Helicobacter Pylori And Gastric Cancer

This volume explores in detail the molecular biology, genetics and immunology of the bacterium Helicobacter pylori that causes serious gastric diseases such as gastric cancer. The book provides in-depth insights into the mechanisms of H. pylori-induced pathogenicity, gives an overview of how the bacterium colonizes the human gut, how it manages to persist in the body and which factors play a role in the development of H. pylori-induced gastric cancer. Furthermore, the interaction between the Gram-negative bacterium and the human gut microbiome is explored, and clinical management and treatment strategies to combat gastric cancer are discussed. Helicobacter pylori is an extremely successful pathogen that persistently colonizes the gut of about 50% of the world’s population. H. pylori and its human host share a long co-evolutionary relationship that dates back for at least last 100,000 years and possibly longer. Infection by this bacterium is a high-risk factor for the development of gastric diseases, including gastric cancer. Gastric cancer is associated with high morbidity and mortality and represents the 5th most common malignant tumour and the 4th leading cause of cancer-related death worldwide. H. pylori is the first bacterium that has been classified as a type-I carcinogen by the International Agency for Research on Cancer (IARC). Recent research progress identified crucial bacterial, host and environmental factors which control H. pylori-induced gastric malignancy. New studies also suggest that specific human germline mutations and other genetic aberrations have an important impact on H. pylori-induced pathology. In this volume, all these recently discovered mechanisms are reviewed in the light of gastric cancer development, and H. pylori epidemiology, virulence factors, immune evasion, pathophysiology, cancer signalling and novel therapeutic protocols are presented. This volume is aimed at researchers in the fields of immunology, genetics, microbiology and medicine who are interested in the detailed mechanisms of the pathogenicity of this carcinogenic stomach bacterium.

THE ESSENTIAL WORK IN TRAVEL MEDICINE -- NOW COMPLETELY UPDATED FOR 2018 As unprecedented numbers of travelers cross international borders each day, the need for up-to-date, practical information about the health challenges posed by travel has never been greater. For both international travelers and the health professionals who care for them, the CDC Yellow Book 2018: Health Information for International Travel is the definitive guide to staying safe and healthy anywhere in the world. The fully revised and updated 2018 edition codifies the U.S. government's most current health guidelines and information for international travelers, including pretravel vaccine recommendations, destination-specific health advice, and easy-to-reference maps, tables, and charts. The 2018 Yellow Book also addresses the needs of specific types of travelers, with dedicated sections on: · Precautions for pregnant travelers, immunocompromised travelers, and travelers with disabilities · Special considerations for newly arrived adoptees, immigrants, and refugees · Practical tips for last-minute or resource-limited travelers · Advice for air crews, humanitarian workers, missionaries, and others who provide care and support overseas Authored by a team of the world's most esteemed travel medicine experts, the Yellow Book is an essential resource for travelers -- and the clinicians overseeing their care -- at home and abroad.

The book covers all aspects of endoscopic biopsies of the stomach inclusive of gastritis and gastropathies. It highlights the best way of handling of endoscopic biopsies in the endoscopic room by the gastroenterologist. It elucidates various steps involved in processing of the biopsy, tissue embedding and paraffin sectioning, approach to interpretation, various precautions that require to be taken while interpreting the biopsies, and the essential background knowledge of the interpreter. The book highlights the importance of the little things for a proper reading like matching of the tissue fragments received and the number of tissue present on a slide after the paraffin section. Chapters cover various forms of gastritis, and the easiest approach for daily routine by avoiding the cumbersome classifications and staging formulated for gastritis. It also discusses the utilization of the right nomenclature for acute and chronic gastritis and various other subtypes of gastritis. Chapters include various rarer and infrequently come across conditions of both acute and chronic gastritis, special form of gastritis and infective conditions. It also includes unusual forms of non-neoplastic gastric pathologies such as, a condition, where the gastric mucosa is affected not only by direct exposure to various irritants but may also be affected by many systemic diseases. It also highlights the frequently observed changes in chronic renal and liver failures. The book is targeted to all the practicing pathologists as well as graduate and post graduate students who are keen to learn about non-neoplastic gastric pathology at various levels.

Gastric cancer is the second most common cause of cancer mortality worldwide. Although the incidence of gastric cancer has declined over the past century in the United States, it remains one of the most common gastrointestinal neoplasms, particularly in immigrants and the socio-economically deprived. Recent years have seen major advances in our understanding of the pathogenesis of gastric cancer (especially regarding the importance of Helicobacter pylori and its associated inflammatory response) and the emergence of adjuvant oncologic therapies of proven benefit for advanced cases, in addition to surgery. As for gastric adenocarcinoma, elucidation of the underlying biology and molecular pathogenesis has led to much progress in the management of two other malignant gastric neoplasms, gastrointestinal stromal tumors and marginal zone B-cell (“MALT ) lymphomas. This monograph highlights these developments, presenting an updated overview of gastric cancer that will be of interest to all practicing gastroenterologists.

Helicobacter pylori is an universally distributed bacterium which affects more than half of the world population. H. pylori infection causes persistent inflammation with different clinical outcomes in humans, including chronic gastritis, peptic ulcer disease and gastric cancer. The infection has also been associated with several extradigestive disorders. In this book there is a comprehensive overview of contributors on H. pylori infection in diverse areas, including virulence factors of H. pylori and their importance for the clinical outcome of the diseases, discussions about the principal therapeutic regimens of bacterium eradication, also considering the antimicrobial resistance. H. pylori is clearly a very interesting bacteria and great studies and discussions about all its aspects are welcome to the medical and scientific communities.

Gastric cancer is the second most common cause of cancer-related death in the world. There are no screening tests available for its diagnosis, therefore patients usually presents in late stages, associated with poor prognosis. Currently, many efforts are made toward new advances in the treatment strategies. The book makes an insight into the assessment of premalignant lesions, current management of early gastric cancer, risk and protective factors in gastric carcinogenesis. "Gastric cancer" provides a detailed description of the morphologic classification, molecular changes and epigenetic alterations of this tumor. The book describes the role of different diagnostic tools in the preoperative assessment of patients and the most important factors contributing to the prognosis. Moreover, it describes the current surgical and chemotherapeutic options for gastric neoplasm. This publication may open new and interesting gates for further research concerning carcinogenesis, genetic and epigenetic alterations, signaling pathways, H. pylori infection, the discovery of protective factors against gastric cancer and of revolutionary therapies of this tumor.

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.

This book provides essential insights into the various pathogeneses, diagnoses and therapies for patients with gastric cancer. Special attention is given to trending topics: endoscopic diagnosis, cancer screening and eradication of H. pylori as prevention of the disease. A dedicated section focuses on risk classification and cancer screening/diagnosis, and is intended for practical use in clinical doctors’ day-to-day management of patients. Since cancer screening and prevention is currently only practiced in Japan, this book is intended to disseminate new findings and serve as a point of departure for further research. Abundant color illustrations of the enhanced endoscopic imaging are also included, making it a valuable resource for GI medical doctors, medical students and those seeking detailed information on H. pylori.​