqxmd.com/read/28456703/antimicrobial-susceptibility-and-mechanisms-of-fosfomycin-resistance-in-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-strains-from-urinary-tract-infections-in-wenzhou-china
#2
Wenzi Bi, Bin Li, Jiangning Song, Youliang Hong, Xiaoxiao Zhang, Haiyang Liu, Hong Lu, Tieli Zhou, Jianming Cao
Fosfomycin in combination with various antibiotics represents an excellent clinically efficacious regimen for the treatment of urinary tract infections (UTIs) caused by extended-spectrum β-lactamase (ESBL)-producing Escherichia coli. Underlying mechanisms of fosfomycin resistance remain largely uncharacterised. To investigate the antibacterial efficacy of fosfomycin against ESBL-producing E. coli, 356 non-repetitive ESBL-producing E. coli clinical isolates were collected from urine specimens from patients with UTI in Wenzhou, China, from January 2011 to December 2015...
April 26, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28399424/resistance-among-gram-negative-eskape-pathogens-isolated-from-hospitalized-patients-with-intra-abdominal-and-urinary-tract-infections-in-latin-american-countries-smart-2013-2015
#3
James A Karlowsky, Daryl J Hoban, Meredith A Hackel, Sibylle H Lob, Daniel F Sahm
Gram-negative ESKAPE pathogens (Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are important etiologic agents of nosocomial infection that are frequently resistant to broad-spectrum antimicrobial agents. Gram-negative ESKAPE pathogens were collected from hospitalized patients in 11 Latin American countries from 2013 to 2015 as part of the Study for Monitoring Antimicrobial Resistance Trends (SMART) global surveillance program. In total, 2113 isolates from intra-abdominal infections (IAI) and 970 isolates from urinary tract infections (UTI) were tested against antimicrobial agents using standardized CLSI broth microdilution methodology...
April 8, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28377310/risk-factors-for-extended-spectrum-beta-lactamase-producing-escherichia-coli-urinary-tract-infection-in-the-community-in-denmark-a-case-control-study
#4
Mette Søgaard, Uffe Heide-Jørgensen, Jan P Vandenbroucke, Henrik C Schønheyder, Christina Mje Vandenbroucke-Grauls
OBJECTIVE: To verify the role of proton pump inhibitors (PPI) and nitrofurantoin, which have appeared as novel risk factors for carriage of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli, as risk factors for ESBL E.coli urinary tract infection (UTI). We included known risk factors to ascertain whether our findings are comparable with previous studies. METHODS: Population-based case-control study including 339 cases with community-onset ESBL E...
April 1, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28285420/fosfomycin-and-comparator-activity-against-select-enterobacteriaceae-pseudomonas-and-enterococcus-urinary-tract-infection-isolates-from-the-united-states-in-2012
#5
Tiffany R Keepers, Marcela Gomez, Chris Celeri, Kevin M Krause, Donald Biek, Ian Critchley
INTRODUCTION: Fosfomycin is a broad-spectrum cell wall active agent that inhibits the MurA enzyme involved in peptidoglycan synthesis and is FDA-approved for treatment of uncomplicated urinary tract infections (UTIs) caused by Escherichia coli and Enterococcus faecalis in women. Data regarding the susceptibility of recent UTI isolates to fosfomycin are limited. METHODS: This study compared the fosfomycin susceptibility of 658 US UTI isolates with susceptibility to ciprofloxacin, levofloxacin, nitrofurantoin, and trimethoprim/sulfamethoxazole (SXT)...
