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Detection And Typing Strategies For Pathogenic Escherichia Coli
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Book Synopsis Detection and Typing Strategies for Pathogenic Escherichia coli by : Lucia Rivas
Download or read book Detection and Typing Strategies for Pathogenic Escherichia coli written by Lucia Rivas and published by Springer. This book was released on 2015-01-28 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief will review the methods that are currently available for the detection, isolation, and typing of pathogenic E. coli with a particular focus on foodborne diseases caused by the Shiga toxigenic E. coli group, which have been implicated in a number of significant outbreaks in recent years. Pathogenic forms of E. coli can cause a variety of diarrheal diseases in hosts due to the presence of specific colonization and virulence factors, and pathogenicity-associated genes, which are generally not present in other E. coli. Six pathotypes of pathogenic E. coli are recognized (Shiga toxigenic E. coli, Enteropathogenic E. coli, Enterotoxigenic E. coli, Enteroinvasive E. coli, Enteroaggregative E. coli and Diffusely Adherent E. coli) and certain strains among these groups are major public health concerns due to the severity of disease that they can cause. Methods to detect and isolate these pathogens from a variety of sources are constantly evolving. In addition, the accumulation of knowledge on these pathogens allows for improved intervention strategies.
Book Synopsis Emerging Approaches for Typing, Detection, Characterization, and Traceback of Escherichia coli, 2nd Edition by : Pina M. Fratamico
Download or read book Emerging Approaches for Typing, Detection, Characterization, and Traceback of Escherichia coli, 2nd Edition written by Pina M. Fratamico and published by Frontiers Media SA. This book was released on 2018-05-02 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pathogenic Escherichia coli strains cause a large number of diseases in humans, including diarrhea, hemorrhagic colitis, hemolytic uremic syndrome, urinary tract infections, and neonatal meningitis, while in animals they cause diseases such as calf scours and mastitis in cattle, post-weaning diarrhea and edema disease in pigs, and peritonitis and airsacculitis in chickens. The different E. coli pathotypes are characterized by the presence of specific sets of virulence-related genes. Therefore, it is not surprising that pathogenic E. coli constitutes a genetically heterogeneous family of bacteria, and they are continuing to evolve. Rapid and accurate molecular methods are critically needed to detect and trace pathogenic E. coli in food and animals. They are also needed for epidemiological investigations to enhance food safety, as well as animal and human health and to minimize the size and geographical extent of outbreaks. The serotype of E. coli strains has traditionally been determined using antisera raised against the >180 different O- (somatic) and 53 H- (flagellar) antigens. However, there are many problems associated with serotyping, including: it is labor-intensive and time consuming; cross reactivity of the antisera with different serogroups occurs; antisera are available only in specialized laboratories; and many strains are non-typeable. Molecular serotyping targeting O-group-specific genes within the E. coli O-antigen gene clusters and genes that are involved in encoding for the different flagellar types offers an improved approach for determining the E. coliO- and H-groups. Furthermore, molecular serotyping can be coupled with determination of specific sets of virulence genes carried by the strain offering the possibility to determine O-group, pathotype, and the pathogenic potential simultaneously. Sequencing of the O-antigen gene clusters of all of the known O-groups of E. coli is now complete, and the sequences have been deposited in the GenBank database. The sequence information has revealed that some E. coli serogroups have identical sequences while others have point mutations or insertion sequences and type as different serogroups in serological reactions. There are also a number of other ambiguities in serotyping that need to be resolved. Furthermore, new E. coli O-groups are being identified. Therefore, there is an essential need to resolve these issues and to revise the E. coli serotype nomenclature based on these findings. There are emerging technologies that can potentially be applied for molecular serotyping and detection and characterization of E. coli. On a related topic, the genome sequence of thousands of E. coli strains have been deposited in GenBank, and this information is revealing unique markers such as CRISPR (clustered regularly interspaced short palindromic repeats) and virulence gene markers that could be used to identify E. coli pathotypes. Whole genome sequencing now provides the opportunity to study the role of horizontal gene transfer in the evolution and emergence of pathogenic E. coli strains. Whole genome sequencing approaches are being investigated for genotyping and outbreak investigation for regulatory and public health needs; however, there is a need for establishing bioinformatics pipelines able to handle large amounts of data as we move toward the use of genetic approaches for non-culture-based detection and characterization of E. coli and for outbreak investigations.
