keyword
MENU ▼
Read by QxMD icon Read
search

Campylobacter

keyword
https://www.readbyqxmd.com/read/29781670/genetic-characterisation-of-virulence-genes-associated-with-adherence-invasion-and-cytotoxicity-in-campylobacter-spp-isolated-from-commercial-chickens-and-human-clinical-cases
#1
Samantha Reddy, Oliver T Zishiri
Virulence-associated genes have been recognised and detected in Campylobacter species. The majority of them have been proven to be associated with pathogenicity. This study aimed to detect the presence of virulence genes associated with pathogenicity and responsible for invasion, expression of adherence, colonisation and production of the cytolethal distending toxin (cdt) in Campylobacter jejuni and Campylobacter coli. Commercial chicken faecal samples were randomly sampled from chicken farms within the Durban metropolitan area in South Africa...
February 15, 2018: Onderstepoort Journal of Veterinary Research
https://www.readbyqxmd.com/read/29780596/value-of-routine-stool-testing-for-pathogenic-bacteria-in-the-evaluation-of-symptomatic-patients-with-ileal-pouches
#2
Amandeep Singh, Jean Ashburn, Gursimran Kochhar, Rocio Lopez, Tracy L Hull, Bo Shen
Background: In symptomatic patients with an ileal pouch, stool studies are often sent to diagnose enteric pathogens. Aim of this study is to find the value of routine stool studies in the evaluation of symptomatic patients and the clinical implications of such pathogens in patients with ileal pouches. Methods: Consecutive ileal pouch-anal anastomosis (IPAA) patients who had stool tests out of a 2283-case registry from 2002 to 2015 were included in the study. Patients with positive stool cultures were compared with controls (symptomatic without positive stool culture) in a 1:4 ratio...
May 2018: Gastroenterology Report
https://www.readbyqxmd.com/read/29778204/presence-of-helicobacter-and-campylobacter-species-in-faecal-samples-from-zoo-mammals
#3
C De Witte, C Lemmens, B Flahou, P De Laender, T Bouts, F Vercammen, R Ducatelle, A Smet, F Haesebrouck
Helicobacter and Campylobacter species (spp.) colonize the gastrointestinal tract of various domesticated animals. Apart from their pathogenic significance in animals, several species are of zoonotic importance as well. For most non-domesticated animal spp., however, little is known on the presence and importance of these agents. Therefore, we investigated the presence of Helicobacter and Campylobacter spp. in marine and terrestrial zoo mammals. Faecal samples of various marine and terrestrial zoo mammals were collected from 6 different zoos in Belgium...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29777759/plant-nutraceuticals-as-antimicrobial-agents-in-food-preservation-terpenoids-polyphenols-and-thiols
#4
REVIEW
Ignacio Gutiérrez-Del-Río, Javier Fernández, Felipe Lombó
Synthetic food additives generate a negative perception in consumers. Therefore, food manufacturers search for safer natural alternatives as those involving phytochemicals and plant essential oils. These bioactives have antimicrobial activities widely proved in in vitro tests. Foodborne diseases cause thousands of deaths and millions of infections every year, mainly due to pathogenic bacteria as Salmonella spp., Campylobacter spp., Escherichia coli, Bacillus cereus, Listeria monocytogenes or Staphylococcus aureus...
May 16, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29776416/rapid-urease-test-rut-for-evaluation-of-urease-activity-in-oral-bacteria-in-vitro-and-in-supragingival-dental-plaque-ex-vivo
#5
Gunnar Dahlén, Haidar Hassan, Susanne Blomqvist, Anette Carlén
BACKGROUND: Urease is an enzyme produced by plaque bacteria hydrolysing urea from saliva and gingival exudate into ammonia in order to regulate the pH in the dental biofilm. The aim of this study was to assess the urease activity among oral bacterial species by using the rapid urease test (RUT) in a micro-plate format and to examine whether this test could be used for measuring the urease activity in site-specific supragingival dental plaque samples ex vivo. METHODS: The RUT test is based on 2% urea in peptone broth solution and with phenol red at pH 6...
