Campylobacter

Tue, 02/12/2019 - 19:00
Campylobacter jejuni secretes HtrA (high temperature requirement protein A), a serine protease that is involved in virulence. Here, we investigated the interaction of HtrA with the host protein occludin, a tight ...
Wed, 02/06/2019 - 11:00
Poultry are considered a major reservoir and source of human campylobacteriosis, but the roles of environmental reservoirs, including wild birds, have not been assessed in depth. In this study, we isolated and characterized Campylobacter jejuni from western jackdaws (n = 91, 43%), mallard ducks (n = 82, 76%), and pheasants (n = 9, 9%). Most of the western jackdaw and mallard duck C. jejuni...
Thu, 01/31/2019 - 01:13
Sun Ae Kim, Min Ji Jang, Seo Young Kim, Yichao Yang, Hilary O. Pavlidis, Steven C. Ricke
Thu, 01/31/2019 - 01:11
Quorum sensing is a widespread form of cell-to-cell communication, which is based on the production of signaling molecules known as autoinducers (AIs). The first group contains highly species-specific N-acyl homoserine lactones (N-AHLs), generally known as AI-1, which are produced by AHL synthase. The second group, possessing the characteristic structure of a furanone ring, are known as AI-2. The...
Mon, 01/28/2019 - 15:58
Campylobacter jejuni and Campylobacter coli are the most common cause of bacterial gastroenteritis in the world. Ganglioside mimicry by C. jejuni lipooligosaccharide (LOS) is the triggering factor of Guillain-Barré syndrome (GBS), an acute polyneuropathy. Sialyltransferases from the glycosyltransferase (GT) family 42 are essential for the expression of ganglioside mimics in C. jejuni....
Thu, 01/24/2019 - 11:00
Eimeria tenella can cause the disease coccidiosis in chickens. The direct and often detrimental impact of this parasite on chicken health, welfare, and productivity is well recognized; however, less is known about the secondary effects that infection may have on other gut pathogens. Campylobacter jejuni is the leading cause of human bacterial foodborne disease in many countries and has been...
Wed, 01/23/2019 - 01:08
Steven C. Ricke, Kristina M. Feye, W. Evan Chaney, Zhaohao Shi, Hilary Pavlidis, Yichao Yang
Fri, 01/18/2019 - 01:11
Available online 16 January 2019 Author(s): I. Clemente, S. Condón-Abanto, S. Pedrós-Garrido, P. Whyte, J.G. LyngAbstractThis work evaluated the bactericidal effects of a number of essential oils (EOs), organic acids and pulsed electric fields (PEF) against a range of Campylobacter jejuni strains. C. jejuni (1146DF) was found to be the most PEF resistant strain, and was chosen to evaluate the...
Tue, 01/15/2019 - 01:04
Available online 11 January 2019 Author(s): Al Serhat, Gökhan Kürşad Incili, Aytac Akcay, Ahmet KolumanAbstractAlthough rapid detection kits continue to be developed and used, the classical culture method is still accepted as a gold standard. Therefore accelerating the classical culture methods safely is important for the detection of Campylobacter. The aim of this study is to design and compare...
Fri, 01/11/2019 - 17:00
Jiayou Liu, Jodi R. Parrish, Julie Hines, Linda Mansfield, Russell L. Finley Jr. Campylobacter jejuni (C. jejuni) is a foodborne intestinal pathogen and major cause of gastroenteritis worldwide. C. jejuni proteins that are immunogenic have been sought for their potential use in the development of biomarkers, diagnostic assays, or subunit vaccines for humans or livestock. To identify new...
Tue, 01/08/2019 - 00:00
Toxins, Vol. 11, Pages 25: The Impact of Dietary Grape Seed Meal on Healthy and Aflatoxin B1 Afflicted Microbiota of Pigs after Weaning Toxins doi: 10.3390/toxins11010025 Authors: Iulian A. Grosu Gina C. Pistol Ionelia Taranu Daniela E. Marin The study investigated the effect of grape seed (GS) meal, aflatoxin (AFB1), or their combination on the large intestine microbiota of...
Sun, 01/06/2019 - 01:14
Available online 4 January 2019 Author(s): Onay Burak Dogan, Jennifer Clarke, Fabio Mattos, Bing WangAbstractA probabilistic, evidence-based, quantitative microbial risk assessment model was developed to investigate public health risks associated with Campylobacter spp. contamination in broiler chicken supply systems in the United States, covering a farm-to-fork continuum. The objective of this...
Sun, 12/23/2018 - 01:10
Publication date: Available online 21 December 2018Source: Microbial Risk AnalysisAuthor(s): Michael S. Williams, Eric D. Ebel, Neal J. GoldenAbstractThe Food Safety and Inspection Service (FSIS) implemented a 2-class attributes sampling plan for Campylobacter (i.e., a performance standard) for comminuted chicken based on a 1mL direct plating assay. The performance standard specified only one...
