ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2014
Molecular detection of virulence factors among food and clinical Enterococcus faecalis strains in South Brazil.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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37 citing papers in PubMed.
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- The gut microbiota of wild birds undergoing rehabilitation as a reservoir of multidrug-resistant enterococci in a metropolitan area in Brazil.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024Article
- Phenotypic and genotypic characterization of Enterococcus faecalis and Enterococcus faecium isolated from fish, vegetables, and humans.Scientific reports · 2024Article
- Antimicrobial resistance patterns, virulence genes, and biofilm formation in enterococci strains collected from different sources.BMC infectious diseases · 2024Article
- First Report of a Wastewater Treatment-Adapted Enterococcus faecalis ST21 Harboring vanA Gene in Brazil.Current microbiology · 2023Article
- In Vivo Effect of a Nisin-Biogel on the Antimicrobial and Virulence Signatures of Canine OralAntibiotics (Basel, Switzerland) · 2023Article
- Biofilm Formation Capacity and Presence of Virulence Determinants amongLife (Basel, Switzerland) · 2023Article
- Prevalence and Virulence Characteristics ofAnimals : an open access journal from MDPI · 2022Article
- A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles.Nanomaterials (Basel, Switzerland) · 2022Review
- Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns.Foods (Basel, Switzerland) · 2021Review
- Review
- Pathogenic potential of Enterococcus faecalis strains isolated from root canals after unsuccessful endodontic treatment.Clinical oral investigations · 2021Article
- Antimicrobial Resistance and Virulence Factor Gene Profiles ofJournal of veterinary research · 2021Article
- Characterization of Lactic Acid Bacteria in Raw Buffalo Milk: a Screening for Novel Probiotic Candidates and Their Transcriptional Response to Acid Stress.Probiotics and antimicrobial proteins · 2021Article
- Genomic Analysis ofFrontiers in microbiology · 2021Article
- Article
- Improved detection of esp, hyl, asa1, gelE, cylA virulence genes among clinical isolates of Enterococci.BMC research notes · 2020Article
- Genetic and Phenotypic Characteristics of a Multi-strain Probiotic for Broilers.Current microbiology · 2020Article
- Dangerous passengers: multidrug-resistant bacteria on hands and mobile phones.Journal of preventive medicine and hygiene · 2019Article
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8 authors.
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Abstract
The present report aimed to perform a molecular epidemiological survey by investigating the presence of virulence factors in E. faecalis isolated from different human clinical (n = 57) and food samples (n = 55) in Porto Alegre, Brazil, collected from 2006 to 2009. In addition, the ability to form biofilm in vitro on polystyrene and the β-haemolytic and gelatinase activities were determined. Clinical strains presented a higher prevalence of aggregation substance (agg), enterococcal surface protein (esp) and cytolysin (cylA) genes when compared with food isolates. The esp gene was found only in clinical strains. On the other hand, the gelatinase (gelE) and adherence factor (ace) genes had similar prevalence among the strains, showing the widespread occurrence of these virulence factors among food and clinical E. faecalis strains in South Brazil. More than three virulence factor genes were detected in 77.2% and 18.2% of clinical and food strains, respectively. Gelatinase and β-haemolysin activities were not associated with the presence of gelE and cylA genes. The ability to produce biofilm was detected in 100% of clinical and 94.6% of food isolates, and clinical strains were more able to form biofilm than the food isolates (Student's t-test, p < 0.01). Results from the statistical analysis showed significant associations between strong biofilm formation and ace (p = 0.015) and gelE (p = 0.007) genes in clinical strains. In conclusion, our data indicate that E. faecalis strains isolated from clinical and food samples possess distinctive patterns of virulence factors, with a larger number of genes that encode virulence factors detected in clinical strains.
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