Book Synopsis Methods for Detection and Molecular Characterisation of Pathogenic Escherichia Coli by :
Download or read book Methods for Detection and Molecular Characterisation of Pathogenic Escherichia Coli written by and published by . This book was released on 2007 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shiga toxin-producing Escherichia coli in human, cattle and foods. Strategies for detection and control by : Nora Lía Padola
Download or read book Shiga toxin-producing Escherichia coli in human, cattle and foods. Strategies for detection and control written by Nora Lía Padola and published by Frontiers E-books. This book was released on 2014-11-11 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shiga toxin-producing Escherichia coli (STEC) is an important foodborne pathogen associated with both outbreaks and sporadic cases of human disease, ranging from uncomplicated diarrhoea to haemorrhagic colitis (HC) and haemolytic uraemic syndrome (HUS). STEC affects children, elderly and immuno-compromised patients. STEC is capable of producing Shiga toxin type 1 (Stx1), type 2 (Stx2) or both, encoded by stx1 and stx2 genes, respectively. These strains are likely to produce putative accessory virulence factors such as intimin (encoded by eae), an enterohaemolysin (EhxA) and an autoagglutinating protein commonly associated with eae-negative strains (Saa), both encoded by an enterohaemorrhagic plasmid. Several studies have confirmed that cattle are the principal reservoir of STEC (O157 and non-O157:H7 serotypes) and many of these serotypes have been involved in HUS and HC outbreaks in other countries. Transmission of STEC to humans occurs through the consumption of undercooked meat, vegetables and water contaminated by faeces of carriers and by person-to-person contact. Diagnostic methods have evolved to avoid selective diagnostics, currently using molecular techniques for typing and subtyping of strains. Control is still a challenge, although there are animal vaccines directed against the serotype O157:H7.
Book Synopsis Molecular Medical Microbiology by : Yi-Wei Tang
Download or read book Molecular Medical Microbiology written by Yi-Wei Tang and published by Academic Press. This book was released on 2023-11-21 with total page 3535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Medical Microbiology, Third Edition presents the latest release in what is considered to be the first book to synthesize new developments in both molecular and clinical research. The molecular age has brought about dramatic changes in medical microbiology, along with great leaps in our understanding of the mechanisms of infectious disease. This third edition is completely updated, reviewed and expanded, providing a timely and helpful update for microbiologists, students and clinicians in the era of increasing use of molecular techniques, changing epidemiology and prevalence, and increasing resistance of many pathogenic bacteria. Written by experts in the field, chapters include cutting-edge information and clinical overviews for each major bacterial group, along with the latest updates on vaccine development, molecular technology and diagnostic technology. Completely updated and revised edition of this comprehensive and accessible reference on molecular medical microbiology Includes full color presentations throughout Delves into in-depth discussions on individual pathogenic bacteria in a system-oriented approach Includes a clinical overview for each major bacterial group Presents the latest information on vaccine development, molecular technology and diagnostic technology Provides more than 100 chapters on all major groups of bacteria
Book Synopsis Escherichia coli, a Versatile Pathogen by : Gad Frankel
Download or read book Escherichia coli, a Versatile Pathogen written by Gad Frankel and published by Springer. This book was released on 2018-11-02 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Escherichia coli is a facultative anaerobic Gamma-proteobacterium, which belongs to the family Enterobacteriaceae. While being an important constituent of the normal gut microbiota, specialized E. coli clones have acquired genetic elements that allow them to compete with the endogenous commensals, colonise normally sterile niches and cause disease. E. coli pathotypes can cause intestinal and extra intestinal infections (e.g. UTI, sepsis) and associate with mammalian cells while being extra- or intra-cellular. In recent years, E. coli infections have become a serious clinical problem, due to the rapid spread of antibiotic resistance. Thus, infections with intestinal E. coli (e.g. E. coli O104) or extraintestinal pathogenic strains (e.g. E. coli ST131) are becoming difficult to treat and are often lethal. Consequently, there is a pressing need to develop alternative control measures, including the identification of new drug targets and development of vaccines that offer lasting protection. This volume focuses on several types of E. coli infections (intestinal and extraintestinal), virulence factors, and E. coli pandemics. It addresses the problem of antibiotic resistance, and a dedicated chapter discusses the need to develop alternative control measures. Given its depth and breadth of coverage, the book will benefit all those interested in the biology, genetics, physiology and pathogenesis of E. coli, and in related vaccine development.