Thu, 12/20/2018 - 01:03
Available online 18 December 2018 Author(s): Yunyun Geng, Guanhui Liu, Libing Liu, Qiaoen Deng, Liwei Zhao, Xiao Xia Sun, Jinfeng Wang, Baohua Zhao, Jianchang WangAbstractCampylobacter jejuni (C. jejuni), a foodborne pathogen, is a major contributor to human bacterial gastroenteritis worldwide and detrimental to public health. It is crucial for initiating appropriate outbreak control strategies...
Mon, 12/17/2018 - 11:19
The flagellar lipoprotein FlgP has been identified in several species of bacteria and, its absence provokes different phenotypes. In this work we show that in the α proteobacterium Rhodobacter sphaeroides, a flgP mutant is unable to assemble the hook and the filament. In contrast, the MS ring and the flagellar rod appear to be assembled. In the absence of FlgP a severe defect in the...
Wed, 12/12/2018 - 01:11
Anand B. Karki, Daya Marasini, Clark K. Oakey, Kaitlin Mar, Mohamed K. Fakhr
Thu, 12/06/2018 - 01:11
Publication date: February 2019Source: , Volume 47Author(s): Victoria KorolikCampylobacter jejuni is a ubiquitous gastrointestinal pathogen, transmitted to humans from birds and animals, where C. jejuni is part of normal intestinal flora. In C. jejuni, similar to other motile bacteria, chemotaxis pathway and the array of chemosensors sense and respond to external stimuli with unique precision and...
Wed, 12/05/2018 - 01:08
Publication date: December 2018 , Volume 155Author(s): Shuiping Hou, Xinwei Wu, Yong Zhou, Peng He, Shouyi ChenAbstractWe investigated the efficacy of syringe filters and membrane filters with different pore sizes for recovering Campylobacter. A syringe filter with a 0.45 μm pore size achieved the highest recovery rate (0.29%), while polycarbonate membrane filters with pore sizes of 0.6 μm and 0....
Wed, 12/05/2018 - 01:08
Publication date: 16 February 2019 , Volume 291Author(s): R. de JongeAbstractIn previous work, extreme survival of various bacterial species during cooking was reported when attached to chicken meat. In this paper the effects of an extremely high challenge temperature on survival of Salmonella Typhimurium and Campylobacter jejuni, attached to chicken breast fillets or pork to test for matrix...
Wed, 12/05/2018 - 01:08
Available online 18 June 2018 Author(s): Wilma F. Jacobs-Reitsma, Ida Jongenburger, Enne de Boer, Elisabeth G. Biesta-PetersAbstractThe validation in an interlaboratory study of the International Standards Organization standard method for the enumeration of Campylobacter in foods (ISO 10272-2) was performed after preparation of the revised Standard based on scientifically sound and validated...
Wed, 12/05/2018 - 01:08
Publication date: April 2019 , Volume 78Author(s): Mikaela Sauvala, Sauli Laaksonen, Riikka Laukkanen-Ninios, Katri Jalava, Roger Stephan, Maria Fredriksson-AhomaaAbstractHunting is currently a very popular activity, and interest in game meat is increasing. However, only limited research is available on the bacterial quality and safety of moose (Alces alces) and white-tailed deer (Odocoileus...
Wed, 12/05/2018 - 01:08
Publication date: April 2019 , Volume 78Author(s): Ewa Pacholewicz, Christiane Buhler, Imke F. Wulsten, Britta Kraushaar, Huong Quynh Luu, Azuka N. Iwobi, Ingrid Huber, Kerstin StinglAbstractQuantification of Campylobacter is challenging and one major reason is the fact that bacteria lose cultivability due to cold or oxygen stress during storage at retail. Alternative live/dead discriminatory...
Wed, 12/05/2018 - 01:08
Available online 19 June 2018 Author(s): Elisabeth G. Biesta-Peters, Ida Jongenburger, Enne de Boer, Wilma F. Jacobs-ReitsmaAbstractDuring the last decade Campylobacter has been the most commonly reported gastrointestinal bacterial infection in humans in the European Union. The use of a sensitive detection method based on enrichment of Campylobacter spp. is often needed when examining foods....
Tue, 12/04/2018 - 16:08
Publication date: December 2018 , Volume 227Author(s): Jodi Maree Courtice, Layla Khalid Mahdi, Peter John Groves, Michael KotiwAbstractSpotty Liver Disease is an acute infectious disease of layer chickens that was likely first described in the USA and Canada in the 1950s and 1960′s. The disease occurs almost exclusively in barn and free-range production systems. Outbreaks usually, but not...
Tue, 11/20/2018 - 00:00
Abstract Menaquinone is an obligatory component of the electron-transfer pathway in microorganisms. Its biosynthetic pathway was established by pioneering studies with Escherichia coli and it was revealed to be derived from chorismate by Men enzymes. However, we identified an alternative pathway, the futalosine pathway, operating in some microorganisms including Helicobacter...
Mon, 11/19/2018 - 19:00
ABSTRACTBroiler chicken meat is considered as the main source of foodborne Campylobacter infection. Campylobacter jejuni multilocus sequence type ST-5 has been previously identified as predominant among Latvian and Lithuanian broiler chicken meat products and is often isolated from Lithuanian patients with Campylobacter enteric infection. The market share of Lithuanian and Latvian origin fresh...