March 11, 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/28264656/antimicrobial-susceptibilities-of-aerobic-and-facultative-gram-negative-bacilli-isolated-from-chinese-patients-with-urinary-tract-infections-between-2010-and-2014
#6
Qiwen Yang, Hui Zhang, Yao Wang, Zhipeng Xu, Ge Zhang, Xinxin Chen, Yingchun Xu, Bin Cao, Haishen Kong, Yuxing Ni, Yunsong Yu, Ziyong Sun, Bijie Hu, Wenxiang Huang, Yong Wang, Anhua Wu, Xianju Feng, Kang Liao, Yanping Luo, Zhidong Hu, Yunzhuo Chu, Juan Lu, Jianrong Su, Bingdong Gui, Qiong Duan, Shufang Zhang, Haifeng Shao, Robert E Badal
BACKGROUND: The objective of this study was to investigate the distribution and susceptibility of aerobic and facultative Gram-negative bacilli isolated from Chinese patients with UTIs collected within 48 h (community acquired, CA) or after 48 h (hospital acquired, HA) of hospital admission. METHODS: From 2010 to 2014, the minimum inhibitory concentrations (MICs) of 12 antibiotics for 4,332 aerobic and facultative Gram-negative bacilli, sampled in 21 hospitals in 16 cities, were determined by the broth microdilution method...
March 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28193648/pharmacodynamics-of-finafloxacin-ciprofloxacin-and-levofloxacin-in-serum-and-urine-against-tem-and-shv-type-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-isolates-from-patients-with-urinary-tract-infections
#7
A Dalhoff, S Schubert, A Vente
The pharmacodynamics of finafloxacin, ciprofloxacin, and levofloxacin against extended-spectrum-β-lactamase (ESBL)-producing Enterobacteriaceae isolates were compared. Since quinolones lose activity in acidic media, and particularly in urine, their activities were tested in parallel under conventional conditions and in acidic artificial urine. For this purpose, TEM- and SHV-type ESBL-producing Escherichia coli and Klebsiella pneumoniae strains and their wild-type counterparts were exposed in a modified Grasso model to simulated concentrations of drugs in serum and urine following oral doses of either finafloxacin at 800 mg once a day (q...
May 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28187754/extended-spectrum-beta-lactamase-producing-organisms-causing-urinary-tract-infections-in-sri-lanka-and-their-antibiotic-susceptibility-pattern-a-hospital-based-cross-sectional-study
#8
M M P S C Fernando, W A N V Luke, J K N D Miththinda, R D S S Wickramasinghe, B S Sebastiampillai, M P M L Gunathilake, F H D S Silva, R Premaratna
BACKGROUND: Extended Spectrum Beta- Lactamase producing organisms causing urinary tract infections (ESBL-UTI) are increasing in incidence and pose a major burden to health care. While ESBL producing Klebsiella species seem to account for most nosocomial outbreaks, ESBL-producing E. coli have been isolated from both hospitalized and non-hospitalized patients. Although 95-100% ESBL organisms are still considered sensitive to meropenem, rapid emergence of carbapenem resistance has been documented in many countries...
February 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28182124/extended-spectrum-beta-lactamase-and-carbapenemase-producing-enterobacteriaceae-among-ethiopian-children
#9
Melese Hailu Legese, Gebru Mulugeta Weldearegay, Daniel Asrat
BACKGROUND: Infections by extended-spectrum beta-lactamase- (ESBL) and carbapenem-resistant Enterobacteriaceae (CRE) are an emerging problem in children nowadays. Hence, the aim of this study was to determine the prevalence of ESBL- and carbapenemase-producing Enterobacteriaceae among children suspected of septicemia and urinary tract infections (UTIs). METHODS: A cross-sectional study was conducted from January to March 2014. A total of 322 study participants suspected of septicemia and UTIs were recruited...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28167307/fosfomycin-in-vitro-efficacy-against-multidrug-resistant-isolates-beyond-urinary-isolates
#10
Tulin Demir, Tuncay Buyukguclu
OBJECTIVES: Fosfomycin (FOF) is a bactericidal antimicrobial agent active against a range of Gram-negative bacteria, including multidrug-resistant (MDR) and metallo-β-lactamase (MBL)-producing Enterobacteriaceae. However, data are scarce regarding use of the drug beyond urinary tract infections (UTIs). METHODS: In this study, susceptibility rates to FOF among 290 MDR Enterobacteriaceae isolates were analysed by gradient and disk diffusion tests and the results were compared with agar dilution according to the Clinical and Laboratory Standards Institute (CLSI)...
