Molecular Mechanisms Of Neural Development And Insights Into Disease

Neural Development and Disease, Volume 142 in the Current Topics in Developmental Biology series highlights new advances in the field, with this new volume presenting interesting chapters by one or more members of an international board of authors. Sections in this new release cover The role of primary cilia in neural development and disease, Mechanisms of axon guidance receptor regulation and signaling, Synaptic recognition molecules in development and disease, The regulation of cortical neurogenesis, Axon guidance in the developing spinal cord, The role of astrocytes in synapse formation and maturation, Development of motor circuits, Molecular mechanisms that mediate dendrite morphogenesis, and more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Current Topics in Developmental Biology series

With the unprecedented identification of new mutation mechanisms in neurodegenerative diseases and the emergence of common mechanisms among diseases that were once considered unrelated, neurobiologists are poised for the development of new therapies based on high throughput screenings and a better understanding of the molecular and cellular mechanisms leading to neurodegeneration. In Molecular Mechanisms of Neurodegenerative Diseases, Marie-Francoise Chesselet, MD, PhD, and a panel of leading researchers and neurologists from industry and academia critically review the most recent advances from different yet complementary points of view. Focusing on Alzheimer's, Parkinson's, and CAG triplet repeat diseases, the authors show how studies of cellular and genetically engineered animal models have enhanced our understanding of the molecular mechanisms of neurodegenerative diseases and may lead to the development of new therapeutics. Topics include the role of Ab toxicity, glial cells, and inflammation in Alzheimer's disease; the formation of abnormal protein fragments across several diseases, the impact of dopamine and mitochondrial dysfunction on neurodegeneration; and the potential of genetics to identify the molecular mechanisms of neurodegenerative diseases. Authoritative and insightful, Molecular Mechanisms of Neurodegenerative Diseases synthesizes the novel ideas and concepts now emerging to create a fresh understanding of neurodegenerative disorders, one that promises to lead to powerful new therapies that prevent, delay the onset, slow the progression, or even cure these cruel diseases.

The brain consists of a complex but precisely organized neural network, which provides the structural basis of higher order functions. Such a complex structure originates from a simple pseudostratified neuroepithelium. During the developing mammalian cerebral cortex, a cohort of neural progenitors, located near the ventricle, differentiates into neurons and exhibits multi-step modes of migration toward the pial surface. Tight regulation of neurogenesis and neuronal migration is essential for the determination of the neuron number in adult brains and the proper positioning of excitatory and inhibitory neurons in a specific layer, respectively. In addition, defects in neurogenesis and neuronal migration can cause several neurological disorders, such as microcephaly, periventricular heterotopia and lissencephaly. Recent advances in genetic approaches to study the developing cerebral cortex, as well as the use of a number of novel techniques, particularly in vivo electroporation and time-lapse analyses using explant slice cultures, have significantly increased our understanding of cortical development. These novel techniques have allowed for cell biological analyses of cerebral cortical development in vivo or ex vivo, showing that many cellular events, including endocytosis, cell adhesion, microtubule and actin cytoskeletal regulation, neurotransmitter release, stress response, the consequence of cellular crowding (physical force), dynamics of transcription factors, midbody release and polarity transition are required for neurogenesis and/or neuronal migration. The aim of this research topic is to highlight molecular and cellular mechanisms underlying cerebral cortical development and its related neurological disorders from the cell biological point of views, such as cell division, cell-cycle regulation, cytoskeletal organization, cell adhesion and membrane trafficking. The topic has been organized into three chapters: 1) neurogenesis and cell fate determination, 2) neuronal migration and 3) cortical development-related neurological disorders. We hope that the results and discussions contributed by all authors in this research topic will be broadly useful for further advances in basic research, as well as improvements in the etiology and care of patients suffering from neurological and psychiatric disorders.