Fri, 11/16/2018 - 01:11
Kshipra Chandrashekhar, Vishal Srivastava, Sunyoung Hwang, Byeonghwa Jeon, Sangryeol Ryu, Gireesh Rajashekara
Thu, 11/15/2018 - 11:00
Conjugation is an important mechanism for horizontal gene transfer in Campylobacter jejuni, the leading cause of human bacterial gastroenteritis in developed countries. However, to date, the factors that significantly influence conjugation efficiency in Campylobacter spp. are still largely unknown. Given that multiple recombinant loci could independently occur within one recipient cell during...
Wed, 11/07/2018 - 19:00
ABSTRACTCampylobacter jejuni infection in humans is strongly associated with the consumption of contaminated poultry products. With increasing consumer demand for minimally processed and natural product, there is a need for novel intervention strategies for controlling C. jejuni. Antimicrobial coatings are increasingly being used for preventing food contamination due to their efficacy and...
Sat, 11/03/2018 - 01:10
Michael J. Rothrock, Kristina M. Feye, Sun Ae Kim, Si Hong Park, Aude Locatelli, Kelli L. Hiett, John Gamble, Holly Sellers, Steven C. Ricke
Thu, 10/25/2018 - 11:00
Campylobacter spp. are foodborne and waterborne pathogens. While rather accurate estimates for these pathogens are available in industrialized countries, a lack of diagnostic capacity in developing countries limits accurate assessments of prevalence in many regions. Proficiency in the identification and susceptibility testing of these organisms is critical for surveillance and control efforts....
Thu, 10/25/2018 - 11:00
Whole-genome sequencing (WGS) via next-generation sequencing (NGS) technologies is a powerful tool for determining the relatedness of bacterial isolates in foodborne illness detection and outbreak investigations. WGS has been applied to national outbreaks (for example, Listeria monocytogenes); however, WGS has rarely been used in smaller local outbreaks. The current study demonstrates the...
Tue, 10/23/2018 - 01:04
Lorena Hormeño, María Ugarte-Ruiz, Gonzalo Palomo, Carmen Borge, Diego Florez-Cuadrado, Santiago Vadillo, Segundo Píriz, Lucas Domínguez, Maria J. Campos, Alberto Quesada
Sun, 10/21/2018 - 20:00
Campylobacter jejuni (C. jejuni) is a leading cause of foodborne gastroenteritis worldwide. This bacterium lacks many of the classical virulence factors, and flagellum-associated persistent colonization has been ...
Wed, 10/17/2018 - 01:11
Assaf Rokney, Lea Valinsky, Jacob Moran-Gilad, Katleen Vranckx, Vered Agmon, Miriam Weinberger
Mon, 10/15/2018 - 17:00
Aya Tentaku, Takaaki Shimohata, Sho Hatayama, Junko Kido, Anh Quoc Nguyen, Yuna Kanda, Shiho Fukushima, Takashi Uebanso, Taketoshi Iwata, Kazuaki Mawatari, Nagakatsu Harada, Akira Takahashi Campylobacter jejuni is a major cause of bacterial foodborne illness in humans worldwide. Bacterial entry into a host eukaryotic cell involves the initial steps of adherence and invasion, which generally...
Sun, 10/14/2018 - 20:00
ABSTRACTCampylobacter is one of the leading cause of foodborne illness in the US and worldwide, especially linked to poultry and poultry products. In recent years, the increasing popularity of organic chicken products and chickens raised without antibiotics (RWA) has resulted in more companies adopting organic and antibiotic-free production and processing methods; however, it is not evident what...
Tue, 10/09/2018 - 00:00
Abstract Microencapsulation enhances the oral delivery of probiotic bacteria. In this study, the probiotic Escherichia coli Nissle 1917 (EcN) was microencapsulated using alginate and chitosan nanoparticles. The result showed 90% encapsulation yield of EcN, and the encapsulated EcN displayed significantly (P < 0.05) increased survival in low pH (1.5), high bile salt...
Wed, 10/03/2018 - 20:00
ABSTRACTThe aim of this work was to study the effects of spontaneous hyperphagia on the evolution of intestinal microbiota and body compartments in old goose. From October 25th to November 26th, 5-yr-old breeding Greylag Landaise geese (106 males and 106 females) were fed with grass during 1 mo (G period). From November 26th (0 d) the birds had ad libitum access to pellets (AMEn: 10.5 MJ/kg, CP:...
Wed, 09/26/2018 - 20:00
There are a number of reports indicating correlation between outbreaks of campylobacteriosis and the consumption of raw vegetables. This study is a meta-analysis on the prevalence of Campylobacter in fresh vegeta...
Wed, 09/26/2018 - 20:00
ABSTRACTCampylobacter is an important hazard responsible for many human gastroenteritis cases. As poultry meat is the main source of Campylobacter, many approaches to reduce the Campylobacter load in this meat have been published. In the present study minced and whole broiler breast meat samples were inoculated with Campylobacter (C.) jejuni and treated with different concentrations of the food...

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