Book Synopsis Advances in Food and Nutrition Research by :
Download or read book Advances in Food and Nutrition Research written by and published by Academic Press. This book was released on 2017-04-26 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Food and Nutrition Research, Volume 82, provides updated knowledge about nutrients in foods and how to avoid their deficiency, especially for those essential nutrients that should be present in the diet to reduce disease risk and optimize health. The series provides the latest advances on the identification and characterization of emerging bioactive compounds with putative health benefits, as well as up-to-date information on food science, including raw materials, production, processing, distribution and consumption, with an emphasis on nutritional benefits and health effects. Features input from contributors who have been carefully selected based on their long experience and high expertise on the subject Provides an updated and in-depth critical discussion of the latest knowledge about nutrients in foods and how to avoid their deficiency Provides the latest advances on the identification and characterization of emerging bioactive compounds with putative health benefit Offers up-to-date information on food science, including raw materials, production, processing, distribution and consumption, with an emphasis on nutritional benefits and health effects
Book Synopsis Pathogenic Escherichia Coli by : Pina M. Fratamico
Download or read book Pathogenic Escherichia Coli written by Pina M. Fratamico and published by . This book was released on 2018-04 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Escherichia coli is an important member of the normal healthy microbiome of humans and other mammals. In addition, some strains are thought to be probiotic, and therefore beneficial to the host. However, other strains of E. coli have evolved into highly versatile, and frequently deadly, pathogens, the resultant diseases causing significant economic loss and public health burdens worldwide. Recent studies have shown that the E. coli genome has a high plasticity allowing it to adapt to new niches and survive in stressful conditions and to evolve into new hybrid strains with shared genes, including virulence genes. Omics and whole genome sequencing approaches have transformed research in this field allowing fascinating new insights into the molecular and cellular biology of the bacterium thus paving the way for the development of novel therapeutic strategies. Under the expert guidance of the editors in this book, renowned international authors provide timely and up-to-date reviews of current cutting-edge E. coli omics, molecular- and cellular-biology research. Topics range from E. coli genome plasticity and evolution to the application of omics technologies for in silico modeling to understand stress-triggered physiological responses. This authoritative volume is essential reading for scientists, both experts and students, working on pathogenic E. coli in academia, government, and biotechnology companies. It is also a must-read for anyone with an interest in bacterial pathogenesis and an important acquisition for all microbiology libraries.
