Regulation Of Differentiation In Mammalian Nerve Cells

Several model systems have been used to understand the cellular and molecular mechanisms of differentiation of mammalian nerve cells. Each model system has unique advantages and disadvantages and is suited for the study of only certain aspects of differentiation. In this book, the techniques of these models and the usefulness and limita tion of each model system are discussed. An awareness of the use and misuse of each model system is important for a rational interpretation of data and for a reasonable comparison of data obtained from different model systems. With the use of clonal lines of neuronal cells and hybrid neural cells (neural cells x nonneural cells), many new concepts have emerged con cerning the regulation of differentiated functions, the relationship between the expressions of individual differentiated functions, and the relationship between differentiation and malignancy. Some of these concepts have already proved to be relevant to regulation of differentiation in vivo. These new emerging concepts are discussed extensively in this book. Many new agents (physiological and nonphysiological) which induce or increase the expression of one or more differentiated functions have been identified. These agents will be useful biological tools for further studies of the regulation of differentiation in mamma lian nerve cells. This book describes the role of each agent in d- vii viii PREFACE ferentiation of nerve cells by focusing on different model systems and provides a rational basis for selecting the particular differentiating agents for specific problems of differentiation processes.

The brain ... There is no other part of the human anatomy that is so intriguing. How does it develop and function and why does it sometimes, tragically, degenerate? The answers are complex. In Discovering the Brain, science writer Sandra Ackerman cuts through the complexity to bring this vital topic to the public. The 1990s were declared the "Decade of the Brain" by former President Bush, and the neuroscience community responded with a host of new investigations and conferences. Discovering the Brain is based on the Institute of Medicine conference, Decade of the Brain: Frontiers in Neuroscience and Brain Research. Discovering the Brain is a "field guide" to the brainâ€"an easy-to-read discussion of the brain's physical structure and where functions such as language and music appreciation lie. Ackerman examines: How electrical and chemical signals are conveyed in the brain. The mechanisms by which we see, hear, think, and pay attentionâ€"and how a "gut feeling" actually originates in the brain. Learning and memory retention, including parallels to computer memory and what they might tell us about our own mental capacity. Development of the brain throughout the life span, with a look at the aging brain. Ackerman provides an enlightening chapter on the connection between the brain's physical condition and various mental disorders and notes what progress can realistically be made toward the prevention and treatment of stroke and other ailments. Finally, she explores the potential for major advances during the "Decade of the Brain," with a look at medical imaging techniquesâ€"what various technologies can and cannot tell usâ€"and how the public and private sectors can contribute to continued advances in neuroscience. This highly readable volume will provide the public and policymakersâ€"and many scientists as wellâ€"with a helpful guide to understanding the many discoveries that are sure to be announced throughout the "Decade of the Brain."

Recent scientific breakthroughs, celebrity patient advocates, and conflicting religious beliefs have come together to bring the state of stem cell researchâ€"specifically embryonic stem cell researchâ€"into the political crosshairs. President Bush's watershed policy statement allows federal funding for embryonic stem cell research but only on a limited number of stem cell lines. Millions of Americans could be affected by the continuing political debate among policymakers and the public. Stem Cells and the Future of Regenerative Medicine provides a deeper exploration of the biological, ethical, and funding questions prompted by the therapeutic potential of undifferentiated human cells. In terms accessible to lay readers, the book summarizes what we know about adult and embryonic stem cells and discusses how to go about the transition from mouse studies to research that has therapeutic implications for people. Perhaps most important, Stem Cells and the Future of Regenerative Medicine also provides an overview of the moral and ethical problems that arise from the use of embryonic stem cells. This timely book compares the impact of public and private research funding and discusses approaches to appropriate research oversight. Based on the insights of leading scientists, ethicists, and other authorities, the book offers authoritative recommendations regarding the use of existing stem cell lines versus new lines in research, the important role of the federal government in this field of research, and other fundamental issues.

This 1999 edition of The Neural Crest contains comprehensive information about the neural crest, a structure unique to the vertebrate embryo, which has only a transient existence in early embryonic life. The ontogeny of the neural crest embodies the most important issues in developmental biology, as the neural crest is considered to have played a crucial role in evolution of the vertebrate phylum. Data that analyse neural crest ontogeny in murine and zebrafish embryos have been included in this revision. This revised edition also takes advantage of recent advances in our understanding of markers of neural crest cell subpopulations, and a full chapter is now devoted to cell lineage analysis. The major research breakthrough since the first edition has been the introduction of molecular biology to neural crest research, enabling an elucidation of many molecular mechanisms of neural crest development. This book is essential reading for students and researchers in developmental biology, cell biology, and neuroscience.

Neurobiology of Brain Disorders is the first book directed primarily at basic scientists to offer a comprehensive overview of neurological and neuropsychiatric disease. This book links basic, translational, and clinical research, covering the genetic, developmental, molecular, and cellular mechanisms underlying all major categories of brain disorders. It offers students, postdoctoral fellows, and researchers in the diverse fields of neuroscience, neurobiology, neurology, and psychiatry the tools they need to obtain a basic background in the major neurological and psychiatric diseases, and to discern connections between basic research and these relevant clinical conditions. This book addresses developmental, autoimmune, central, and peripheral neurodegeneration; infectious diseases; and diseases of higher function. The final chapters deal with broader issues, including some of the ethical concerns raised by neuroscience and a discussion of health disparities. Included in each chapter is coverage of the clinical condition, diagnosis, treatment, underlying mechanisms, relevant basic and translational research, and key unanswered questions. Written and edited by a diverse team of international experts, Neurobiology of Brain Disorders is essential reading for anyone wishing to explore the basic science underlying neurological and neuropsychiatric diseases. Links basic, translational, and clinical research on disorders of the nervous system, creating a format for study that will accelerate disease prevention and treatment Covers a vast array of neurological disorders, including ADHD, Down syndrome, autism, muscular dystrophy, diabetes, TBI, Parkinson, Huntington, Alzheimer, OCD, PTSD, schizophrenia, depression, and pain Illustrated in full color Each chapter provides in-text summary points, special feature boxes, and research questions Provides an up-to-date synthesis of primary source material

This volume covers all aspects of embryonic stem cell differentiation, including mouse embryonic stem cells, mouse embryonic germ cells, monkey and human embryonic stem cells, and gene discovery. * Early commitment steps and generation of chimeric mice * Differentiation to mesoderm derivatives * Gene discovery by manipulation of mouse embryonic stem cells