May 18, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29774851/veal-liver-as-food-vehicle-for-human-campylobacter-infections
#6
Colette Gaulin, Danielle Ramsay, Réjean Dion, Marc Simard, Céline Gariépy, Éric Levac, Karon Hammond-Collins, Maude Michaud-Dumont, Mélanie Gignac, Marc Fiset
A matched case-control study in Quebec, Canada, evaluated consumption of veal liver as a risk factor for campylobacteriosis. Campylobacter was identified in 28 of 97 veal livers collected concurrently from slaughterhouses and retailers. Veal liver was associated with human Campylobacter infection, particularly when consumed undercooked.
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29774830/frequent-implication-of-multistress-tolerant-campylobacter-jejuni-in-human-infections
#7
Euna Oh, Linda Chui, Junghee Bae, Vincent Li, Angela Ma, Steven K Mutschall, Eduardo N Taboada, Lynn M McMullen, Byeonghwa Jeon
Campylobacter jejuni, a major cause of bacterial foodborne illnesses, is considered highly susceptible to environmental stresses. In this study, we extensively investigated the stress tolerance of 121 clinical strains of C. jejuni against 5 stress conditions (aerobic stress, disinfectant exposure, freeze-thaw, heat treatment, and osmotic stress) that this pathogenic bacterium might encounter during foodborne transmission to humans. In contrast to our current perception about high stress sensitivity of C. jejuni, a number of clinical strains of C...
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29770558/pharmacokinetic-and-antimicrobial-activity-of-a-new-carvacrol-based-product-against-a-human-pathogen-campylobacter-jejuni
#8
Marion Allaoua, Pierre Etienne, Virginie Noirot, Jean-Luc Carayon, Nathan Téné, Elsa Bonnafé, Michel Treilhou
AIM: In vitro and in vivo studies were conducted to test a new carvacrol-based product designed to delay the carvacrol release so that it could reach the caeca of broiler chickens in order to control Campylobacter jejuni. METHODS AND RESULTS: Antimicrobial activity of carvacrol, a constituent of oregano and thyme essential oil, has been demonstrated against C. jejuni in vitro, and this compound was found beneficial for broiler growth. Here, we tested a new liquid formulation that did not change the antibacterial efficacy of carvacrol against C...
May 16, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29770061/canadian-public-health-laboratory-network-position-statement-non-culture-based-diagnostics-for-gastroenteritis-and-implications-for-public-health-investigations
#9
B Berenger, L Chui, A R Reimer, V Allen, D Alexander, M-C Domingo, D Haldane, L Hoang, P Levett, A MacKeen, D Marcino, C Sheitoyan-Pesant, G Zahariadis
As clinical laboratories transition to using culture-independent detection test (CIDT) panels for cases of acute gastroenteritis, culture of clinical specimens is becoming less common. The reduction in bacterial cultures available for public health activities is expected to hinder surveillance and outbreak response by public health laboratories at the local, provincial, national and international levels. These recommendations are intended to serve as guidelines for the implementation of CIDT panels in frontline laboratories in Canada...
December 7, 2017: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29769739/membrane-association-of-monotopic-phosphoglycosyl-transferase-underpins-function
#10
Leah C Ray, Debasis Das, Sonya Entova, Vinita Lukose, Andrew J Lynch, Barbara Imperiali, Karen N Allen
Polyprenol phosphate phosphoglycosyl transferases (PGTs) catalyze the first membrane-committed step in assembly of essential glycoconjugates. Currently there is no structure-function information to describe how monotopic PGTs coordinate the reaction between membrane-embedded and soluble substrates. We describe the structure and mode of membrane association of PglC, a PGT from Campylobacter concisus. The structure reveals a unique architecture, provides mechanistic insight and identifies ligand-binding determinants for PglC and the monotopic PGT superfamily...
May 16, 2018: Nature Chemical Biology
https://www.readbyqxmd.com/read/29767678/identification-of-etiology-specific-diarrhea-associated-with-linear-growth-faltering-in-bangladeshi-infants
#11
Amanda E Schnee, Rashidul Haque, Mami Taniuchi, Jashim Uddin, Masud Alam, Jie Liu, Elizabeth T Rogawski, Beth Kirkpatrick, Eric R Houpt, William A Petri, James A Platts-Mills
Childhood diarrhea in low-resource settings has been variably linked to linear growth shortfalls. However, the association between etiology-specific diarrhea and growth has not been comprehensively evaluated. We tested diarrheal stools collected from the Performance of Rotavirus and Oral Polio Vaccines in Developing Countries study from 2011-2013 in Dhaka, Bangladesh by quantitative polymerase chain reaction for a broad range of enteropathogens to characterize diarrhea etiology and examine the association between etiology-specific diarrhea and linear growth and systemic inflammation...
