Aerobactin uptake system, ColV production, and drug resistance encoded by a plasmid from an urinary tract infection Escherichia coli strain of human origin

1990 ◽  
Vol 36 (4) ◽  
pp. 297-299 ◽  
Author(s):  
Darja Žgur-Bertok ◽  
Evgenija Modrič ◽  
Miklavž Grabnar
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Urinary Tract ◽  
Iron Uptake ◽  
Coli Strain ◽  
Uptake System ◽  
Human Origin ◽  
Coli Plasmid ◽  
Tract Infections ◽  
Key Words Escherichia Coli

A study of Escherichia coli strains isolated from patients suffering from urinary tract infections in Ljubljana, Yugoslavia, revealed a plasmid encoding the aerobactin iron uptake system, ColV production, and drug resistance. The plasmid is conjugative and at least 85 kilobases in length. Key words: Escherichia coli, plasmid, aerobactin, ColV, resistance.

scholarly journals Plasmid Coding for Drug Resistance and Production of Heat-Labile and Heat-Stable Toxins Harbored by an Escherichia coli Strain of Human Origin

1983 ◽  
Vol 39 (2) ◽  
pp. 970-973 ◽  
Author(s):  
M. Lourdes M. Silva ◽  
Isabel C. A. Scaletsky ◽  
M. Henriqueta L. Reis ◽  
M. Heloiza T. Affonso ◽  
Luiz R. Trabulsi
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Coli Strain ◽  
Human Origin ◽  
Heat Stable ◽  
Heat Labile

scholarly journals The Salmochelin Siderophore Receptor IroN Contributes to Invasion of Urothelial Cells by Extraintestinal Pathogenic Escherichia coli In Vitro

2007 ◽  
Vol 75 (6) ◽  
pp. 3183-3187 ◽  
Author(s):  
Friederike Feldmann ◽  
Liisa Johanna Sorsa ◽  
Kirsten Hildinger ◽  
Sören Schubert
Keyword(s):  
Escherichia Coli ◽  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Iron Uptake ◽  
Dual Role ◽  
Urothelial Cells ◽  
Pathogenic Escherichia Coli ◽  
Tract Infections

ABSTRACT Extraintestinal pathogenic Escherichia coli (ExPEC) strains possess several siderophore-dependent iron uptake systems. In this study we demonstrated that the salmochelin siderophore receptor IroN is involved in the invasion of urothelial cells by ExPEC in vitro. Thus, IroN may play a dual role in the establishment of urinary tract infections, displaying an iron uptake receptor as well as an internalization factor.

scholarly journals Prevalence of blaCTX-M, blaSHV, and blaTEM Genes in Escherichia coli Strains Isolated From Urinary Tract Infection Samples of Patients in the Intensive Care Unit in Qom, Iran

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Shima Sadat Lesani ◽  
Mohammad Soleimani ◽  
Pegah Shakib ◽  
Mohammad Reza Zolfaghari
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Urinary Tract Infection ◽  
Intensive Care ◽  
Urinary Tract ◽  
Tract Infection ◽  
Intensive Care Units ◽  
Diffusion Method ◽  
E Coli ◽  
Tract Infections

Background: Escherichia coli is considered as one of the causes of opportunistic infections. Nowadays, due to the increase in drug resistance, the treatment of these infections has become very difficult and they are recognized as the main causes of death in hospitalized patients. Objectives: The aim of this study was to determine the prevalence of blaTEM, blaSHV, and blaCTX-M genes in E. coli strains isolated from the urinary tract infection in patients in Intensive Care Units of three different hospitals in Qom, Iran. Methods: This study was conducted in three months from October to December 2014. A total of 200 E. coli samples were taken from the patients with urinary tract infections in Intensive Care units of Qom hospital. The disc diffusion method was used to determine the susceptibility pattern of antibiotic and phenotypic confirmatory tests for screening of the expanded spectrum beta-lactamase (ESBL) isolates. The presence of blaTEM, blaSHV, and blaCTX-M genes was evaluated by the polymerase chain reaction (PCR) assay. Results: Of 200 samples, ampicillin (96%) and nitrofurantoin (19.5%) showed the highest and lowest drug resistance, respectively. A total of 156 isolates (78%) were identified as ESBLs using the phenotypic method. Moreover, 76 (38%), 90 (45%), and 123 (61.5%) isolates consisted of blaCTX-M, blaSHV, and blaTEM, respectively. Conclusions: Overall, the findings of this study showed that blaTEM was the most common gene with a frequency of 61.5% in ESBL E. coli.

