Molecular mechanisms in visual transduction is presently one of the most intensely studied areas in the field of signal transduction research in biological cells. Because the sense of vision plays a primary role in animal biology, and thus has been subject to long evolutionary development, the molecular and cellular mechanisms underlying vision have a high degree of sensitivity and versatility. The aims of visual transduction research are first
to determine which molecules participate, and then to understand how they act in concert to produce the exquisite electrical responses of the photoreceptor cells.
Since the 1940s 1] we have known that rod vision begins with the capture of a quantum of energy, a photon, by a visual pigment molecule, rhodopsin. As the function of photon absorption is to convert the visual pigment molecule into a G-protein activating state, the structural details of the visual pigments must be
explained from the perspective of their role in activating their specific G-proteins. Thus, Chapters 1-3 of this Handbook extensively cover the physico-chemical molecular characteristics of the vertebrate rhodopsins. Following photoconversion and G-protein activation, the phototransduction cascade leads to modifications of the population of closed and open ion channels in the photoreceptor plasma membrane, and thereby to the electrical response. The nature of the channels of vertebrate photoreceptors is examined in Chapter 4, and Chapter 5 integrates the present body of knowledge of the activation steps in the cascade into a quantitative framework. Once the phototransduction cascade is activated, it must be subsequently silenced. The various molecular mechanisms participating in inactivation are
treated in Chapters 1-4 and especially Chapter 5. Molecular biology is now an indispensable tool in signal transduction studies. Numerous vertebrate (Chapter 6) and invertebrate (Chapter 7) visual pigments have been characterized and cloned. The genetics and evolutionary aspects of this great subfamily of G-protein activating receptors are intriguing as they present a natural probe for the intimate relationship between structure and function of the visual pigments. Understanding the spectral characteristics from the molecular composition can be expected to

In the last decade, we have witnessed a striking maturation of our understanding of how neurons in the spinal cord control muscular activity and movement. Paradoxically, a host of new findings have revealed an unexpected versatility in the behavior of these well-studied neural elements and circuits. In this volume, the world's leading experts review the current state of our knowledge of motor control, outline their latest results and developments, and delineate the seminal unresolved questions in this vibrant field of research. The volume begins with a commentary and overview of our current understanding of the peripheral and spinal basis of motor control. The remainder of the volume is divided into seven sections, each focused on a different problem. The first chapter in each section provides some historical review and presages the experimental findings and hypotheses that are discussed in subsequent chapters.
Topics include the biomechanics of neuromuscular systems, the properties of motoneurons and the muscle units they control, spinal interneurons, pattern generating circuits, locomotion, descending control of spinal circuits, comparative physiology of motor systems, and motor systems neurophysiology studied in man. The book serves as a unique reference volume and should be essential reading for anyone interested in motor systems. Moreover, the volume's comprehensive coverage of a wide range of topics make it an effective textbook for graduate level courses in motor control neurobiology, kinesiology, physical therapy, and rehabilitation medicine.

Biology is often viewed today as a bipartisan field, with molecular level genetics guiding us into the future and natural history (including ecology, evolution, and conservation biology, ) chaining us to a descriptive scientific past. In Darwinian Detectives, Norman Johnson bridges this divide, revealing how the tried and true tools of natural history make sense of the newest genomic discoveries. Molecular scientists exploring newly sequenced genomes have stumbled upon quite a few surprises, including that only one to ten percent of the genetic material of animals actually codes for genes. What does the remaining 90-99% of the genome do? Why do some organisms have a much lower genome size than their close relatives? What were the genetic changes that were associated with us becoming human? As molecular biologists uncover these and other new mysteries, evolutionary geneticists are searching for answers to such questions. Norman Johnson captures the excitement of the hunt for our own genetic history. Through lively anecdotes, he explores how researchers detect natural selection acting on genes and what this genetic information tells us about human origins.

Insect Immunity, Volume 52 provides readers with the latest interdisciplinary reviews on the topic. It is an essential reference source for invertebrate physiologists, neurobiologists, entomologists, zoologists and insect chemists, providing invaluable chapters on Insect Antimicrobial Defenses: A Brief History, Recent Findings, Biases, and a Way Forward in Evolutionary Studies, Phagocytosis in Insect Immunity, The Melanization Response in Insect Immunity, Microbiota, Gut Physiology, and Insect Immunity, Intestinal Stem Cells: A Decade of Intensive Research in Drosophila and the Road Ahead, and Insect Symbiosis and Immunity: The Bean Bug-Burkholderia Interaction as a Case Study, along with other related topics.