February 3, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28154560/detection-of-sgi1-pgi1-elements-and-resistance-to-extended-spectrum-cephalosporins-in-proteae-of-animal-origin-in-france
#11
Eliette Schultz, Axel Cloeckaert, Benoît Doublet, Jean-Yves Madec, Marisa Haenni
Proteae, and especially Proteus mirabilis, are often the cause of urinary tract infections (UTIs) in humans. They were reported as carriers of extended-spectrum β-lactamase (ESBL) genes, and recently of carbapenemases, mostly carried by the Salmonella genomic island 1 (SGI1) and Proteus genomic island 1 (PGI1). Proteae have also lately become an increasing cause of UTIs in companion animals, but antimicrobial susceptibility data in animals are still scarce. Here, we report the characterization of 468 clinical epidemiologically unrelated Proteae strains from animals collected between 2013 and 2015 in France...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28146187/-factors-associated-with-extended-spectrum-betalactamases-producing-organisms-among-patients-with-urinary-tract-infections-a-prospective-cohort-study
#12
Cristián Avilés, Pablo Betancour, Carmen Luz Velasco, Rodrigo Godoy, Elizabeth Barthel, Felipe Martínez
BACKGROUND: Urinary tract infections (UTIs) caused by extended-spectrum betalactamases (ESBL) are an increasingly common problem. AIM: To develop an association model to allow an early detection of ESBL-producing microorganisms. METHODS: A prospective observational cohort study was undertaken among patients admitted with a diagnosis of culture-proven UTI to the Internal Medicine Ward of the Hospital Naval Almirante Nef between February and November, 2011...
December 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28131557/-profile-of-bacterial-resistance-in-pediatric-urinary-tract-infections-in-2014
#13
A Flammang, R Morello, M Vergnaud, J Brouard, P Eckart
In pediatric units, bacteria-producing extended-spectrum-betalactamase (ESBL) have an increasing prevalence among bacteria causing febrile urinary tract infections (UTIs). The purpose of this study was to evaluate the epidemiology of bacteria resistance patterns observed in UTIs, in order to assess the current antibiotic treatment protocols. This study is based upon a single-center retrospective chart review of the cytobacteriological urine cultures performed in UTIs between 1 January and 31 December 2014, in the medical pediatric unit of the Caen University Hospital...
March 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28122913/epidemiology-and-susceptibility-of-pathogens-from-smart-2011-12-turkey-evaluation-of-hospital-acquired-versus-community-acquired-urinary-tract-infections-and-icu-versus-non-icu-associated-intra-abdominal-infections
#14
Iftihar Koksal, Gurdal Yilmaz, Serhat Unal, Pinar Zarakolu, Volkan Korten, Lutfiye Mulazimoglu, Fehmi Tabak, Birgul Mete, Vildan Avkan Oguz, Zeynep Gulay, Emine Alp, Robert Badal, Sibylle Lob
OBJECTIVES: To describe the epidemiology and susceptibility of pathogens (including ESBL producers) from hospital-acquired (HA) versus community-acquired (CA) urinary tract infections (UTIs) and ICU- versus non-ICU-associated intra-abdominal infections (IAIs) in Turkey as a part of the SMART study. METHODS: For this report, Gram-negative pathogens (363 from UTIs and 458 from IAIs) were collected in 2011 and 2012 at six hospitals in Turkey. HA versus CA UTIs and ICU- versus non-ICU-associated IAIs were compared for the species isolated, percentage of ESBL-positive isolates by species and susceptibility for overall and individual Gram-negative species...
January 25, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28096977/high-rates-of-multidrug-resistance-among-uropathogenic-escherichia-coli-in-children-and-analyses-of-esbl-producers-from-nepal
#15
Narayan Prasad Parajuli, Pooja Maharjan, Hridaya Parajuli, Govardhan Joshi, Deliya Paudel, Sujan Sayami, Puspa Raj Khanal
BACKGROUND: Emergence of Extended-spectrum beta-lactamase producing Escherichia coli causing urinary tract infections (UTI) among pediatric patients is an increasing problem worldwide. However, very little is known about pediatric urinary tract infections and antimicrobial resistance trend from Nepal. This study was conducted to assess the current antibiotic resistance rate and ESBL production among uropathogenic Escherichia coli in pediatric patients of a tertiary care teaching hospital of Nepal...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28054236/antibiotic-resistance-patterns-of-escherichia-coli-urinary-isolates-and-comparison-with-antibiotic-consumption-data-over-10%C3%A2-years-2005-2014
#16
P J Stapleton, D J Lundon, R McWade, N Scanlon, M M Hannan, F O'Kelly, M Lynch
INTRODUCTION: Escherichia coli is a common cause of urinary tract infections (UTI). Reviews of antibiotic resistance of this organism can inform choice of empiric treatment of UTI and other infections and strategies for combating antimicrobial resistance. We reviewed laboratory and hospital pharmacy records to assess trends in non-susceptibility rates and the effect of antimicrobial stewardship interventions. METHODS: A retrospective observational study of isolates of E...
