Occurrence of virulence factors and antibiotic resistances in Enterococcus faecalis and Enterococcus faecium collected from dairy and human samples in North Italy

Cariolato, Diego; Andrighetto, Christian; Lombardi, Angiolella

doi:10.1016/j.foodcont.2007.08.019

Cited by 98 publications

(99 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…En este trabajo fueron seleccionados los genes que codifi can para un grupo de factores de virulencia que han sido ampliamente estudiados y refrendados científi -camente como factores de virulencia en diversas partes del mundo y que permitirán establecer comparaciones con las cepas estudiadas en nuestro país 1,[16][17][18][19] . Enterococcus faecalis es frecuentemente aislado de ITUs, cuadros septicémicos, infecciones de heridas y múltiples otros sitios anatómicos, destacándose última-mente la frecuencia de aislamientos desde infecciones endodónticas 1,3 .…”

Section: Artículo Originalunclassified

See 1 more Smart Citation

Genes de virulencia y bacteriocinas en cepas de Enterococcus faecalis aisladas desde diferentes muestras clínicas en la Región del Maule, Chile

A²,

et al. 2012

Rev. chil. infectol.

View full text Add to dashboard Cite

Section: Artículo Originalunclassified

“…Los microorganismos en estudio fueron sembrados en placas de agar Columbia (Oxoid, Basingstoke, Inglaterra) suplementado con sangre de cordero desfi brinada al 5%. Después de incubación a 37ºC durante 24 h las placas que presentaban zonas de hemólisis alrededor de las colonias fueron consideradas positivas 17 .…”

Section: Materialses Y Métodosunclassified

Genes de virulencia y bacteriocinas en cepas de Enterococcus faecalis aisladas desde diferentes muestras clínicas en la Región del Maule, Chile

A²,

et al. 2012

Rev. chil. infectol.

View full text Add to dashboard Cite

“…Laktik asit bakterilerinin (LAB) bir grubu olan enterokoklar, pastörizasyon s›cakl›klar›na dirençli olmalar›n›n yan› s›ra, farkl› substrat ile düflük ve yüksek s›cakl›k, ekstrem pH ve tuz konsantrasyonlar› gibi geliflme koflullar›na da kolay adapte olma yetenekleri nedeniyle süt ve et gibi çi¤ materyallerden üretilen hayvansal g›dalardan özellikle fermente sosisler ve peynirlerden s›kl›kla izole edilmektedirler (1)(2)(3)(4). Enterococcus faecalis, Enterococcus faecium ve Enterococcus durans çi¤ süt ve süt ürünlerinde en s›k rastlan›lan enterokok türlerini oluflturmaktad›r .…”

Section: Introductionunclassified

“…Vankomisin, çoklu antibiyotik direnç özelli¤i olan enterokoklar›n tedavisinde baflvurulan son çare olarak nitelendirilir (5,11). Antibiyotik direnç özelli¤inin d›fl›nda hemolizin/sitolizin (cylM, cylB ve cylA), agregasyon maddesi (agg), enterokokal yüzey proteini (esp), jelatinaz (gelE), seks feromonlar› (cpd, cob, ccf ve cad) ve hücre duvar› adhezini (efaA) gibi çeflitli virülens faktör genleri enterokoklarda tan›mlanm›flt›r (1,3,12,13 (3,23,25). Kanl› agar besiyerinde yap›lan hemolitik aktivite testi sonucu MYE58 suflunun hemolitik aktivite göstermedi¤i tespit edilmifltir.…”

Section: Introductionunclassified

Safety Evaluation of Enterocin B Producer Enterococcus Faecalis Mye58 Strain Isolated From Raw Milk

Çağlar¹,

Tuncer²,

Tuncer³

2014

GIDA

View full text Add to dashboard Cite

Özet SAFETY EVALUATION OF ENTEROCIN B PRODUCER ENTEROCOCCUS FAECALIS MYE58 STRAIN ISOLATED FROM RAW MILK AbstractIn this study, we investigated the occurrence of enterocin, virulence factor and vancomycin resistance genes in bacteriocin producer Enterococcus faecalis MYE58 isolated from raw milk. We also tested hemolytic activity, gelatinase production and antibiotic resistance of this strain. It was determined that MYE58 strain inhibited Gram-positive bacteria, such as Listeria monocytogenes, Bacillus cereus and Staphylococcus aureus. The presence of enterocin B structural gene (entB) was detected in MYE58 strain. MYE58 strain did not exhibit haemolysis and gelatinase activity. In MYE58 strain, the presence of gelE and espfs genes were detected, but agg, ace, efaAfs, ccf, cob, cpd, cat, cylM, cylB, cylA, vanA and vanB genes were not detected. MYE58 was found resistant to streptomycin and tetracycline. The results of this study showed that enterocin B producer E. faecalis MYE58 strain used as starter culture could pose a risk to consumer health. However, purified or semi-purified enterocin B produced by MYE58 strain may have a potential to use for food preservation against Listeria monocytogenes, Bacillus cereus and Staphylococcus aureus.

show abstract

“…Due to its antimicrobial resistance and virulence factors, enterococci has been not considered generally recognised as safe (GRAS) bacteria and has been known as emerging pathogen of humans. Enteroccocci plays a potential role in hospital associated infections (Cariolato et al, 2008). Entrococcus species has advanced active gene transfer mechanisms for transmission of antibiotic resistance and virulence factor genes by plasmids (Chajecka-Wierzchowska et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Presence and Virulence Traits of Vancomycin-Resistant Enterococcus in Water Samples

Muş¹

2017

J Food Health Sci

View full text Add to dashboard Cite

Abstract:The aim of this study was to determine the incidence of vancomycin-resistant enterococci (VRE) in tap and artesian well waters and to detect the vancomycin resistance genes and virulence genes of the isolates obtained from the samples. For this purpose, 200 samples (119 tap and 81 artesian well waters) were collected from several water supplies during November 2013 and June 2015 period in Bursa province. Seven isolates were recovered from artesian well waters and confirmed as Enterococcus by PCR method. E-test performed for vancomycin and teicoplanin MIC values indicated that only two isolates had the intermediate-level (8 μg/mL) resistance to vancomycin. No resistance was observed to teicoplanin in any of these isolates by Etest. All of 7 isolates were tested for vancomycin resistance genes (vanA, vanB and vanC) and virulence genes (gelE, agg, esp and ace). The results showed that enterococci isolates had no these genes. The present study suggested that the presence of the intermediate level VRE in artesian well waters and, also the waters from environmental supplies near human and animal niches could be play a role as potential reservoirs for enterococci having several types of resistance to vancomycin. Also, vancomycin resistant strains can be possible the spread in environment and also the transmission to human and animals through contaminated water sources.

show abstract

Occurrence of virulence factors and antibiotic resistances in Enterococcus faecalis and Enterococcus faecium collected from dairy and human samples in North Italy

Cited by 98 publications

References 36 publications

Genes de virulencia y bacteriocinas en cepas de Enterococcus faecalis aisladas desde diferentes muestras clínicas en la Región del Maule, Chile

Genes de virulencia y bacteriocinas en cepas de Enterococcus faecalis aisladas desde diferentes muestras clínicas en la Región del Maule, Chile

Safety Evaluation of Enterocin B Producer Enterococcus Faecalis Mye58 Strain Isolated From Raw Milk

Investigation of the Presence and Virulence Traits of Vancomycin-Resistant Enterococcus in Water Samples

Contact Info

Product

Resources

About