This volume provides a comprehensive description of phospholipid metabolism in brain, activities of phospholipases A2, and their involvement in neurological disorders. The purpose of this book is to present readers with cutting edge information in a lively manner that is useful not only to student and teachers but also to researchers and physicians.
One of the most active and productive areas of biological science in the past decade has been the study of the biochemical and biophysical prop erties of cell membranes. There is little doubt that membranes are essen tial components of all cellular systems and that each type of membrane manifests specific and characteristic cellular functions. In the nervous system, important events such as neurotransmission, receptor binding, ion transport, axonal transport, and cell uptake are all known to take place within the neural cell membrane. Phospholipids, one of the major components of membranes, not only provide the membrane with its structural integrity and physical proper ties, but also play an important role in regulating membrane function. Attention has recently been focused on the asymmetric localization of these molecules, the identification of discrete metabolic pools of phospholipids within the membrane matrix, and their involvement in sig nal transmission. Although synaptic membranes generally lack an active mechanism for the de novo biosynthesis of phospholipids, a number of enzymic routes are present for their interconversions and for facilitating metabolic turnover. Metabolites generated during the interconversion reactions may also exert a great influence in modulating membrane func tions. The phosphogylcerides of neural membranes are especially enriched in polyunsaturated fatty acids. However, only very small amounts of these fatty acids are present in the free form, and they are maintained in dynamic equilibrium with the membrane phospholipids.
Diagnosis and Management in Dementia: The Neuroscience of Dementia, Volume 1 consolidates different fields of dementia into a single book, covering a range of subjects, including Alzheimer's disease, Lewy body dementia, mixed dementia, vascular dementia, physical activity, risk factors, mortality, biomarkers, SPECT, CT, MRI, questionnaires, nutrition, sleep, delirium, hearing loss, agitation, aggression, delusions, anxiety, depression, hallucinations, psychosis, senile plaques, tau and amyloid-beta, neuroinflammation, molecular biology, and more. With an impact on millions globally, and billions of research dollars being invested in dementia research, this book will stimulate research in the area and inform researchers. - Offers comprehensive coverage of a broad range of topics related to dementia - Serves as a foundational collection for neuroscientists and neurologists on the biology of dementia and brain dysfunction - Contains in each chapter an abstract, key facts, mini dictionary of terms, and summary points to aid in understanding - Provides unique sections on specific subareas, intellectual components, and knowledge-based niches that will help readers navigate key areas for research and further clinical recommendations - Features preclinical and clinical studies to help researchers map out key areas for research and further clinical recommendations - Serves as a "one-stop" source for everything you need to know about dementia
Lipids are the most abundant organic compounds found in the brain, accounting for up to 50% of its dry weight. The brain lipidome includes several thousands of distinct biochemical structures whose expression may greatly vary according to age, gender, brain region, cell type, as well as subcellular localization. In synaptic membranes, brain lipids specifically interact with neurotransmitter receptors and control their activity. Moreover, brain lipids play a key role in the generation and neurotoxicity of amyloidogenic proteins involved in the pathophysiology of neurological diseases. The aim of this book is to provide for the first time a comprehensive overview of brain lipid structures, and to explain the roles of these lipids in synaptic function, and in neurodegenerative diseases, including Alzheimer's, Creutzfeldt-Jakob's and Parkinson's. To conclude the book, the authors present new ideas that can drive innovative therapeutic strategies based on the knowledge of the role of lipids in brain disorders. - Written to provide a "hands-on" approach for readers - Biochemical structures explained with molecular models, and molecular mechanisms explained with simple drawings - Step-by-step guide to memorize and draw lipid structures - Each chapter features a content summary, up-to-date references for additional study, and a key experiment with an explanation of the technique
Basic Sciences in Ophthalmology aims to link clinical ophthalmology directly to its basic science roots. This first volume describes the physics and chemistry required for a sound understanding of modern ophthalmology. The book opens with an extensive discussion of the interaction of light with matter and the way in which light is used in ophthalmic examinations and treatments. After describing traditional methods of imaging, particular emphasis is placed on modern instrumentation such as OCT. The interaction between light and tissues in different types of laser treatment is also addressed. The chemistry section focuses on compounds particularly relevant to the eye, such as oxygen and water. The origin and consequences of oxidative stress are reviewed, and the physical behavior of chemical compounds in the eye is explained. Understanding is facilitated through the use of many examples taken from the field of ophthalmology. The text is complemented by about 450 figures.
When confronted with a neurological or psychiatric disorder in an elderly individual, a clinician or researcher is likely to ask how the processes of ageing have influenced the aetiology and presentation of the disorder, and will impact on its efficient management. There are many urban myths about ageing, and some of these apply to the brain. The reviews included in this book are an attempt to flush out some of these myths, and arm the clinician and general researcher with the empirical facts that can be mustered to substantiate claims about ageing. There are many salient questions: is cognitive change to be expected in an elderly individual? Is this change progressive, relentless and unselective, or is it focal and constrained? Would every person who lived long enough develop Alzheimer’s disease? Do our neurones die as we get old? What happens to the size of the brain and its metabolic activity? How do our hormones change with age? Can anti-oxidants slow or even stop the process of ageing? Are genes important in the ageing brain or is it all in the environment? How much of what we are is due to what we eat? The contributors to this book, each an expert in their field, have addressed some of these questions in a language simple enough for a general reader to understand. The book also deals with some of the most prominent brain disorders of old age - Alzheimer's disease, Parkinson's disease, vascular dementia, and depression. The focus is on the impact of ageing on these disorders. The discussions lay out a broad map for the clinician dealing with neuropsychiatric disorders, and the future researcher of brain ageing. In a field in which the developments are too numerous for any one individual to keep pace with, this book presents up-to-date summaries that can be a useful starting point. The field of brain ageing abounds in tabloid science. This book counters this by providing a strong empirical grounding and considered synthesis of the research.
Internationally eminent scientists illuminate the most important scientific aspects of essential fatty acids (EFAs)-from their biochemistry to their physiological consequences in both health and illness. The distinguished contributors integrate a wide range of topics, including the basic biochemistry of EFAs and lipid metabolism, the role of EFAs in the neuronal membrane, the effects of EFAs and lipids in various diseases, and the effects of normal levels and EFA deficiencies on cognition and behavior. The book's consolidation of our knowledge of the biology and metabolism of the EFAs lays the groundwork for dramatic advances in our understanding of these ubiquitous biochemicals and their role in health and illness.
Handbook of Lipids in Human Function: Fatty Acids presents current research relating to health issues whose impact may be modified by adopting personalized diets and lifestyle interventions of the consumption of fatty acids. Addressing cardiovascular and neurological diseases as well as cancer, obesity, inflammatory conditions, and lung disease, the authors correlate lipid sources with specific conditions, providing important insights into preventative as well as response-based actions designed to positively impact health outcomes. The material is presented in 29 chapters and brings together the research and work of an international team of experts. designed to bridge the gap between traditional approaches to dietary interventions and leading edge integrated health strategies, Handbook of Lipids in Human Function: Fatty Acids is a valuable resource for researchers and clinicians.