Book Synopsis Dairy in Human Health and Disease across the Lifespan by : Ronald Ross Watson
Download or read book Dairy in Human Health and Disease across the Lifespan written by Ronald Ross Watson and published by Academic Press. This book was released on 2017-06-19 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dairy in Human Health and Disease across the Lifespan addresses the contribution of milk to the human diet and health throughout the life span. This comprehensive book is divided into three sections and presents a balanced overview of dairy’s impact on nutrition from infancy to adulthood. Summaries capture the most salient points of each chapter, and the book provides coverage of dairy as a functional food in health and disease. Presents various dairy products and their impact on health specific to various stages in the lifespan Provides information to identify which food and diet constituents should be used as dietary supplements based on modification of health and nutrition Incorporates contributions from an international team of authors with varying areas of expertise related to dairy and nutrition
Book Synopsis Encyclopedia of Microbiology by : Thomas M. Schmidt
Download or read book Encyclopedia of Microbiology written by Thomas M. Schmidt and published by Academic Press. This book was released on 2019-09-11 with total page 3248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Microbiology, Fourth Edition, Five Volume Set gathers both basic and applied dimensions in this dynamic field that includes virtually all environments on Earth. This range attracts a growing number of cross-disciplinary studies, which the encyclopedia makes available to readers from diverse educational backgrounds. The new edition builds on the solid foundation established in earlier versions, adding new material that reflects recent advances in the field. New focus areas include `Animal and Plant Microbiomes’ and ‘Global Impact of Microbes`. The thematic organization of the work allows users to focus on specific areas, e.g., for didactical purposes, while also browsing for topics in different areas. Offers an up-to-date and authoritative resource that covers the entire field of microbiology, from basic principles, to applied technologies Provides an organic overview that is useful to academic teachers and scientists from different backgrounds Includes chapters that are enriched with figures and graphs, and that can be easily consulted in isolation to find fundamental definitions and concepts
Book Synopsis Pathogenic Escherichia Coli in Latin America by : Alfredo G. Torres
Download or read book Pathogenic Escherichia Coli in Latin America written by Alfredo G. Torres and published by Bentham Science Publishers. This book was released on 2010 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pathogenic Escherichia coli are known to be a common cause of diarrheal disease - a common cause of frequently occurring bacterial infections in children and adults in developing countries. It poses a significant problem in Latin America. Pathogenic Escherichia coli in Latin America presents current information on understanding pathogenic E. coli in Latin America and outlines prospects for future research in this region. It features a unique, comprehensive analysis of the most common categories of E. coli associated with diarrheal illness in Latin America. The aim of this book is to help epide.
Book Synopsis Multiplexed Waterborne Pathogen Detection Using DNA Microarrays by : Timothy M. Straub
Download or read book Multiplexed Waterborne Pathogen Detection Using DNA Microarrays written by Timothy M. Straub and published by American Water Works Association. This book was released on 2006 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The water treatment industry has a long-term research interest in using molecular biology techniques for the identification of potential pathogens in drinking water supplies. The primary objective of this research was to develop deeply mutiplexed hybridization assays to simultaneously detect different pathogen groups in water.
Book Synopsis Trending Topics in Escherichia coli Research by : Alfredo G. Torres
Download or read book Trending Topics in Escherichia coli Research written by Alfredo G. Torres and published by Springer Nature. This book was released on 2023-06-28 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Latin American region has been at the forefront in combating infections caused by Escherichia coli strains in humans, animals, and the environment. The continuous emergence and evolution of pathogenic E. coli strains associated with human and animal infections have demonstrated that (i) groups of related pathogenic E. coli are responsible for most infections caused by this bacterial species; (ii) diverse virulence phenotypes expressed during infection defined each one of these pathogroups; (iii) the geographical distribution of pathogroups in Latin America and the evolution of new isolates was defined by the dominant pathogroup and presence of distinct virulence strains; (iv) acquisition of mobile elements or accumulation of point mutations accelerate the development of antibiotic resistance in some of these strains. The Latin American Coalition for Escherichia coli Research (LACER), a multidisciplinary network of over seventy research groups in eleven Latin American countries and the USA, was established in 2009 to apply One Health principles in defining and combating this pathogen. The previous edition of this text, Escherichia coli in the Americas (c. 2016) was the culmination of their wisdom about E. coli, from its role as a commensal bacterium to its characteristics as a pathogen causing disease in animals and humans. This new edition presents recent advances and contextualizes all aspects of E. coli in a One Health perspective, from the environment, to animals, to humans. It addresses E. coli interactions with host microbiota, CNS, and phages. It includes cutting edge insights on hybrid strains, molecular mechanisms of virulence and pathogenesis, resistance, domestic and wild reservoirs, disease surveillance in Latin America, genomic analysis, food safety, and new therapies. Crucially, it also provides translations and analysis of key reports on Escherichia coli published in Spanish and Portuguese. This book serves as a critical resource for scientists in industry and academia, clinicians managing associated infections, and trainees and students studying basic and clinical aspects of E. coli pathogenesis.
