scholarly journals Pilot experiment in chickens challenged with Campylobacter jejuni CCM6191 administered enterocin M-producing probiotic strain Enterococcus faecium CCM8558 to check its protective effect

2017 ◽  
Vol 62 (No. 11) ◽  
pp. 491-500 ◽  
Author(s):  
A. Laukova ◽  
M. Pogany Simonova ◽  
I. Kubasova ◽  
S. Gancarcikova ◽  
I. Placha ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Post Infection ◽  
Enterococcus Faecium ◽  
Probiotic Strain ◽  
Ringer Solution ◽  
Culture Collection ◽  
Free Access ◽  
Food Borne ◽  
Enterocin M ◽  
Campylobacter Spp

Campylobacter jejuni is one of the most common food-borne pathogens and chickens are the main source of these bacteria. Enterococcus faecium AL41, enterocin M-producing strain (deponed to the Czech Culture Collection of Microorganisms, Brno, Czech Republic – CCM8558) is our isolate previously applied e.g. in broiler rabbits with beneficial effect. In this study it was used in a 11-day experiment with chickens (1-day-old, breed Cobb 500, n = 40) challenged with C. jejuni. Birds had free access to feed and water; they were randomly divided into four groups per 10 chicks each: control (CG), E. faecium CCM8558 (EG1), CCM8558 + C. jejuni CCM6191 (EG2), CCM6191 (EG3). E. faecium CCM8558 (10<sup>9 </sup>CFU/ml, 200 µl) in Ringer solution was administered daily per os to EG1 and EG2 for 7 days (from day 0–1). EG3 and EG2 were infected individually per os (day 4, CCM6191, 10<sup>8</sup> CFU/ml in Ringer solution, 200 µl). For microbiota evaluation, faecal mixtures (n = 5) were sampled on day 0–1 (1<sup>st</sup> sampling), on day 7 (2<sup>nd</sup> sampling), and on day 11 (3<sup>rd</sup> sampling) (day 7 of CCM8558 application, day 4 post-infection; day 4 of CCM8558 cessation, day 7 post-infection). Five birds from each group were sacrificed. CCM8558 sufficiently colonized chickens. In faeces of EG2 a tendency to reduce Campylobacter spp. (day 7 of application, day 4 of infection) was noted compared to EG2 (day 11, day 4 of cessation, day 7 post-infection; difference 1.21 log cycles), while in EG3 CCM6191 strain was not reduced. Phagocytic activity (PA) values were significantly higher in infected groups compared to CG and EG1. A significant increase in PA was also noted in EG2 and EG3 at the end of experiment compared to CG or EG1. The strain additive did not evoke oxidative stress. Biochemical parameters were influenced to the reference levels.

scholarly journals Biofilm Formation Ability of Arcobacter-Like and Campylobacter Strains under Different Conditions and on Food Processing Materials

2021 ◽  
Vol 9 (10) ◽  
pp. 2017
Author(s):  
David Šilha ◽  
Sabina Sirotková ◽  
Karolína Švarcová ◽  
Leona Hofmeisterová ◽  
Květa Koryčanová ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Food Processing ◽  
Biofilm Formation ◽  
Clinical Samples ◽  
The Czech Republic ◽  
Adhesion Ability ◽  
Abiotic Surfaces ◽  
Food Borne ◽  
Chi Squared ◽  
Campylobacter Spp

Campylobacter jejuni is the most frequent cause of bacterial gastrointestinal food-borne infection worldwide. The transmission of Campylobacter and Arcobacter-like species is often made possible by their ability to adhere to various abiotic surfaces. This study is focused on monitoring the biofilm ability of 69 strains of Campylobacter spp. and lesser described species of the Arcobacteraceae family isolated from food, water, and clinical samples within the Czech Republic. Biofilm formation was monitored and evaluated under an aerobic/microaerophilic atmosphere after cultivation for 24 or 72 h depending on the surface material. An overall higher adhesion ability was observed in arcobacters. A chi-squared test showed no association between the origin of the strains and biofilm activity (p > 0.05). Arcobacter-like species are able to form biofilms under microaerophilic and aerobic conditions; however, they prefer microaerophilic environments. Biofilm formation has already been demonstrated at refrigerator temperatures (5 °C). Arcobacters also showed higher biofilm formation ability at the temperature of 30 °C. This is in contrast to Campylobacter jejuni NP 2896, which showed higher biofilm formation ability at temperatures of 5–30 °C. Overall, the results demonstrated the biofilm formation ability of many strains, which poses a considerable risk to the food industry, medical practice, and human health.

