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Saeid Bouzari 3 Articles
Characterization of Antimicrobial Susceptibility, Extended-Spectrum β-Lactamase Genes and Phylogenetic Groups of Enteropathogenic Escherichia coli Isolated from Patients with Diarrhea
Erfaneh Jafari, Saeid Mostaan, Saeid Bouzari
Osong Public Health Res Perspect. 2020;11(5):327-333.   Published online October 22, 2020
DOI: https://doi.org/10.24171/j.phrp.2020.11.5.09
  • 5,291 View
  • 85 Download
  • 4 Citations
AbstractAbstract PDF
Objectives

Infectious diarrhea is one of the most common causes of pediatric death worldwide and enteropathogenic Escherichia coli (EPEC) is one of the main causes. There are 2 subgroups of EPEC, typical and atypical, based on the presence or absence of bundle forming pili (bfp), of which atypical EPEC is considered less virulent, but not less pathogenic. Antimicrobial resistance towards atypical EPEC among children is growing and is considered a major problem. In this study the pattern of antibiotic resistance in clinical isolates was determined.

Methods

Using 130 isolates, antibiotic resistance patterns and phenotypes were assessed, and genotypic profiles of extended spectrum β-lactamase (ESBL) production using disc diffusion and PCR was carried out. Phylogenetic groups were analyzed using quadruplex PCR.

Results

There were 65 E. coli isolates identified as atypical EPEC by PCR, among which the highest antibiotic resistance was towards ampicillin, followed by trimethoprim-sulfamethoxazole, and tetracycline. Multidrug resistance was detected in 44.6% of atypical EPEC isolates. Around 33% of isolates were determined to be extended spectrum β-lactamase producers, and in 90% of isolates, genes responsible for ESBL production could be detected. Moreover, the majority of atypical EPEC strains belonged to Group E, followed by Groups B1, B2 and C.

Conclusion

High rates of multidrug resistance and ESBL production among atypical EPEC isolates warrant periodical surveillance studies to select effective antibiotic treatment for patients. It is considered a critical step to manage antibiotic resistance by avoiding unnecessary prescriptions for antibiotics.

Citations

Citations to this article as recorded by  
  • Virulence and phylogenetic analysis of enteric pathogenic Escherichia coli isolated from children with diarrhoea in South Africa
    Ntando W. Alfinete, John Y. Bolukaoto, Lee Heine, Natasha Potgieter, Tobias G. Barnard
    International Journal of Infectious Diseases.2022; 114: 226.     CrossRef
  • Prevalence of extended-spectrum β-lactamases, AmpC, and carbapenemases in Proteus mirabilis clinical isolates
    Mona Shaaban, Soha Lotfy Elshaer, Ola A. Abd El-Rahman
    BMC Microbiology.2022;[Epub]     CrossRef
  • Enteropathogenic Escherichia coli—A Summary of the Literature
    Anca Delia Mare, Cristina Nicoleta Ciurea, Adrian Man, Bianca Tudor, Valeriu Moldovan, Luminița Decean, Felicia Toma
    Gastroenterology Insights.2021; 12(1): 28.     CrossRef
  • Prevalence of Antibiotic-Resistant Escherichia coli Isolated from Swine Faeces and Lagoons in Bulgaria
    Lyudmila Dimitrova, Mila Kaleva, Maya M. Zaharieva, Christina Stoykova, Iva Tsvetkova, Maya Angelovska, Yana Ilieva, Vesselin Kussovski, Sevda Naydenska, Hristo Najdenski
    Antibiotics.2021; 10(8): 940.     CrossRef
Relationships between Virulence Factors and Antimicrobial Resistance among Escherichia coli Isolated from Urinary Tract Infections and Commensal Isolates in Tehran, Iran
Mohammad Reza Asadi Karam, Mehri Habibi, Saeid Bouzari
Osong Public Health Res Perspect. 2018;9(5):217-224.   Published online October 31, 2018
DOI: https://doi.org/10.24171/j.phrp.2018.9.5.02
  • 4,265 View
  • 104 Download
  • 18 Citations
AbstractAbstract PDF
Objectives

Uropathogenic Escherichia coli (UPEC) are the major cause of urinary tract infections (UTIs). Here, we determined whether sensitivity to antibiotics was related to the prevalence of iron scavenging genes, or to biofilm and hemolysis formation.