Book Synopsis Escherichia coli by : Victor A. Garcia-Angulo
Download or read book Escherichia coli written by Victor A. Garcia-Angulo and published by Elsevier Inc. Chapters. This book was released on 2013-06-12 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to the well-established and extensively studied categories of pathogenic E. coli, there are other groups of E. coli associated with diarrheal and/or inflammatory bowel diseases that have not been thoroughly characterized or which are considered newly emergent pathogens. This chapter focuses on three representatives of these groups of pathogenic E. coli and the current progress understanding their role in pathogenesis. Diffusely adherent E. coli (DAEC) are a collection of isolates that colonize the small bowel, considered potentially diarrheagenic, and that can cause childhood diarrhea. Adherent and invasive E. coli (AIEC) are a group of mucosa-associated bacteria with invasive properties in Crohn’s disease patients and can survive and replicate extensively in macrophages. Finally, E. coli O104:H4, a hybrid Shiga toxin-producing enteroaggregative E. coli, which caused a large outbreak in Europe in 2011, displays a unique combination of virulence traits resulting in the development of hemolytic uremic syndrome in an unusually large proportion of infected patients. This chapter summarizes recent progress in understanding the pathogenesis and the clinical outcome of these types of E. coli infections.
Book Synopsis Interaction of Pathogenic Escherichia coli with the Host: Pathogenomics, Virulence and Antibiotic Resistance by : Tânia Aparecida Tardelli Gomes
Download or read book Interaction of Pathogenic Escherichia coli with the Host: Pathogenomics, Virulence and Antibiotic Resistance written by Tânia Aparecida Tardelli Gomes and published by Frontiers Media SA. This book was released on 2021-05-24 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Escherichia coli in the Americas by : Alfredo G. Torres
Download or read book Escherichia coli in the Americas written by Alfredo G. Torres and published by Springer. This book was released on 2016-10-14 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial diarrheal diseases remain an important leading cause of preventable death, especially among children under five in developing countries. In the American continent, diarrheal disease and other health complications caused by Escherichia coli constitute a major public health problem, and, therefore, several research groups have dedicated their effort to understand this pathogen and provide feasible solutions to prevent, treat and reduce E. coli infections. The Latin American Coalition for Escherichia coli Research (LACER) was created as a multidisciplinary network of international research groups working with E. coli with the ultimate goal of advancing understanding of E. coli, and to prepare the next generation of American E. coli investigators. As such, this book compiles the knowledge of these investigators about E. coli, a commensal bacteria living inside its host, and a pathogen causing disease in animals and humans. Escherichia coli in the Americas contains a series of 15 chapters written by experts, covering basic concepts regarding the different categories of E. coli, including their environmental niche, virulence mechanisms, host reservoir, and disease outcomes, as well as diagnosis, vaccine development and treatment. This book's target audience include trainees and students learning about the basic and clinical aspects of E. coli pathogenesis, as well as experts around the globe who wish to learn more about this pathogen and the public health impact this bacteria has in America.
Book Synopsis E. Coli Infections by : Luis Rodrigo
Download or read book E. Coli Infections written by Luis Rodrigo and published by BoD – Books on Demand. This book was released on 2020-09-30 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gram-negative Escherichia coli (E. coli) bacteria are the most numerous commensal aerobic germs located in the human colon. Diarrhea caused by E. coli pathogenic strains is a major cause of death in developing countries, especially the sub-Saharan and South Asian areas. Some strains cause diarrhea, and all of them may produce an infectious disease. This book includes ten chapters covering the main aspects of infections related to E. coli, their pathogenic mechanisms, treatments, and resistance to diverse antibiotics.
