Mediating Alzheimer's


Book Description

An exploration of the representational culture of Alzheimer's disease and how media technologies shape our ideas of cognition and aging With no known cause or cure despite a century of research, Alzheimer's disease is a true medical mystery. In Mediating Alzheimer's, Scott Selberg examines the nature of this enduring national health crisis by looking at the disease's relationship to media and representation. He shows how collective investments in different kinds of media have historically shaped how we understand, treat, and live with this disease. Selberg demonstrates how the cognitive abilities that Alzheimer's threatens--memory, for example--are integrated into the operations of representational technologies, from Polaroid photographs to Post-its to digital artificial intelligence. Focusing on a wide variety of media technologies, such as neuroimaging, art therapy, virtual reality, and social media, he shows how these cognitively oriented media ultimately help define personhood for people with Alzheimer's. Media have changed the practices of successful aging in the United States, and Selberg takes us deep into how technologies like digital brain-training and online care networks shape ideas of cognition and healthy aging. Packed with startlingly fresh insights, Mediating Alzheimer's contributes to debates around bioethics, the labor of caregiving, and a national economy increasingly invested in communication and digital media. Probing the very technologies that promise to save and understand our brains, it gives us new ways of understanding Alzheimer's disease and aging in America.




Mediating Alzheimer's


Book Description

An exploration of the representational culture of Alzheimer’s disease and how media technologies shape our ideas of cognition and aging With no known cause or cure despite a century of research, Alzheimer’s disease is a true medical mystery. In Mediating Alzheimer’s, Scott Selberg examines the nature of this enduring national health crisis by looking at the disease’s relationship to media and representation. He shows how collective investments in different kinds of media have historically shaped how we understand, treat, and live with this disease. Selberg demonstrates how the cognitive abilities that Alzheimer’s threatens—memory, for example—are integrated into the operations of representational technologies, from Polaroid photographs to Post-its to digital artificial intelligence. Focusing on a wide variety of media technologies, such as neuroimaging, art therapy, virtual reality, and social media, he shows how these cognitively oriented media ultimately help define personhood for people with Alzheimer’s. Media have changed the practices of successful aging in the United States, and Selberg takes us deep into how technologies like digital brain-training and online care networks shape ideas of cognition and healthy aging. Packed with startlingly fresh insights, Mediating Alzheimer’s contributes to debates around bioethics, the labor of caregiving, and a national economy increasingly invested in communication and digital media. Probing the very technologies that promise to save and understand our brains, it gives us new ways of understanding Alzheimer’s disease and aging in America.




Apolipoprotein E and Alzheimer’s Disease


Book Description

There is now considerable genetic evidence that the type 4 allele of the apolipoprotein E gene is a major susceptibility factor associated with late-onset Alzheimer's disease, the common form of the disease defined as starting after sixty years of age. The role of apolipoprotein E in normal brain metabolism and in the pathogenesis of Alzheimer's disease are new and exciting avenues of research. This book, written by the most outstanding scientists in this new filed, is the first presentation of results concerning the implications of apolipoprotein E on the genetics, cell biology, neuropathology, biochemistry, and therapeutic management of Alzheimer's disease.




Evolution of Translational Omics


Book Description

Technologies collectively called omics enable simultaneous measurement of an enormous number of biomolecules; for example, genomics investigates thousands of DNA sequences, and proteomics examines large numbers of proteins. Scientists are using these technologies to develop innovative tests to detect disease and to predict a patient's likelihood of responding to specific drugs. Following a recent case involving premature use of omics-based tests in cancer clinical trials at Duke University, the NCI requested that the IOM establish a committee to recommend ways to strengthen omics-based test development and evaluation. This report identifies best practices to enhance development, evaluation, and translation of omics-based tests while simultaneously reinforcing steps to ensure that these tests are appropriately assessed for scientific validity before they are used to guide patient treatment in clinical trials.




Brain and Memory


Book Description

We are approaching the end of the first century of attempts to discover how the brain enables us to acquire, retain, and use information based on experience. The past several decades especially have witnessed an ever accelerating pace of research. This increase is due in large part to the development of new techniques for the analysis of brain and behavior. But, to a greater extent, these advances have been fueled by some seminal findings and the accumulation of knowledge based on systematic inquiry in many laboratories around the world. This important volume, authored by internationally renowned leaders in the field, is a progress report on this burgeoning work. What processes underlie the formation of new memories? What determines their strength? Where are the changes underlying memory located? In judging recent progress, this book looks at what we have learned about each of these questions. Furthermore, the contributors look at how these questions are rephrased and refined by new findings, hypotheses, and theories. Topics include: emotion and memory, aging and memory, plasticity of the cerebral cortex, and synaptic connectivity and memory. This book will be welcomed by neuroscientists, cognitive psychologists, and cognitive scientists.




Mediation Analysis in Understanding Mechanism of Alzheimer's Disease Risk


Book Description

In Chapter 3, we investigate the role of CMBs further using the newly developed four-way decomposition approach. We found that when comparing e4 heterozygotes to e4 non-carriers, the e4 effect on memory was independent of CMBs. By contrast, when comparing e4 homozygotes to e4 heterozygotes, the e4 effect on memory was attributable to interaction between the effects of e4 alleles and CMBs, perhaps suggesting a greater vascular contribution for these individuals. Similar analyses in other population-based studies will be needed to confirm these findings and further elucidate the contributions of CMBs and CVD to the e4 effect on cognition.




Magnesium in the Central Nervous System


Book Description

The brain is the most complex organ in our body. Indeed, it is perhaps the most complex structure we have ever encountered in nature. Both structurally and functionally, there are many peculiarities that differentiate the brain from all other organs. The brain is our connection to the world around us and by governing nervous system and higher function, any disturbance induces severe neurological and psychiatric disorders that can have a devastating effect on quality of life. Our understanding of the physiology and biochemistry of the brain has improved dramatically in the last two decades. In particular, the critical role of cations, including magnesium, has become evident, even if incompletely understood at a mechanistic level. The exact role and regulation of magnesium, in particular, remains elusive, largely because intracellular levels are so difficult to routinely quantify. Nonetheless, the importance of magnesium to normal central nervous system activity is self-evident given the complicated homeostatic mechanisms that maintain the concentration of this cation within strict limits essential for normal physiology and metabolism. There is also considerable accumulating evidence to suggest alterations to some brain functions in both normal and pathological conditions may be linked to alterations in local magnesium concentration. This book, containing chapters written by some of the foremost experts in the field of magnesium research, brings together the latest in experimental and clinical magnesium research as it relates to the central nervous system. It offers a complete and updated view of magnesiums involvement in central nervous system function and in so doing, brings together two main pillars of contemporary neuroscience research, namely providing an explanation for the molecular mechanisms involved in brain function, and emphasizing the connections between the molecular changes and behavior. It is the untiring efforts of those magnesium researchers who have dedicated their lives to unraveling the mysteries of magnesiums role in biological systems that has inspired the collation of this volume of work.







Ischemia-Reperfusion Pathways in Alzheimer's Disease


Book Description

This book is a study of the neurobiology of Alzheimer's disease. The authors critically review the established and accepted culprit in Alzheimer's disease, the amyloid, the main molecular factor of neurodegeneration in this disease. This book provides a synopsis of current information about ischemic cellular and molecular mediators involved in Alzheimer's neuropathology as well as interactions between these mediators that influence pathology. Current knowledge on the relation between ischemia-reperfusion factors and Alzhemier's-type demential are reviewed as well as the linking of B-amyloid deposition to neuronal damage and clinical disease.