A Real-Time Polymerase Chain Reaction Based Assay for the Detection of Escherichia coli in Patients with Urinary Tract Infection in the Sudan

2009 ◽  
Vol 4 (4) ◽  
pp. 173-177 ◽  
Author(s):  
Humodi A. Saeed ◽  
Zahra K. Yousif ◽  
Mugahid M. El Hassan ◽  
Misk El Yamen A. Atti ◽  
Mansour M. Mansour
Keyword(s):  
Escherichia Coli ◽  
Polymerase Chain Reaction ◽  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Real Time ◽  
Chain Reaction ◽  
Polymerase Chain

Molecular Analysis of Uropathogenic E.coli Isolates from Urinary Tract Infections

2019 ◽  
Vol 19 (3) ◽  
pp. 322-326 ◽  
Author(s):  
Hassan Valadbeigi ◽  
Elham Esmaeeli ◽  
Sobhan Ghafourian ◽  
Abbas Maleki ◽  
Nourkhoda Sadeghifard
Keyword(s):  
Escherichia Coli ◽  
Polymerase Chain Reaction ◽  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Multiplex Polymerase Chain Reaction ◽  
Virulence Genes ◽  
Uropathogenic Escherichia Coli ◽  
Chain Reaction ◽  
Polymerase Chain ◽  
Tract Infections

Introduction: The aim of the current study was to investigate the prevalence of virulence genes in uropathogenic Escherichia coli (UPEC) isolates in Ilam. Materials and Methods: For this purpose, a total of 80 UPEC isolates were collected for patients with UTIs during a 6 months period. The multiplex polymerase chain reaction (multiplex PCR) was used to detect the papEF, fimH, iucD, hlyA, fyuA, and ompT genes. Results: The prevalence of fimH, papEF, iucD, fyuA, hlyA, hlyA, and ompT genes were 87.5%, 47.5%, 60%, 67.5%, 27.5%, 47.5% and 71.2%, respectively. Among all of the isolates, 27 profiles were obtained. Conclusion: Our findings demonstrated that the most prevalence was found for fimH, and different distribution of virulence genes suggested different ability of pathogenicity.

Detection of the Escherichia coli pathogenic geneeaewith three real-time polymerase chain reaction methods

2007 ◽  
Vol 53 (3) ◽  
pp. 398-403 ◽  
Author(s):  
Joanne  Karen McCrea ◽  
Chenyi Liu ◽  
Lai-King Ng ◽  
Gehua Wang
Keyword(s):  
Escherichia Coli ◽  
Polymerase Chain Reaction ◽  
Detection Limit ◽  
Real Time ◽  
Turnaround Time ◽  
Sybr Green ◽  
Sybr Green I ◽  
Chain Reaction ◽  
Culture Techniques ◽  
Polymerase Chain

Several real-time polymerase chain reaction (PCR) methods are currently available to rapidly detect the presence of a specific DNA sequence. When used for detection of pathogenic organisms, the turnaround time for PCR-based methods is much lower than for traditional culture techniques. This study compared the sensitivity of three real-time PCR methods when detecting the Escherichia coli pathogenic gene eae to determine which method is most effective in identifying very low levels of the organism. The three methods were used to detect the eae gene over a range of DNA concentrations. The differences in sensitivity were statistically significant (p < 0.05), and SYBR Green I PCR was found to have the lowest detection limit of the three; LUX primers had the highest detection limit. Therefore, using a defined DNA concentration for detecting the eae gene, SYBR Green I is the best alternative.

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