January 4, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28051952/antimicrobial-susceptibility-of-gram-negative-eskape-pathogens-isolated-from-hospitalized-patients-with-intra-abdominal-and-urinary-tract-infections-in-asia-pacific-countries-smart-2013-2015
#17
James A Karlowsky, Daryl J Hoban, Meredith A Hackel, Sibylle H Lob, Daniel F Sahm
Gram-negative ESKAPE pathogens (Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter spp.) are responsible for increases in antimicrobial-resistant infections worldwide. We determined in vitro susceptibilities to eight parenteral antimicrobial agents using Clinical and Laboratory Standards Institute broth microdilution methodology for Gram-negative ESKAPE pathogens isolated from hospitalized patients with intra-abdominal infections (IAIs) (n=3052) and urinary tract infections (UTIs) (n=1088) in 11 Asia-Pacific countries/regions from 2013 to 2015...
January 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28028717/multi-drug-resistant-uropathogenic-escherichia-coli-and-its-treatment-by-chinese-medicine
#18
Shi-Wei Liu, Xiao-Yang Xu, Jie Xu, Jiu-Yun Yuan, Wei-Kang Wu, Ning Zhang, Ze-Liang Chen
OBJECTIVES: To investigate the resistance and virulence profiles of uropathogenic Escherichia coli (UPEC) and its treatment by Chinese medicine (CM) Fuzheng Qingre Lishi Formula (, FQLF). METHODS: UPEC strains were isolated from recurrent urinary tract infections (UTIs) patients. Patient sensitivities to 17 antibiotics were tested by the disk diffusion method. Virulence genes were screened by plolymerase chain reaction. A mouse model was constructed using a multi-drug resistant and virulent UPEC strain and treated with FQLF or the antibiotic imipenem...
December 27, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28011969/comparison-of-quinolone-and-beta-lactam-resistance-among-escherichia-coli-strains-isolated-from-urinary-tract-infections
#19
Zahra Tayebi, Hamid Heidari, Hossein Kazemian, Seyed Mohammad Ghafoori, Shahram Boroumandi, Hamidreza Houri
The growing frequency of antibiotic resistances is now a universal problem. Increasing resistance to new generations of β-lactam and quinolone antibiotics in multidrug-resistant Enterobacteriaceae isolates is considered an emergency health issue worldwide. The aim of this study was to evaluate plasmid-mediated quinolone resistance genes in ESBL-producing Escherichia coli isolated from urinary tract infections (UTIs). In our study ESBL-producing isolates were assessed by screening methods. After determination of antimicrobial susceptibility testing, detection of ESBLs and quinolone resistance genes was performed...
December 1, 2016: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/27986743/treatment-of-febrile-geriatric-patients-with-suspected-urinary-tract-infections-in-a-hospital-with-high-rates-of-esbl-producing-bacteria-a-cohort-study
#20
Zvi Shimoni, Regev Cohen, Ruslan Avdiaev, Paul Froom
PURPOSE: To determine the consequences of treating febrile geriatric patients with a suspected urinary tract infection (UTI) with antibiotics that have high resistance rates due primarily to extended-spectrum β-lactamase (ESBL) producing bacteria. METHODS: In this cohort study, we selected 257 consecutive hospitalised patients aged ≥70 years with a chief symptom of fever, possibly due to a UTI and initially treated with antibiotics with rates in our hospital of urinary culture resistance >20%...
December 16, 2016: BMJ Open
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