scholarly journals Antimicrobial susceptibility in thermophilic Campylobacter species isolated from pigs and chickens in South Africa

2010 ◽  
Vol 81 (4) ◽  
Author(s):  
A. Jonker ◽  
J.A. Picard
Keyword(s):  
Campylobacter Jejuni ◽  
Antimicrobial Susceptibility ◽  
Intestinal Tract ◽  
Inhibitory Concentration ◽  
Bacterial Disease ◽  
Western Cape ◽  
Oral Antibiotics ◽  
Food Borne ◽  
Thermophilic Campylobacter ◽  
Campylobacter Spp

Campylobacter jejuni is one of the leading causes of sporadic food-borne bacterial disease in humans. In intensive poultry and pig rearing systems the use of oral antibiotics is essential to maintain health. Consequently, there is a high risk for the thermophilic Campylobacter jejuni and C. coli resident in the intestinal tract of food animals to develop resistance to commonly used antibiotics. Contamination of meat or eggs with pathogenic strains of resistant Campylobacter could, therefore, result in a form of campylobacteriosis in humans that is difficult to treat. The aim of this investigation was to determine the antimicrobial susceptibility of thermophilic Campylobacter spp. isolated from pigs and poultry by the broth microdilution minimum inhibitory concentration (MIC) test. A total of 482 samples from the Western Cape and Gauteng provinces was collected and analysed. Thirty-eight Campylobacter isolates were obtained. Analysis of data revealed that C. jejuni strains mainly of poultry origin were more resistant to the fluoroquinolones, macrolides and tetracyclines and the C. coli strains were more resistant to the macrolides and lincosamides. Multiresistance was also detected in 4 Campylobacter strains from the Western Cape. With the exception of tetracyclines, strains from high health Gauteng broiler farms were susceptible to antibiotics used to treat Campylobacter infections.

scholarly journals Immune-modulatory Properties of the Octapeptide NAP in Campylobacter jejuni Infected Mice Suffering from Acute Enterocolitis

2020 ◽  
Vol 8 (6) ◽  
pp. 802 ◽  
Author(s):  
Markus M. Heimesaat ◽  
Soraya Mousavi ◽  
Sigri Kløve ◽  
Claudia Genger ◽  
Dennis Weschka ◽  
...  
Keyword(s):  
Immune Responses ◽  
Campylobacter Jejuni ◽  
Post Infection ◽  
Intestinal Tract ◽  
Clinical Signs ◽  
Global Public Health ◽  
Food Borne ◽  
Human Infections ◽  
First Time ◽  
Post Infectious

Human infections with the food-borne zoonotic pathogen Campylobacter jejuni are progressively rising and constitute serious global public health and socioeconomic burdens. Hence, application of compounds with disease-alleviating properties are required to combat campylobacteriosis and post-infectious sequelae. In our preclinical intervention study applying an acute C. jejuni induced enterocolitis model, we surveyed the anti-pathogenic and immune-modulatory effects of the octapeptide NAP which is well-known for its neuroprotective and anti-inflammatory properties. Therefore, secondary abiotic IL-10−/− mice were perorally infected with C. jejuni and intraperitoneally treated with synthetic NAP from day 2 until day 5 post-infection. NAP-treatment did not affect gastrointestinal C. jejuni colonization but could alleviate clinical signs of infection that was accompanied by less pronounced apoptosis of colonic epithelial cells and enhancement of cell regenerative measures on day 6 post-infection. Moreover, NAP-treatment resulted in less distinct innate and adaptive pro-inflammatory immune responses that were not restricted to the intestinal tract but could also be observed in extra-intestinal and even systemic compartments. NAP-treatment further resulted in less frequent translocation of viable pathogens from the intestinal tract to extra-intestinal including systemic tissue sites. For the first time, we here provide evidence that NAP application constitutes a promising option to combat acute campylobacteriosis.

scholarly journals Lack of Evidence for Vertical Transmission of Campylobacter spp. in Chickens