Methods

A total of 110 UPEC and 30 E coli isolates were collected from the urine of UTI patients and feces of healthy individuals without UTI, respectively. The presence of iron receptor genes and phenotypic properties were evaluated by polymerase chain reaction and phenotypic methods, respectively. Susceptibility to routine antibiotics was evaluated using the disc diffusion method.

Results

The prevalence of iron scavenging genes ranged from 21.8% (ireA) to 84.5% (chuA) in the UPEC. Resistance to ceftazidime and cefotaxime was significantly correlated with the presence of fyuA and iutA iron genes. Biofilm production was significantly associated with the prevalence of fyuA and hma iron genes. A higher degree of antibiotic resistance was exhibited by isolates that produced biofilms than by their non-biofilm producing counterparts.

Conclusion

Our study clearly indicates that biofilm production is associated with antibiotic resistance, and that iron receptors and hemolysin production also contribute to reduced antibiotic sensitivity. These results further our understanding of the role that these virulence factors play during UPEC pathogenesis, which in turn may be valuable for the development of novel treatment strategies against UTIs.

Citations

Citations to this article as recorded by  
  • Characterization of virulence determinants and phylogenetic background of multiple and extensively drug resistant Escherichia coli isolated from different clinical sources in Egypt
    Rana El-baz, Heba Shehta Said, Eman Salama Abdelmegeed, Rasha Barwa
    Applied Microbiology and Biotechnology.2022; 106(3): 1279.     CrossRef
  • A global systematic review and meta-analysis on correlation between biofilm producers and non-biofilm producers with antibiotic resistance in Uropathogenic Escherichia coli
    Mitra Garousi, Sina Monazami Tabar, Hosein Mirazi, Parnia Asgari, Paniz Sabeghi, Astireh Salehi, Azad Khaledi, Mohammad Ghenaat Pisheh Sanani, Hossein Karballaei Mirzahosseini
    Microbial Pathogenesis.2022; 164: 105412.     CrossRef
  • Virulence factors, antimicrobial resistance and the relationship between these characteristics in uropathogenic Escherichia coli
    Farzaneh Firoozeh, Mohammad Zibaei, Farzad Badmasti, Azad Khaledi
    Gene Reports.2022; 27: 101622.     CrossRef
  • Association between Virulence Factors and Antimicrobial Resistance of Klebsiella pneumoniae Clinical Isolates from North Kerala
    Ramya Kumaran, R.V. Geetha, Sabitha Baby
    Journal of Pure and Applied Microbiology.2022; 16(2): 867.     CrossRef
  • Characterization of virulence factors and antibiotic resistance pattern of uropathogenic Escherichia coli strains in a tertiary care center
    Naveen Kumar M, Sevitha Bhat, Archana Bhat K, Vishwas Saralaya, Shalini Shenoy Mulki
    F1000Research.2022; 11: 1163.     CrossRef
  • Antibiotic Resistance, Biofilm Formation and Sub-Inhibitory Hydrogen Peroxide Stimulation in Uropathogenic Escherichia coli
    Prabin Dawadi, Santosh Khanal, Tista Prasai Joshi, Sudeep KC, Reshma Tuladhar, Bijaya Laxmi Maharjan, Anjani Darai, Dev Raj Joshi
    Microbiology Insights.2022; 15: 117863612211352.     CrossRef
  • Insects, Rodents, and Pets as Reservoirs, Vectors, and Sentinels of Antimicrobial Resistance
    Willis Gwenzi, Nhamo Chaukura, Norah Muisa-Zikali, Charles Teta, Tendai Musvuugwa, Piotr Rzymski, Akebe Luther King Abia
    Antibiotics.2021; 10(1): 68.     CrossRef
  • Virulence genes and phylogenetic groups of uropathogenic Escherichia coli isolates from patients with urinary tract infection and uninfected control subjects: a case-control study
    Seyedeh Elham Rezatofighi, Mahsa Mirzarazi, Mansour Salehi
    BMC Infectious Diseases.2021;[Epub]     CrossRef
  • Virulence characterization and clonal analysis of uropathogenic Escherichia coli metallo-beta-lactamase-producing isolates
    Fatemeh Zangane Matin, Seyedeh Elham Rezatofighi, Mohammad Roayaei Ardakani, Mohammad Reza Akhoond, Fahimeh Mahmoodi
    Annals of Clinical Microbiology and Antimicrobials.2021;[Epub]     CrossRef
  • Antimicrobial Susceptibility and Detection of Virulence-Associated Genes in Escherichia coli Strains Isolated from Commercial Broilers
    Tímea Kocúreková, Lívia Karahutová, Dobroslava Bujňáková
    Antibiotics.2021; 10(11): 1303.     CrossRef
  • Evaluation of Biofilm Formation and Virulence Genes and Association with Antibiotic Resistance Patterns of Uropathogenic Escherichia coli Strains in Southwestern Iran