Neurotoxicology: Approaches and Methods provides a unique and comprehensive presentation of the current concepts and state-of-the-art methods for the assessment of neurotoxicity. The book analyzes various techniques available and discusses their strengths and weaknesses. This volume will serve as an excellent desk companion and laboratory guide for all investigators, researchers, clinicians, and students interested in neurotoxicology. The internationally knowngroup of editors divide the book into seven sections: "Neuromorphological and Neuropathological Approaches; Neurophysiological Approaches; Neurobehavioral Toxicology; Neurochemical and Biomolecular Approaches; In-Vitro Models; Clinical Neurotoxicology; and Risk Assessment of Neurotoxicity." Each section yields the most up-to-date information by experts in their fields. Meticulously organized and edited, Neurotoxicology: Approaches and Methods is the most authoritative and well-planned neurotoxicology book on the market.
Key Features
* Discusses neurobehavioral testing methods for assessment of neural dysfunctions
* Explains state-of-the-art diagnostic methods, such as clinico-neuropsychological and neurophysiological methods, for patients confronted by neurotoxic problems
* Discusses "In Vitro" methods, including aggregating brain cell methods, organotypic cultures, and the use of human neuronal cell lines for the assessment of neurotoxicity
* Presents step-by-step procedures for many methods
* Provides state-of-the-art neuromorphological and biomolecular methods and approaches for neurotoxicity investigation

Historically the field of endocrine research has always been at the forefront of scientific endeavors. The investigators of these important breakthroughs in research have been rewarded by numerous Nobel awards. In the field of diabetes alone, Nobel prizes have been awarded to researchers who discovered insulin, characterized the protein and invented radioimmunoassays using insulin as a paradigm. Not surprisingly, biomedical researchers have always been attracted by the endocrine system and other similar systems of intercellular communication.
Over the past two decades, endocrine research has developed rapidly and adapted modern molecular and cellular biology techniques for its specific use. These changes have allowed researchers in the field to maintain their edge. Thus, endocrine disease-related genes have been characterized and mutations in these genes have helped explain common and
less common endocrine disorders. Our understanding of the regulation of gene expression has been greatly enhanced by molecular techniques.
In an attempt to bring investigators up to date with the recent advances in this exploding field we have decided to publish a series entitled Advances in Molecular and Cellular Endocrinology. Internationally famous investigators have agreed to participate and their contributions are appreciated.
Volume 1 has focused on aspects of the hypothalamic-pituitary axis including GnRH and GH gene regulation, molecular aspects of insulin, insulin-like growth factors and glucagon. In addition, reviews on the recently cloned calcium receptor and steroid receptor interactions with DNA are presented.

This book reviews the growing literature that is consistent with the hypothesis that hormones can regulate auditory physiology and perception across a broad range of animal taxa, including humans. Understanding how hormones modulate auditory function has far reaching implications for advancing our knowledge in the basic biomedical sciences and in understanding the evolution of acoustic communication systems. A fundamental goal of neuroscience is to understand how hormones modulate neural circuits and behavior. For example, steroids such as estrogens and androgens are well-known regulators of vocal motor behaviors used during social acoustic communication. Recent studies have shown that these same hormones can also greatly influence the reception of social acoustic signals, leading to the more efficient exchange of acoustic information.

Proteomics, like other post-genomics tools, has been growing at a rapid pace and has important applications in numerous fields of science. While its use in animal and veterinary sciences is still limited, there have been considerable advances in this field in recent years, in areas as diverse as physiology, nutrition and food of animal origin processing. This is mainly as a consequence of a wider availability and better understanding of proteomics methodologies by animal and veterinary researchers. This book provides a comprehensive, state-of-the-art account of the status of farm-animal proteomics research, focusing on the principles behind proteomics methodologies and its specific applications and offering clear example.

How does dietary restriction affect the physiological and biochemical state of laboratory animals? How will the present conclusions affect further research? What are the implications for human health and safety assessment? These are the main questions asked in this book by leading international researchers. After a first look at feeding regimens and diets of laboratory animals, the book elaborates on a variety of age-associated toxicological and pathological endpoints including tumor development. The following sections detail the underlying mechanisms which may induce the broad spectrum of physiological and biochemical changes. This summary of current multidisciplinary research will enhance understanding of the practical applications and implications of dietary restriction.

In this book, leading figures in the field of Developmental Origins of Health and Disease provide up-to-date information from human clinical trials, cohorts, and animal physiology experiments to reveal the interdependence between parental obesity and health of the offspring. Obesity of the mother and father produces obesity in their offspring, so we are caught up in an intergenerational cycle, which means that even our children's future health is in peril. This book gives a timely and much-needed synthesis of the mechanisms, potential targets of future interventions, and the challenges that need to be overcome in order to break the intergenerational cycle of obesity. This has profound implications for the way in which scientific, clinical and health policy activities are to be directed in order to combat the so-called epidemic of obesity, as well as diabetes, cancer and cardiovascular disease. The book will be of interest to students, clinicians, researchers and health policy makers who are either seeking an introduction to the area of Developmental Origins of Health and Disease or have a specific interest in the pathogenesis of obesity.