scholarly journals Drug resistance and plasmid profile of uropathogenic Escherichia coli among urinary tract infection patients in Addis Abeba

2018 ◽  
Vol 12 (08) ◽  
pp. 608-615 ◽  
Author(s):  
Belayneh Regasa Dadi ◽  
Tamrat Abebe ◽  
Lixin Zhang ◽  
Adane Mihret ◽  
Workeabeba Abebe ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Plasmid Profile ◽  
Uropathogenic Escherichia Coli ◽  
E Coli ◽  
Plasmid Analysis ◽  
Escherichia Coli Bacteria ◽  
Tract Infections

Introduction: Urinary tract infection is a major cause of morbidity and mortality worldwide. Uropathogenic Escherichia coli bacteria are the most common cause of urinary tract infections. Drug resistant Escherichia coli is results in high levels of treatment failure and can be a significant threat to survival of patients. Methodology: Escherichia coli bacteria were isolated using culture and conventional biochemical tests. Antimicrobial susceptibility testing and plasmid profile were performed using the Kirby Bauer disc diffusion method and plasmid analysis. Data was processed with SPSS version 16.0 and Epi-info version 3.4.1 software. Results: The highest proportion of Escherichia coli isolates was resistant to (86.5%) to ampicillin, followed by ceftazidime (84%), ceftriaxone (80.5%), tetracycline (80%), trimethoprim-sulfamethoxazole (68.5%) and cefotaxime (66%). Escherichia coli isolates were most susceptible to meropenem (100%), imipenem (100%), amikacin (97.5%), nitrofurantoin (95%), ciprofloxacin (85.5%), norfloxacin (85%), chloramphenicol (83.5%), gentamycin (80%) and nalidixic acid (79%). Multidrug resistance (MDR) was observed in most (96.5%) E. coli isolates. Plasmid analysis revealed the presence of plasmid(s) in 165 (82.5%) of the E. coli isolates many of which had a plasmid size of 23 kb. Conclusions: The overall incidence of antibiotic resistance (including MDR) among E. coli in this study was high to commonly used antibiotics, but no drug resistance to meropenem and imipenem was observed. Periodic monitoring of the drug resistance pattern is essential for better management of urinary tract infections, which has direct impact on the outcome of the patient.

scholarly journals Isolation of an SHV-12 β-Lactamase-Producing Escherichia coli Strain from a Dog with Recurrent Urinary Tract Infections

2000 ◽  
Vol 44 (12) ◽  
pp. 3483-3484 ◽  
Author(s):  
Tirushet Teshager ◽  
Yolanda Saénz ◽  
Susana Cardeñosa ◽  
Lucas Domı́nguez ◽  
Miguel A. Moreno ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Coli Strain ◽  
Recurrent Urinary Tract Infections ◽  
Tract Infections

scholarly journals Draft Genome Sequence of Escherichia coli Strain UMD142

2020 ◽  
Vol 9 (45) ◽  
Author(s):  
Tracy H. Hazen ◽  
Husain Poonawala ◽  
Kapil K. Saharia ◽  
Michael S. Donnenberg ◽  
David A. Rasko
Keyword(s):  
Escherichia Coli ◽  
Urinary Tract ◽  
Soft Tissue ◽  
Necrotizing Fasciitis ◽  
Urinary Tract Infections ◽  
Draft Genome ◽  
Coli Strain ◽  
Soft Tissue Infections ◽  
Content Type ◽  
Tract Infections

ABSTRACT Escherichia coli can be a harmless commensal organism or cause a range of diseases in humans, including diarrhea, urinary tract infections, meningitis, sepsis, and skin and soft tissue infections. Here, we describe the genome of an isolate that was associated with necrotizing fasciitis and the decompensation of previously undiagnosed cirrhosis.

scholarly journals Antibiotic susceptibility profile and extended spectrum β-lactamases production by uropathogenic Escherichia coli from tertiary care hospital of rural settings