    Mostafa Boroumand, Asghar Sharifi, Mohammad Amin Ghatei, Mohsen Sadrinasab
    Jundishapur Journal of Microbiology.2021;[Epub]     CrossRef
  • Differences of virulence factors, and antimicrobial susceptibility according to phylogenetic group in uropathogenic Escherichia coli strains isolated from Korean patients
    Miri Hyun, Ji Yeon Lee, Hyun ah Kim
    Annals of Clinical Microbiology and Antimicrobials.2021;[Epub]     CrossRef
  • Changes in Bacterial Spectrum and Resistance Patterns Over Time in the Urine of Patients with Neurogenic Lower Urinary Tract Dysfunction Due to Spinal Cord Injury
    Jürgen Pannek, Carmen Kurmann, Jörg Krebs, Valentin Habermacher, Jens Wöllner
    Urologia Internationalis.2021; 105(5-6): 483.     CrossRef
  • A systematic review and meta-analysis of antibiotic resistance patterns, and the correlation between biofilm formation with virulence factors in uropathogenic E. coli isolated from urinary tract infections
    Fei Zhao, Huanxin Yang, Dezhong Bi, Azad Khaledi, Mingqi Qiao
    Microbial Pathogenesis.2020; 144: 104196.     CrossRef
  • A survey for phylogenetic relationship; presence of virulence genes and antibiotic resistance patterns of avian pathogenic and uropathogenic Escherichia coli isolated from poultry and humans in Yazd, Iran
    Mansoureh Bakhshi, Hengameh Zandi, Mehdi Fatahi Bafghi, Akram Astani, Vahid Reza Ranjbar, Mahmood Vakili
    Gene Reports.2020; 20: 100725.     CrossRef
  • Biofilm formation, antimicrobial susceptibility and virulence genes of Uropathogenic Escherichia coli isolated from clinical isolates in Uganda
    Paul Katongole, Fatuma Nalubega, Najjuka Christine Florence, Benon Asiimwe, Irene Andia
    BMC Infectious Diseases.2020;[Epub]     CrossRef
  • Relationship between Virulence and Resistance among Gram-Negative Bacteria
    Virginio Cepas, Sara M. Soto
    Antibiotics.2020; 9(10): 719.     CrossRef
  • Virulence factors of uropathogenic Escherichia coli (UPEC) and correlation with antimicrobial resistance
    Chhaya Shah, Ratna Baral, Bijay Bartaula, Lok Bahadur Shrestha
    BMC Microbiology.2019;[Epub]     CrossRef
Phenotypic Assays to Determine Virulence Factors of Uropathogenic Escherichia coli (UPEC) Isolates and their Correlation with Antibiotic Resistance Pattern
Mohsen Tabasi, Mohammad Reza Asadi Karam, Mehri Habibi, Mir Saeed Yekaninejad, Saeid Bouzari
Osong Public Health Res Perspect. 2015;6(4):261-268.   Published online August 31, 2015
DOI: https://doi.org/10.1016/j.phrp.2015.08.002
  • 2,268 View
  • 18 Download
  • 39 Citations
AbstractAbstract PDF
Objectives
Urinary tract infection caused by uropathogenic Escherichia coli (UPEC) strains is one of the most important infections in the world. UPEC encode widespread virulence factors closely related with pathogenesis of the bacteria. The purpose of this study was to evaluate the presence of different phenotypic virulence markers in UPEC isolates and determine their correlation with antibiotic resistance pattern.
Methods
UPEC isolates from patients with different clinical symptoms of UTI were collected and screened for biofilm and hemolysin production, mannose resistant, and mannose sensitive hemagglutination (MRHA and MSHA, respectively). In addition, antimicrobial resistance pattern and ESBL-producing isolates were recorded.
Results
Of the 156 UPEC isolates, biofilm and hemolysin formation was seen in 133 (85.3%) and 53 (34%) isolates, respectively. Moreover, 98 (62.8%) and 58 (37.2%) isolates showed the presence of Types 1 fimbriae (MSHA) and P fimbriae (MRHA), respectively. Our results also showed a relationship between biofilm formation in UPEC isolated from acute cystitis patients and recurrent UTI cases. Occurrence of UTI was dramatically correlated with the patients' profiles. We observed that the difference in antimicrobial susceptibilities of the biofilm and nonbiofilm former isolates was statistically significant. The UPEC isolates showed the highest resistance to ampicillin, tetracycline, amoxicillin, and cotrimoxazole. Moreover, 26.9% of isolates were ESBL producers.
Conclusion
This study indicated that there is a relationship between the phenotypic virulence traits of the UPEC isolates, patients' profiles, and antibiotic resistance. Detection of the phenotypic virulence factors could help to improve understanding of pathogenesis of UPEC isolates and better medical intervention.