This book is aimed at generating an updated reservoir of scientific endeavors undertaken to unravel the complicated yet intriguing topic of neurodegeneration. Scientists from Europe, USA and India who are experts in the field of neurodegenerative diseases have contributed to this book. This book will help readers gain insight into the recent knowledge obtained from Drosophila model, in understanding the molecular mechanisms underlying neurodegenerative disorders and also unravel novel scopes for therapeutic interventions. Different methodologies available to create humanized fly models that faithfully reflects the pathogenicities associated with particular disorders have been described here. It also includes information on the exciting area of neural stem cells. A brief discussion on neurofibrillary tangles, precedes the elaborate description of lessons learnt from Drosophila about Alzheimer's, Parkinson’s, Spinomuscular Atrophy, Huntington’s diseases, RNA expansion disorders and Hereditary Spastic Paraplegia. We have concluded the book with the use of Drosophila for identifying pharmacological therapies for neurodegenerative disorders. The wide range of topics covered here will not only be relevant for beginners who are new to the concept of the extensive utility of Drosophila as a model to study human disorders; but will also be an important contribution to the scientific community, with an insight into the paradigm shift in our understanding of neurodegenerative disorders. Completed with informative tables and communicative illustrations this book will keep the readers glued and intrigued. We have comprehensively anthologized the lessons learnt on neurodegeneration from Drosophila and have thus provided an insight into the multidimensional aspects of pathogenicities of majority of the neurodegenerative disorders.

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."

The last decades have witnessed a radical change in our views on central nervous system damage and repair. This change is not only due to the emergence of new powerful tools for the analysis of the brain and its reactions to insults, but it also reflects a conceptual change in the way we approach these problems. As an illustration to this development, it is instructive to go back to the proceedings of a meeting at the NIH in 1955 edited by William F. Windle, which summarizes the disillusioned and pessimistic view on CNS regeneration prevailing at the time. While this generation of researchers were well aware of the issues at stake, they felt they had reached the end of the road; the approaches they had pursued had got stuck and the tools available could not take them any further. I can very well imagine that the participants, most of them leaders in the field, left that conference feeling they had heard their field being sentenced to death.

Comprehensive, up-to-date and authoritative, this volume covers all the recent advances in understanding the early events of neural development at the molecular and cellular levels. The authors detail the applications of molecular genetic methods to the study of neural induction, neuronal phenotypes and processes, and the formation of specific patterns of connections. They analyze the new information generated through modern techniques for identifying, cloning, deleting and introducing specific genes, for labeling neuronal or glial precursors, and for imaging individual neurons or parts of neurons. Other chapters focus on the increasing use of a variety of model organisms: fruit flies, nematode worms, zebra fish, xenopus frogs, chicks, and mice. The improved conservation of DNA and protein sequences, and the availability of gene and protein databases have made it possible to rapidly identify gene homologues in organisms sometimes separated by hundreds of millions of years of evolution. This volume features several chapters co-authored by investigators one of whom works on vertebrates and the other on invertebrates. They demonstrate clearly that although the nervous systems of a fruit fly and a mouse, for example, are quite different in appearance and organization, many of the same molecular players and cellular processes are involved in their assembly. Molecular and Cellular Approaches to Neural Development will be of great practical interest to researchers, graduate students and post-doctoral fellows in developmental, cell and molecular biology, genetics, and neuroscience.

Cell-Cycle Mechanisms and Neuronal Cell Death examines the role of cell cycle activation in the molecular mechanisms leading to neuronal degeneration. Leading Authors discuss this topic in relation to the major neurological disorders, including Alzheimer’s disease, stroke and epilepsy. This book serves to gain new insights into the molecular determinants of neuronal death and to establish new targets for therapeutic intervention.

As the molecular basis of human disease becomes better characterized, and the implications for understanding the molecular basis of disease becomes realized through improved diagnostics and treatment, Molecular Pathology, Second Edition stands out as the most comprehensive textbook where molecular mechanisms represent the focus. It is uniquely concerned with the molecular basis of major human diseases and disease processes, presented in the context of traditional pathology, with implications for translational molecular medicine. The Second Edition of Molecular Pathology has been thoroughly updated to reflect seven years of exponential changes in the fields of genetics, molecular, and cell biology which molecular pathology translates in the practice of molecular medicine. The textbook is intended to serve as a multi-use textbook that would be appropriate as a classroom teaching tool for biomedical graduate students, medical students, allied health students, and others (such as advanced undergraduates). Further, this textbook will be valuable for pathology residents and other postdoctoral fellows that desire to advance their understanding of molecular mechanisms of disease beyond what they learned in medical/graduate school. In addition, this textbook is useful as a reference book for practicing basic scientists and physician scientists that perform disease-related basic science and translational research, who require a ready information resource on the molecular basis of various human diseases and disease states. Explores the principles and practice of molecular pathology: molecular pathogenesis, molecular mechanisms of disease, and how the molecular pathogenesis of disease parallels the evolution of the disease Explains the practice of “molecular medicine and the translational aspects of molecular pathology Teaches from the perspective of “integrative systems biology Enhanced digital version included with purchase