2006 ◽  
Vol 72 (9) ◽  
pp. 5794-5798 ◽  
Author(s):  
Kenneth A. Callicott ◽  
Vala Fri�riksd�ttir ◽  
Jarle Reiersen ◽  
Ruff Lowman ◽  
Jean-Robert Bisaillon ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Vertical Transmission ◽  
Horizontal Transmission ◽  
Significant Source ◽  
Excellent Opportunity ◽  
Food Borne ◽  
Limited Opportunity ◽  
Campylobacter Spp ◽  
Bacterial Food

ABSTRACT Campylobacter jejuni is a major cause of bacterial food-borne infection in the industrial world. There is evidence that C. jejuni is present in eggs and hatchery fluff, opening the possibility for vertical transmission from hens to progeny. Poultry operations in Iceland provide an excellent opportunity to study this possibility, since breeding flocks are established solely from eggs imported from grandparent flocks in Sweden. This leaves limited opportunity for grandparents and their progeny to share isolates through horizontal transmission. While Campylobacter was not detected in all grandparent flocks, 13 of the 16 egg import lots consisted of eggs gathered from one or more Campylobacter-positive grandparent flocks. No evidence of Campylobacter was found by PCR in any of the 10 relevant quarantine hatchery fluff samples examined, and no Campylobacter was isolated from the parent birds through 8 weeks, while they were still in quarantine rearing facilities. After the birds were moved to less biosecure rearing facilities, Campylobacter was isolated, and 29 alleles were observed among the 224 isolates studied. While three alleles were found in both Sweden and Iceland, in no case was the same allele found both in a particular grandparent flock and in its progeny. We could find no evidence for vertical transmission of Campylobacter to the approximately 60,000 progeny parent breeders that were hatched from eggs coming from Campylobacter-positive grandparent flocks. If vertical transmission is occurring, it is not a significant source for the contamination of chicken flocks with Campylobacter spp.

scholarly journals Immune-Modulatory Effects upon Oral Application of Cumin-Essential-Oil to Mice Suffering from Acute Campylobacteriosis

Pathogens ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 818
Author(s):  
Soraya Mousavi ◽  
Dennis Weschka ◽  
Stefan Bereswill ◽  
Markus Heimesaat
Keyword(s):  
Essential Oil ◽  
Infectious Diseases ◽  
Post Infection ◽  
Apoptotic Cell ◽  
Natural Compounds ◽  
Mesenteric Lymph Nodes ◽  
Beneficial Effects ◽  
Cell Responses ◽  
Food Borne ◽  
Human Campylobacteriosis

Human campylobacteriosis, commonly caused by Campylobacter jejuni, is a food-borne infection with rising prevalence causing significant health and socioeconomic burdens worldwide. Given the threat from emerging antimicrobial resistances, the treatment of infectious diseases with antibiotics-independent natural compounds is utmost appreciated. Since the health-beneficial effects of cumin-essential-oil (EO) have been known for centuries, its potential anti-pathogenic and immune-modulatory effects during acute experimental campylobacteriosis were addressed in the present study. Therefore, C. jejuni-challenged secondary abiotic IL-10-/- mice were treated perorally with either cumin-EO or placebo starting on day 2 post-infection. On day 6 post-infection, cumin-EO treated mice harbored lower ileal pathogen numbers and exhibited a better clinical outcome when compared to placebo controls. Furthermore, cumin-EO treatment alleviated enteropathogen-induced apoptotic cell responses in colonic epithelia. Whereas, on day 6 post-infection, a dampened secretion of pro-inflammatory mediators, including nitric oxide and IFN-γ to basal levels, could be assessed in mesenteric lymph nodes of cumin-EO treated mice, systemic MCP-1 concentrations were elevated in placebo counterparts only. In conclusion, our preclinical intervention study provides first evidence for promising immune-modulatory effects of cumin-EO in the combat of human campylobacteriosis. Future studies should address antimicrobial and immune-modulatory effects of natural compounds as adjunct antibiotics-independent treatment option for infectious diseases.