May 15, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29764197/re-thinking-the-chicken-campylobacter-jejuni-interaction-a-review
#12
Wageha A Awad, Claudia Hess, Michael Hess
Chickens are recognized as an imperative source of thermophilic Campylobacter spp., carrying this microorganism in high numbers in their intestinal tract. For long time, C. jejuni has been considered as a commensal microorganism which colonizes its primary host rather than infecting it, in the absence of any obvious clinical signs. However, recent studies question this and argue for a deeper understanding of the host-bacteria interaction. Following oral uptake it was demonstrated that C. jejuni interacts intimately with the gut epithelium and influences cellular functions of the host, with consequences on nutrient absorption...
May 15, 2018: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/29762789/an-optimist-s-view-on-limiting-necrotic-enteritis-and-maintaining-broiler-gut-health-and-performance-in-today-s-marketing-food-safety-and-regulatory-climate
#13
Charles L Hofacre, John A Smith, Greg F Mathis
The future poultry nutritionist, veterinarian, and husbandryman will have many new regulatory requirements and consumer preferences to navigate in addition to their normal responsibility of raising birds in a cost-efficient and wholesome manner. New challenges include changes to antibiotic use, increased food safety regulations, and more concern over how birds are raised and how to dispose of poultry house waste. All of these new programs and new regulations will alter how we have been raising birds for the last 60 years since the inception of the integrated poultry industry...
June 1, 2018: Poultry Science
https://www.readbyqxmd.com/read/29762774/occurrence-and-antimicrobial-susceptibility-of-campylobacter-spp-on-fresh-and-refrigerated-chicken-meat-products-in-central-italy
#14
P Casagrande Proietti, S Pergola, S Bellucci, L Menchetti, D Miraglia, M P Franciosini
This study investigated the presence and the level of Campylobacter spp. contamination in 41 thigh samples (with skin) and 37 skinless breast samples collected at the end of slaughter (T1) and after 10 day period at refrigeration temperature (4°C) (T2), corresponding to their commercial shelf life. The isolates were phenotypically classified as Campylobacter spp. and successively identified by conventional multiplex PCR. The antimicrobial susceptibility of the isolates from fresh thigh and breast samples was also determined via the microdilution method (MIC) in Eucamp microtitre plates with known scalar concentrations of: gentamicin (GEN), streptomycin (ST), ciprofloxacin (CIP), tetracycline (TET), erythromycin (ERY), and nalidixic acid (NA)...
May 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29761597/the-mycobacterium-tuberculosis-complex-has-a-pathway-for-the-biosynthesis-of-4-formamido-4-6-dideoxy-d-glucose
#15
Haley A Brown, Evgeny Vinogradov, Michel Gilbert, Hazel M Holden
Recent studies have demonstrated that the O-antigens of some pathogenic bacteria such as Brucella abortus, Francisella tularensis, and Campylobacter jejuni contain quite unusual N-formylated sugars (3-formamido-3,6-dideoxy-d-glucose or 4-formamido-4,6-dideoxy-d-glucose). Typically, four enzymes are required for the formation of such sugars: a thymidylyltransferase, a 4,6-dehydratase, a pyridoxal 5'-phosphate or PLP-dependent aminotransferase, and an N-formyltransferase. To date, there have been no published reports of N-formylated sugars associated with Mycobacterium tuberculosis...
May 15, 2018: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/29761123/zika-virus-and-guillain-barr%C3%A3-syndrome-in-bangladesh
#16
Corine H GeurtsvanKessel, Zhahirul Islam, Md Badrul Islam, Sandra Kamga, Nowshin Papri, David A M C van de Vijver, Chantal Reusken, Ramona Mogling, Astrid P Heikema, Israt Jahan, Florence K Pradel, Rebecca L Pavlicek, Quazi D Mohammad, Marion P G Koopmans, Bart C Jacobs, Hubert P Endtz
Objective: Previous studies have associated Guillain-Barré syndrome (GBS) with Zika virus (ZIKV) outbreaks in South America and Oceania. In Asia, ZIKV is known to circulate widely, but the association with Guillain-Barré syndrome is unclear. We investigated whether endemic ZIKV infection is associated with the development of GBS. Methods: A prospective study was conducted from 2011 to 2015 in Bangladesh. A total of 418 patients and 418 healthy family controls were included in the study...