Citations

Citations to this article as recorded by  
  • Detection of Adhesion Encoding Genes, Antibacterial Susceptibility Test and Biofilm Formation of Uropathogenic Escherichia coli Isolated from Urinary Tract Infections in Children
    Rezvan Goodarzi, Rasoul Yousefimashouf, Iraj Sedighi, Abbas Moradi, Fatemeh Nouri, Mohammad Taheri
    Journal of Advances in Medical and Biomedical Rese.2022; 30(1): 1.     CrossRef
  • A global systematic review and meta-analysis on correlation between biofilm producers and non-biofilm producers with antibiotic resistance in Uropathogenic Escherichia coli
    Mitra Garousi, Sina Monazami Tabar, Hosein Mirazi, Parnia Asgari, Paniz Sabeghi, Astireh Salehi, Azad Khaledi, Mohammad Ghenaat Pisheh Sanani, Hossein Karballaei Mirzahosseini
    Microbial Pathogenesis.2022; 164: 105412.     CrossRef
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    Journal of Applied Genetics.2022; 63(2): 401.     CrossRef
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    Mehrdad Halaji, Amirhossein Fayyazi, Mehdi Rajabnia, Donya Zare, Abazar Pournajaf, Reza Ranjbar
    Frontiers in Cellular and Infection Microbiology.2022;[Epub]     CrossRef
  • Genotypic assay to determine some virulence factors of Uropathogenic E. coli (UPEC) isolates
    Tsahel H. Al-Dulaimi, Ilham A Bunyan, Thikra A. Banimuslem
    International journal of health sciences.2022; : 1593.     CrossRef
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    Journal of Pure and Applied Microbiology.2022; 16(2): 867.     CrossRef
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    BMC Microbiology.2019;[Epub]     CrossRef
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  • Urinary tract infection: Pathogenicity, antibiotic resistance and development of effective vaccines against Uropathogenic Escherichia coli
    Mohammad Reza Asadi Karam, Mehri Habibi, Saeid Bouzari
    Molecular Immunology.2019; 108: 56.     CrossRef
  • Systematic analysis of research on D-mannose and the prospects for its use in recurrent infections of the urinary tract in women of reproductive age
    O. A. Gromova, I. Yu. Torshin, N. K. Tetruashvili
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    Iranian Red Crescent Medical Journal.2019;[Epub]     CrossRef
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    Raju Shrestha, Santosh Khanal, Pramod Poudel, Karan Khadayat, Sajani Ghaju, Anita Bhandari, Sunil Lekhak, Narayan Dutt Pant, Manisha Sharma, Bishnu P. Marasini
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    Mylsamy Muraleetharan, Thirumoorthy Viswanathan
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PHRP : Osong Public Health and Research Perspectives