Prevalence and Antimicrobial Resistance of Campylobacter spp. Isolated from Poultry Carcasses in Poland

2013 ◽  
Vol 76 (8) ◽  
pp. 1451-1455 ◽  
Author(s):  
KINGA WIECZOREK ◽  
IWONA KANIA ◽  
JACEK OSEK
Keyword(s):  
Campylobacter Jejuni ◽  
23S Rrna ◽  
Rrna Gene ◽  
Campylobacter Coli ◽  
Genetic Determinants ◽  
Gyra Gene ◽  
23S Rrna Gene ◽  
Pcr Method ◽  
Almost All ◽  
Campylobacter Spp

The purpose of the present study was to determine the prevalence of Campylobacter in poultry carcasses at slaughter in Poland. For the isolated strains, resistance to selected antibiotics and the associated genetic determinants were identified. A total of 498 Campylobacter isolates were obtained from 802 poultry samples during the 2-year study period. Strains were identified to species with the PCR method; 53.6% of the strains were Campylobacter jejuni and 46.4% were Campylobacter coli. A high percentage of the tested Campylobacter strains were resistant to ciprofloxacin and nalidixic acid (74.1 and 73.5%, respectively) followed by tetracycline (47.4%) and streptomycin (20.5%). Only one C. jejuni and two C. coli isolates were resistant to gentamicin. Seventy-nine (15.9%) of the 498 strains were resistant to three or more classes of antibiotics examined. Higher levels of resistance, irrespective of the antimicrobial agent tested, were found within the C. coli group. Almost all strains resistant to quinolones (99.5%) and to tetracycline (99.6%) carried the Thr-86-to-Ile mutation in the gyrA gene and possessed the tet(O) marker, respectively. All isolates resistant to erythromycin had the A2075G mutation in the 23S rRNA gene. These results reveal that poultry carcasses in Poland are a reservoir of potentially pathogenic and antimicrobial-resistant Campylobacter strains for humans, which may pose a public health risk.

Combined administration of bacteriocin- -producing, probiotic strain Enterococcus faecium CCM7420 with Eleutherococcus senticosus and their effect in rabbits

2013 ◽  
Vol 16 (4) ◽  
pp. 619-627 ◽  
Author(s):  
M. Pogány Simonová ◽  
A. Lauková ◽  
L. Chrastinová ◽  
I. Plachá ◽  
V. Strompfová ◽  
...  
Keyword(s):  
Growth Performance ◽  
Enterococcus Faecium ◽  
Average Daily Gain ◽  
Probiotic Strain ◽  
Cholesterol Concentration ◽  
Control Group ◽  
Feed Conversion ◽  
Eleutherococcus Senticosus ◽  
Commercial Diet ◽  
And Control

Abstract The effect of Enterococcus faecium CCM7420 (EF) - enterocin-producing and probiotic strain of rabbit origin, Eleutherococcus senticosus extract (ES) and their combination (ES+EF) was determined on selected bacteria in faeces and caecum content, leukocytes phagocytosis, blood biochemistry and growth performance. Ninety-six weaned rabbits were divided into 3 experimental (ES, EF, ES+EF) and control group (CG). The rabbits in the groups ES and EF+ES were fed commercial diet enriched with E. senticosus extract (30 g/100 kg feed), rabbits in groups EF and CG were fed untreated diet. The rabbits in the EF and ES+EF groups were administered with an overnight culture of E. faecium CCM7420 strain (500 μl/animal/day into water, 109 CFU/ml). The treatment period lasted 21 days. The microbiological examinations in faecal samples confirmed the presence of E. faecium CCM7420 strain. In groups EF and ES+EF, the reduction of faecal coliforms, Pseudomonas-like sp., Clostridium-like sp. and S. aureus was recorded. Leucocyte phagocytosis significantly increased in all experimental groups (P<0.0001) compared to CG. The lowest GPx values were measured in the ES+EF group. Higher total protein, triglycerides and calcium concentrations were detected in experimental groups compared to CG. The cholesterol concentration decreased in the ES group. The highest average daily gain was recorded in EF group; in ES+EF the better feed conversion ratio and no mortality was recorded. These results indicated that the dietary supplementation with the E. faecium CCM7420 and E. senticosus extract stimulate the leukocytes phagocytosis and reduces the potential pathogens in rabbits digestive tract without oxidative stress and improve the growth performance.

