Read more
Informationen zum Autor The Novartis Foundation is an international scientific and educational charity which promotes the study and general knowledge of science and in particular encourages international co-operation in scientific research. Chairman: Peter Emery Klappentext Acetaldehyde contributes to pathologies ranging from cancer to asthma. It affects the whole body, the architecture of the cell and molecular control mechanisms. The origins of acetaldehyde vary from bacteria in the oral cavity and intestinal tract to atmospheric acetaldehyde as an environmental pollutant. Significant amounts of acetaldehyde are also derived from cigarette smoke and alcohol, both of which are major contributors to disease globally.Acetaldehyde has deleterious effects in the liver, brain and skeletal muscle. It has also been shown that bacteria can generate significant amounts of acetaldehyde in the gastrointestinal tract, thus contributing to carcinogenesis in this tissue. Many of the toxic effects of ethanol ingestion are mediated through acetaldehyde and there is increasing awareness that acetaldehyde is a principal disease-forming agent in tobacco-related illnesses.Alcohol is metabolized by conversion to acetaldehyde, which in turn is converted to acetate by aldehyde dehydrogenase (ALDH). There are a number of forms of ALDH of which the mitochondrial isoform (ALDH2) is particularly important. The ALDH2 gene has a functional polymorphism: homozygous subjects have little or no ALDH2 activity compared to their wild-type counterparts. Heterozygotes generally also have low ALDH2 activity. Epidemiological studies have found increased risk of certain diseases, including cancer of the gastrointestinal tract, alcoholic liver disease and late-onset Alzheimer's disease in subjects with ALDH2 deficiency.This book features contributions from researchers working on all aspects of acetaldehyde-related pathology. From their expert accounts and the lively discussions accompanying each chapter, we can derive a better understanding of the pathogenesis of diseases in which acetaldehyde, from whichever source, is implicated. Zusammenfassung Acetaldehyde-Related Pathology brings together contributions from experts working on all aspects of acetaldehyde-related pathology in order to better understand the pathogenesis of diseases in which acetaldehyde, from whichever source, is implicated. Inhaltsverzeichnis Symposium on Acetaldehyde-related pathology: bridging the trans-disciplinary divide, held at the Novartis Foundation, London 5-7th September 2006 Editors: Derek J. Chadwick (Organizer) and Jamie Goode This symposium is based on a proposal made by Victor Preedy, Peter Emery and Mikko Salaspuro Peter Emery Chair's introduction 1 David W. Crabb and Suthat Liangpunsakul Acetaldehyde generating enzyme systems: roles of alcohol dehydrogenase, CYP2E1 and catalase, and speculations on the role of other enzymes and processes 4 Discussion 16 Richard A. Deitrich, Dennis Petersen and Vasilis Vasiliou Removal of acetaldehyde from the body 23 Discussion 40 Shih-Jiun Yin and Giia-Sheun Peng Acetaldehyde, polymorphisms and the cardiovascular system 52 Discussion 63 Jun Ren Acetaldehyde and alcoholic cardiomyopathy: lessons from the ADH and ALDH2 transgenic models 69 Discussion 76 Mikko Salaspuro Interrelationship between alcohol, smoking, acetaldehyde and cancer 80 Discussion 89 Hiroto Matsuse, Chizu Fukushima, Terufumi Shimoda, Sadahiro Asai and Shigeru Kohno Effects of acetaldehyde on human airway constriction and inflammation 97 Discussion 106 Helmut K. Seitz The role of acetaldehyde in alcohol-associated cancer of the gastrointestinal tract 110 Discussion 119 Robert Tardif The determination of acetaldehyde in exhaled breath 125 Discussion 133 Mostofa Jamal, Kiyoshi Ameno...