May 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29759200/rapid-colorimetric-lactoferrin-based-sandwich-immunoassay-on-cotton-swabs-for-the-detection-of-foodborne-pathogenic-bacteria
#17
Saleh Alamer, Shimaa Eissa, Raja Chinnappan, Paul Herron, Mohammed Zourob
Cotton swab is the conventional swabbing tool that is usually applied for collecting pathogens from contaminated surfaces, followed by cells lysis and DNA extraction before subjecting to genetic analysis. However, such an approach is time consuming as it involves several steps and requires highly trained personnel to perform the experiment. In this study, we developed a new cotton swab-based detection system that involved integrating bacterial collection, preconcentration and detection on Q-tips. The platform is based on a sandwich assay that can detect different pathogens visually by color changes...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29758485/isolation-characterization-and-strain-selection-of-a-paenibacillus-species-for-use-as-a-probiotic-to-aid-in-ruminal-methane-mitigation-nitrate-nitrite-detoxification-and-food-safety
#18
Elizabeth A Latham, William E Pinchak, Julian Trachsel, Heather K Allen, Todd R Callaway, David J Nisbet, Robin C Anderson
The effects of dietary nitrate and Paenibacillus 79R4 (79R4), a denitrifying bacterium, when co-administered as a probiotic, on methane emissions, nitrate and nitrite-metabolizing capacity and fermentation characteristics were studied in vitro. Mixed populations of rumen microbes inoculated with 79R4 metabolized all levels of nitrite studied after 24 h in vitro incubation. Results from in vitro simulations resulted in up to 2 log10 colony forming unit reductions in E. coli O157:H7 and Campylobacter jejuni when these were co-cultured with 79R4...
April 30, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29758058/structural-studies-and-molecular-dynamics-simulations-suggest-a-processive-mechanism-of-exolytic-lytic-transglycosylase-from-campylobacter-jejuni
#19
Jagamya Vijayaraghavan, Vijay Kumar, Nikhil P Krishnan, Ross T Kaufhold, Ximin Zeng, Jun Lin, Focco van den Akker
The bacterial soluble lytic transglycosylase (LT) breaks down the peptidoglycan (PG) layer during processes such as cell division. We present here crystal structures of the soluble LT Cj0843 from Campylobacter jejuni with and without bulgecin A inhibitor in the active site. Cj0843 has a doughnut shape similar but not identical to that of E. coli SLT70. The C-terminal catalytic domain is preceded by an L-domain, a large helical U-domain, a flexible linker, and a small N-terminal NU-domain. The flexible linker allows the NU-domain to reach over and complete the circular shape, using residues conserved in the Epsilonproteobacteria LT family...
2018: PloS One
https://www.readbyqxmd.com/read/29757448/quantitative-prevalence-and-characterization-of-campylobacter-from-chicken-and-duck-carcasses-from-poultry-slaughterhouses-in-south-korea
#20
Jung-Whan Chon, Soo-Kyung Lee, Yohan Yoon, Ki-Sun Yoon, Hyo-Sun Kwak, In-Sun Joo, Kun-Ho Seo
The objective of this study was to assess the quantitative prevalence, antibiotic resistance, and molecular subtyping pattern of Campylobacter isolates from chicken and duck products from poultry slaughterhouses in South Korea. A total of 240 chicken (n = 120) and duck (n = 120) carcass samples collected from 12 poultry slaughterhouses between June 2014 and February 2015 in 12 South Korean cities was tested, and 131 samples were positive for Campylobacter. Duck samples showed a higher prevalence (P < 0.05; 93 out of 120) compared to chicken samples (38 out of 120), whereas Campylobacter cell populations from positives were lower (P < 0...
May 10, 2018: Poultry Science
keyword
keyword
8706
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"