This book compared the effectiveness of sequential therapy to standard triple therapy in the eradication of Helicobacter Pylori which is the main known cause of gastritis gastro-duodenal ulcer disease and gastric cancer. However, after more than 20 years of experience in H. pylori treatment, the ideal regimen to treat this infection has still to be found. Currently, apart from having a good knowledge of first-line eradication regimens, clinicians involved in the treatment of diseases caused by this pathogen must also be prepared to accept failures. Therefore, those involved in the design of a treatment strategy should not focus on the results of primary therapy alone, but also the make choices regarding a 'rescue' based on the overall eradication rate. According to several international guidelines, the first-line therapy for treating H. pylori infection consists of a proton pump inhibitor with any of two antibiotics, given for a 7-14 day period. However, even with these recommended regimens, H. pylori eradication failure is still observed in more than 20% of patients, and the failure rate of first-line therapy may be higher in clinical practice. Therefore, an alternative sequen
This book focuses on immune reactions and interactions of humans with Helicobacter pylori - a human pathogen connected to gastritis, peptic ulcers and even gastric cancer. With nearly half of the world's population colonized, it has been characterized as one of the most successful pathogens for more than 100,000 years of co-evolution with its host. The respective chapters discuss not only how H. pylori infection is considered a paradigm for persistent bacterial infection and chronic inflammation, but also how the infection might be connected to host protection against gastro-esophageal diseases, asthma, and other allergic disease manifestations. Readers will gain essential insights into the roles of specific factors in the immune response and learn about the impact of genetic polymorphisms on the risk of gastric carcinogenesis. In addition, the book discusses the strategies used by this bacterium, which allow it to colonize specific sites in the stomach, interact with the microbiome, evade immune surveillance and undermine the resolution of inflammation during persistent infection.This volume presents a concise summary of recent advances in the areas of induction, resolution and escape of inflammation, innate and adaptive immunity, gastric disease development, as well as treatment and vaccination against H. pylori . Accordingly, it offers a valuable asset for scientists and clinicians alike.
Type IV secretion systems (T4SSs) are highly versatile membrane-associated transporter machines used by Gram-negative and Gram-positive bacteria to deliver substrate molecules to a large variety of target cells. This volume summarizes our current knowledge of the large variety and structural diversity of T4SSs in pathogenic Escherichia, Agrobacterium, Legionella, Coxiella, Bartonella, Helicobacter, Enterococcus and other species. Divided into 13 chapters contributed by leading experts, it presents findings that significantly enhance our understanding of how various pathogens manipulate host cell functions to trigger bacterial uptake, promote intracellular growth, suppress defense mechanisms and of how bacteria spread antibiotic resistances, thus facilitating bacterial colonization and disease development. The book is an invaluable source of information for researchers and clinicians.
This volume details our current understanding of the architecture and signaling capabilities of known canonical and non-canonical inflammasome complexes and highlights their action, in particular in response to infection with important bacterial model organisms and the corresponding disease pathologies. The first chapters review new insights into the assembly and structures of inflammasome components and emphasize general strategies of up- and downstream signaling events. In addition, the authors specifically discuss the composition and activity of inflammasomes during infection with various gut pathogens ( Salmonella , Shigella , Yersinia , Listeria and Helicobacter ), respiratory pathogens ( Mycobacterium , Legionella , Burkholderia and Streptococcus ) as well as skin and soft tissue pathogens ( Francisella and Staphylococcus ). The discoveries presented provide a better understanding of the cellular and molecular biology of inflammasomes, which will pinpoint important new therapeutic targets for the treatment and prevention of multiple infectious diseases in the future. It is a valuable resource for students, scientists and clinicians, providing up-to-date information on this emerging research topic.
This volume reviews the current state of research concerning bacterial virulence factors and the infection biology of Helicobacter pylori , which is the leading cause of peptic ulcers and gastric cancer worldwide. The chapters include cutting-edge findings on this fascinating microbe and discuss the general strategies of H. pylori infection and persistence, news on important H. pylori virulence factors, crosstalk with the microbiota, hot novel models and signaling mechanisms, risk factors of gastric disease and stomach cancer, and the impact of H. pylori infection on non-gastric diseases. Written by internationally respected scientists, this book will appeal to clinicians, researchers and advanced students alike.