Anti-adhesion of probiotic Enterococcus faecium WEFA23 against five pathogens and the beneficial effect of its S-layer proteins against Listeria monocytogenes

2019 ◽  
Vol 65 (3) ◽  
pp. 175-184
Author(s):  
Yao He ◽  
Xiongpeng Xu ◽  
Fen Zhang ◽  
Di Xu ◽  
Zhengqi Liu ◽  
...  
Keyword(s):  
Listeria Monocytogenes ◽  
Enterococcus Faecium ◽  
Probiotic Strain ◽  
Antagonistic Activity ◽  
Bacterial Surface ◽  
Colony Forming Units ◽  
Infant Feces ◽  
Adhesion Activity ◽  
Displacement Assays ◽  
Different Levels

Enterococcus faecium WEFA23 is a potential probiotic strain isolated from Chinese infant feces. In this study, the antagonistic activity of E. faecium WEFA23 on adhesion to pathogens was investigated. Enterococcus faecium WEFA23 was able to compete, exclude, and displace the adhesion of Escherichia coli O157:H7, Salmonella Typhimurium ATCC 13311, Listeria monocytogenes CMCC54007, Staphylococcus aureus CMCC26003, and Shigella sonnei ATCC 25931 to Caco-2 cells. Among them, L. monocytogenes achieved the strongest inhibition rate in both competition and displacement assays. Those anti-adhesion capacities were related to the bacterial physicochemical properties (hydrophobicity, auto-aggregation, and co-aggregation) of the bacterial surface. For L. monocytogenes, the anti-adhesion capacity was affected by the heat treatment, cell density, and growth phase of E. faecium WEFA23; 108 colony-forming units of viable cells per millilitre at the stationary phase exhibited the strongest anti-adhesion activity. In addition, removal of S-layer proteins of E. faecium WEFA23 by treatment with 5 mol/L LiCl significantly decreased its adhesion capacity, and those S-layer proteins were able to compete, displace, and exclude L. monocytogenes at different levels. Both cells and S-layer proteins of E. faecium WEFA23 significantly reduced the apoptosis of Caco-2 cells induced by L. monocytogenes, which was mediated by caspase-3 activation. This study might be helpful in understanding the anti-adhesion mechanism of probiotics against pathogens.

scholarly journals Biofilm Formation by Campylobacter jejuni Is Increased under Aerobic Conditions

2010 ◽  
Vol 76 (7) ◽  
pp. 2122-2128 ◽  
Author(s):  
Mark Reuter ◽  
Arthur Mallett ◽  
Bruce M. Pearson ◽  
Arnoud H. M. van Vliet
Keyword(s):  
Campylobacter Jejuni ◽  
Food Chain ◽  
Biofilm Formation ◽  
Planktonic Cells ◽  
Aerobic Conditions ◽  
Food Borne ◽  
Passive Release ◽  
Bacterial Gastroenteritis ◽  
Microaerobic Conditions ◽  
Developed World

ABSTRACT The microaerophilic human pathogen Campylobacter jejuni is the leading cause of food-borne bacterial gastroenteritis in the developed world. During transmission through the food chain and the environment, the organism must survive stressful environmental conditions, particularly high oxygen levels. Biofilm formation has been suggested to play a role in the environmental survival of this organism. In this work we show that C. jejuni NCTC 11168 biofilms developed more rapidly under environmental and food-chain-relevant aerobic conditions (20% O2) than under microaerobic conditions (5% O2, 10% CO2), although final levels of biofilms were comparable after 3 days. Staining of biofilms with Congo red gave results similar to those obtained with the commonly used crystal violet staining. The level of biofilm formation by nonmotile aflagellate strains was lower than that observed for the motile flagellated strain but nonetheless increased under aerobic conditions, suggesting the presence of flagellum-dependent and flagellum-independent mechanisms of biofilm formation in C. jejuni. Moreover, preformed biofilms shed high numbers of viable C. jejuni cells into the culture supernatant independently of the oxygen concentration, suggesting a continuous passive release of cells into the medium rather than a condition-specific active mechanism of dispersal. We conclude that under aerobic or stressful conditions, C. jejuni adapts to a biofilm lifestyle, allowing survival under detrimental conditions, and that such a biofilm can function as a reservoir of viable planktonic cells. The increased level of biofilm formation under aerobic conditions is likely to be an adaptation contributing to the zoonotic lifestyle of C. jejuni.

Sign in / Sign up

Export Citation Format

Share Document