Insect Hearing provides a broadly based view of the functions, mechanisms, and evolution of hearing in insects. With a single exception, the chapters focus on problems of hearing and their solutions, rather than being focused on particular taxa. The exception, hearing in Drosophila, is justified because, due to its ever growing toolbox of genetic and optical techniques, Drosophila is rapidly becoming one of the most important model systems in neurobiology, including the neurobiology of hearing. Auditory systems, whether insectan or vertebrate, must perform a number of basic tasks: capturing mechanical stimuli and transducing these into neural activity, representing the timing and frequency of sound signals, distinguishing between behaviorally relevant signals and other sounds and localizing sound sources. Studying how these are accomplished in insects offers a valuable comparative view that helps to reveal general principles of auditory function.

Blood coagulation and fibrinolysis has been traditionally classed as a part of hematology and the complement system as a part of immunology. An analysis of these two systems at a molecular level, however, has revealed some intriguing evolutionary relationships among some of the macromolecules involved. Evidently, there are similarities in the cascade of reactions that characterize the processes. It is therefore highly suitable that these topics are presented together in one volume. This book presents a thorough explanation and analysis of our current understanding of the proteins and enzymes involved in each of the three processes, and includes a section devoted to special topics of relevance, such as the kinin system, glycosylation, signal peptides, and the serpin family.

This comprehensive volume on the blood-gas barrier (BGB) among vertebrates covers its structure and composition along with aspects of evolution, bioengineering, and morphometry. The book also discusses the embryological development of the BGB, including chronology of events and molecular control in vertebrates; modulation of the barrier function, including cyclic stretch-induced increases in alveolar epithelial permeability; mechanisms of lung vascular/epithelial permeability; transport mechanisms of the BGB, including sodium transport channels; factors affecting trans-barrier traffic of fluids, such as chronic elevation of pulmonary microvascular pressure; stress failure; regulation and repair in acute lung injury; chronic lung disease; and lung transportation. Ten authoritative chapters approach the blood-gas barrier holistically, from basic structure and development to pathology and treatment. Properties of the BGB are discussed in the earlier chapters, followed by prenatal and post-natal development and mechanisms of the healthy BGB. The latter half of the book delves into the pathology of the BGB, analyzing common afflictions and exploring options for treatment, including its alterations during lung transplantation. Intuitively structured and comprehensive, The Vertebrate Blood-Gas Barrier in Health and Disease is ideal for researchers and clinicians interested in pneumology and angiology.

This authoritative volume explores advances in the techniques used to measure percutaneous penetration of drugs and chemicals to assess bioavailability and bioequivalence and discusses how they have been used in clinical and scientific investigations. Seven comprehensive sections examine topics including in vitro drug release, topical drugs products, clinical studies, and guidelines and workshop reports, among others. The book also describes how targeted transdermal drug delivery and more sophisticated mathematical modelling can aid in understanding the bioavailability of transdermal drugs. The first edition of this book was an important reference guide for researchers working to define the effectiveness and safety of drugs and chemicals that penetrated the skin. This second edition contains cutting-edge advances in the field and is a key resource to those seeking to define the bioavailability and bioequivalence of percutaneously active compounds to improve scientific and clinical investigation and regulation.

This volume of "Advances in Insect Physiology" contains comprehensive interdisciplinary reviews on basic and practical aspects relevant to Insect Midgut and Insecticidal Proteins.
Contains important, comprehensive and in-depth reviewsAn essential reference source for invertebrate physiologists and neurobiologists, entomologists, zoologists, and insect biochemistsFirst published in 1963, this serial is ranked second in the highly competitive ISI category of Entomology

This book addresses how skeletons can inform us about behavior by describing skeletal lesions in the Gombe chimpanzees, relating them to known life histories whenever possible, and analyzing demographic patterns in the sample. This is of particular interest to both primatologists and skeletal analysts who have benefited from published data on a smaller, earlier skeletal sample from Gombe. The Gombe skeletal collection is the largest collection of wild chimpanzees with known life histories in existence, and this work significantly expands the skeletal sample from this long-term research site (49 chimpanzees). The book explores topics of general interest to skeletal analysts such as demographic patterns, which injuries leave signs on the skeleton, and rates of healing, and discusses both qualitative and quantitative analysis of the patterning of lesions. The book presents the data in a narrative style similar to that employed in Dr. Goodall's seminal work The Chimpanzees of Gombe. Readers already familiar with the Gombe chimpanzees are likely to appreciate summaries of life events correlated to observable skeletal features. The book is especially relevant at this time to remind primate conservationists of the importance of the isolated chimpanzee population at Gombe National Park as well as the availability of the skeletons for study, both within the park itself as well as at the University of Minnesota.