2018 ◽  
Vol 6 (12) ◽  
pp. 4022
Author(s):  
Mustafa Sofiur Rahman ◽  
Ritu Garg ◽  
Varsha A. Singh ◽  
Dipankar Biswas
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Antibiotic Susceptibility ◽  
Uropathogenic Escherichia Coli ◽  
Diffusion Method ◽  
Care Hospital ◽  
Antibiotic Susceptibility Test ◽  
Tract Infections

Background: Escherichia coli are the most common cause of urinary tract infections in community as well as hospital settings. Emergence of drug resistance in Escherichia coli due to various mechanisms makes the treatment options very limited. This study was undertaken to detect ESBLs in uropathogenic Escherichia coli isolates and to determine their antimicrobial susceptibility pattern in rural setting.Methods: A prospective study was done on 502 E. coli isolates from clinically suspected cases of urinary tract infections (UTI) patients of all age groups. All samples were inoculated on Cysteine Lactose Electrolyte Deficient Agar (CLED). Organisms grown in pure culture were identified by standard biochemical tests. Antibiotic susceptibility test was done by the Kirby Bauer Disc diffusion method on Muller Hinton agar. ESBL detection was done as per CLSI guidelines.Results: Of the 502 isolates of Escherichia coli, nitrofurantoin (82%) was found be most sensitive antimicrobial followed by amikacin (73%), gentamycin (71%) and imipenem (64%). Common empirically used antibiotics like fluroquinolones and Cotrimoxazole drugs showed alarming rate of resistance. 60% isolates were found to be multidrug resistant. ESBL production was detected in 31% isolates. ESBL producing strains were found to be more drug resistant than non ESBL producing strains.Conclusions: So, drug resistance due to production of ESBLs in Escherichia coli is a serious threat for clinicians. Strict infection control measures and early detection of beta lactamase producing isolates are the need of the hour to contain the emergence of this type of resistance.

scholarly journals Culture and PCR based detection of bacteria causing urinary tract infection in urine specimen

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Ghulam Sarwar Pirkani ◽  
Mohammad Arif Awan ◽  
Ferhat Abbas ◽  
Mohammad Din
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Molecular Detection ◽  
Resistance Pattern ◽  
Urine Specimen ◽  
Bacterial Isolates ◽  
Extensive Drug Resistance ◽  
Tract Infections

Objectives: Urinary tract infections are the second most common bacterial infections occurring at all ages and both sexes. The increasing rate of antibiotic resistance is a global concern. The use of routinely used antibiotics is resulting in treatment failure. The objective of this study was to diagnose the urinary tract infections by routine culture sensitivity test and by molecular methods. Methods: This study was conducted in Microbiology laboratory, Bolan Medical Complex Hospital, Quetta, from July 1st to 31st March 2019. Isolates were identified biochemically by API20E & API20NE. Antibiogram was performed using disc diffusion Kirby Bauer technique. The 16S rDNA gene approach was used for molecular identification of bacterial isolates. The presence of the blaNDM-1 gene was identified by polymerase chain reaction (PCR). Results: We isolated 146 bacterial isolates namely Escherichia coli (n=99) 67.80%, Klebsiella pneumoniae (n=33) 22.60%, Pseudomonas aeruginosa (n=11) 7.53% and Proteus mirabilis (n=3) 2.05% from 2032 urine samples. The resistance pattern was dominated by Multi Drug Resistance (MDR). Remarkably, four isolates of Escherichia coli (n=3) and Klebsiella pneumoniae (n=1) were displaying resistance against a range of antibiotics used in the study, including carbapenems but sensitive to tigecycline and polymyxins only, suggesting extensive drug resistance having blaNDM-1 gene. Conclusion: This is the first report on direct molecular detection of bacterial pathogens from urinary tract infected patients in Balochistan. The presence of blaNDM-1 in different bacterial species and their extensive drug resistance pattern poses a significant clinical threat. Molecular detection of bacteria and resistant gene may reduce the diagnostic time of patients. doi: https://doi.org/10.12669/pjms.36.3.1577 How to cite this:Pirkani GS, Awan MA, Abbas F, Din M. Culture and PCR based detection of bacteria causing urinary tract infection in urine specimen. Pak J Med Sci. 2020;36(3):---------. doi: https://doi.org/10.12669/pjms.36.3.1577 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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