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Principles of Bioenergetics summarizes one of the quickly growing branches of modern biochemistry. Bioenergetics concerns energy transductions occurring in living systems and this book pays special attention to molecular mechanisms of these processes. The main subject of the book is the "energy coupling membrane" which refers to inner membranes of intracellular organelles, for example, mitochondria and chloroplasts. Cellular cytoplasmic membranes where respiratory and photosynthetic energy transducers, as well as ion-transporting ATP-synthases (ATPases) are also part of this membrane. Significant attention is paid to the alternative function of mitochondria as generators of reactive oxygen species (ROS) that mediate programmed death of cells (apoptosis and necrosis) and organisms (phenoptosis). The latter process is considered as a key mechanism of aging which may be suppressed by mitochondria-targeted antioxidants.
Membrane bioenergetics is one of the most rapidly growing areas within physico-chemical biology. Main aspects treated in this book include energy conservation and utilization by membrane-linked molecular mechanisms such as intracellular respiration, photosynthesis, transport phenomena, rotation of bacterial flagella, and the regulation of heat production.
Aging is the progressive decline in biological functions over time. This decline targets macromolecules, cells, tissues and, as a consequence, whole organisms. Despite considerable progress in the development of testable hypothesis concerning aging in an evolutionary context, a unifying theory of the molecular/physiological mechanistic causes of aging has not been reached. In fact, is it not clear to what extent aging is a programmed or stochastic process. This book takes the reader from unicellular bacterial deterioration via senescence in fungi and worms to aging in rodents and humans, allowing a comparative view on similarities and differences in different genetic model systems. The different model systems are scrutinized in the light of contemporary aging hypothesis, such as the free radical and genomic instability theories.
Aging is a natural phenomenon that is peculiar to all living things. However, accumulating findings indicate that senescence could be postponed or prevented by certain approaches. Substantial evidence has emerged supporting the possibility of radical human health and lifespan extension, in particular through pharmacological modulation of aging. A number of natural dietary ingredients and synthetic drugs have been assumed to have geroprotective potential. In the development of anti-aging therapeutics, several cell, insect, and animal models may provide useful starting points prior to human studies. This book provides an overview of current research aimed to search for life-extending medicatio...
Evolution is a critical challenge for many areas of science, technology and development of society. The book reviews general evolutionary facts such as origin of life and evolution of the genome and clues to evolution through simple systems. Emerging areas of science such as "systems biology" and "bio-complexity" are founded on the idea that phenomena need to be understood in the context of highly interactive processes operating at different levels and on different scales. This is where physics meets complexity in nature, and where we must begin to learn about complexity if we are to understand it. Similarly, there is an increasingly urgent need to understand and predict the evolutionary beh...
First multi-year cumulation covers six years: 1965-70.
Membrane Proteins contains the proceedings of the 11th Meeting of the Federation of European Biochemical Societies, held in Copenhagen, Denmark in 1977. The meeting provided a forum for discussing progress that has been made in understanding membrane proteins. Topics covered range from hydrogen and electron transfer in mitochondria to energy-transferring systems as well as ATPases and hormone receptors. Comprised of 31 chapters, this volume begins by reporting the results of a study that examined the state of association of several important membrane proteins. The discussion then turns to future prospects for membrane structures; hydrogen and electron transfer in mitochondria; and the molecular mechanism of the respiratory chain proton pump. Subsequent chapters explore energy coupling in reconstituted segments of the respiratory chain; retinal-protein interaction in bacteriorhodopsin; the functional significance of protein-protein interactions in the sarcoplasmic reticulum; and the role of calcium in the action of insulin. This book will be of interest to biochemists.
Three-dimensional modeling and sequence data on protein, RNA, and DNA have contributed to the recent elucidation of evolutionary pathways in biological energy conversion and have allowed a new understanding of the molecular interrelationships between bacterial, plant, and animal systems. This timely book represents the latest information in the various subfields of biological energy conversion and presents the latest evolutionary picture. Written and edited by the leading authorities in this area, this title provides essential information for biochemists and biologists.
1. The Mitochondrial and Bacterial Respiratory Chains: From MacMunn and Keilin to Current Concepts; P. Nicholls. 2. The Mitochondrial Enzymes of Oxidative Phosphorylation; Y. Hatefi. 3. Proton Pumps of Respiratory Chain Enzymes; S. Papa, et al. 4. Uncoupling of Respiration and Phosphorylation; V.P. Skulachev. 5. Crystallization, Structure, and Possible Mechanism of Action of Cytochrome c Oxidase from the Soil Bacterium Paracoccus denitrificans; M. Hartmut, et al. 6. The Structure of Crystalline Bovine Heart Cytochrome c Oxidase; S. Yoshikawa, et al. 7. Electron and Proton Transfer in.
Microbial responses to acidic and alkaline pH are important in many areas of bacteriology. For example, the mechanisms of resistance to acidic pH are important in the understanding of the passage of human pathogens through the acid of the stomach; and an understanding of microbial degradation of alkaline industrial waste is important for the environment. Bringing together contributions from an international and interdisciplinary group of experts working on the many aspects of bacterial cellular responses to pH, this stimulating volume draws together new and innovative work in this area. It delineates both similarities and differences between mechanisms of tolerance and response, providing readers with an invaluable resource on the subject.