This new volume of "Current Topics in Developmental Biology" covers recent progresses in our understanding of animal metamorphosis. Over a dozen of leading experts reviews studies ranging from morphological, molecular to genetic analyses of metamorphosis in a broad spectrum of animals, including insects, fish.Topicsinclude molecular evolution in metamorphosis, the synthesis and function of hormones in regulating metamorphic timing and rate, regulation and function of nuclear hormone receptors, neuroendocrine control of metamorphosis, tissue specific metamorphic events such as autophagy and stem cell development, and applications of genome-wide analysis technologies for studying metamorphosis.
First comprehensive review of the metamorphosis in diverse animal species by leading experts in the fieldCovers a broad range of subjects: from morphological changes, molecular and genetic studies, to cutting-edge technologies for metamorphic studies; from systematic changes to tissue specific events, such as autophagy and stem cell development, which are areas of enormous interest in contemporary biomedical researchServes as a reference book for undergraduate and graduate students in fields across biology and biomedicine"

This book provides a comprehensive look at nonhuman primate social inequalities as models for health differences associated with socioeconomic status in humans. The benefit of the socially-housed monkey model is that it provides the complexity of hierarchical structure and rank affiliation, i.e. both negative and positive aspects of social status. At the same time, nonhuman primates are more amenable to controlled experiments and more invasive studies that can be used in human beings to examine the effects of low status on brain development, neuroendocrine function, immunity, and eating behavior. Because all of these biological and behavioral substrates form the underpinnings of human illness, and are likely shared among primates, the nonhuman primate model can significantly advance our understanding of the best interventions in humans.

This latest volume in this series contains articles on Arachnid Physiology and Behaviour.The papers in this special issue give rise to key themes for the future.
The latest volume in this series contains articles on arachnid physiology and behavior. The papers in this special issue give rise to key themes for the future.

"Advances in Insect Physiology" is committed to publishing volumes containing comprehensive and in-depth reviews on all aspects of insect physiology. First published in 1963, these volumes are an essential reference source for invertebrate physiologists, insect neurobiologists, entomologists, zoologists and insect biochemists. This volume is themed on small RNAs and RNAi in insects.
Contains" "comprehensive and in-depth reviews.
Essential reference source for invertebrate physiologists, insect neurobiologists, entomologists, zoologists and insect biochemists.
This volume is themed on small RNAs and RNAi in insects.

The second part of an updated edition of the classic "Methods in Cell Biology, "Volume 48, this book emphasizes diverse methods and technologies needed to investigate "C. elegans," both as an integrated organism and as a model system for research inquiries in cell, developmental, and molecular biology, as well as in genetics and pharmacology. By directing its audience to tried-and-true and cutting-edge recipes for research, this comprehensive collection is intended to guide investigators of "C. elegans" for years to come.
Diverse, up-to-date techniques covered will be useful to the broadening community of "C. elegans" researchers for years to comeChapters written by leaders in the fieldTried and true methods deliver busy researchers a one-stop compendium of essential protocols

With over 43,000 species, spiders are the largest predacious arthropod group. They have developed key characteristics such as multi-purpose silk types, venoms consisting of hundreds of components, locomotion driven by muscles and hydraulic pressure, a highly evolved key-lock mechanism between the complex genital structures, and many more unique features. After 300 million years of evolutionary refinement, spiders are present in all land habitats and represent one of the most successful groups of terrestrial organisms. Ecophysiology combines functional and evolutionary aspects of morphology, physiology, biochemistry and molecular biology with ecology. Cutting-edge science in spiders focuses on the circulatory and respiratory system, locomotion and dispersal abilities, the immune system, endosymbionts and pathogens, chemical communication, gland secretions, venom components, silk structure, structure and perception of colours as well as nutritional requirements. Spiders are valuable indicator species in agroecosystems and for conservation biology. Modern transfer and application technologies research spiders and their products with respect to their value for biomimetics, material sciences, and the agrochemical and pharmaceutical industries.

"Homeostasis and Toxicology of Non-Essential Metals" synthesizes the explosion of new information on the molecular, cellular, and organismal handling of metals in fish in the past 15 years. These elements are no longer viewed by fish physiologists as "heavy metals" that kill fish by suffocation, but rather as interesting moieties that enter and leave fish by specific pathways, which are subject to physiological regulation. The metals featured in this volume are those about which there has been most public and scientific concern, and therefore are those most widely studied by fish researchers. Metals such as Ag, Al, Cd, Pb, Hg, As, Sr, and U have no known nutritive function in fish at present, but are toxic at fairly low levels.

The companion volume, "Homeostasis and Toxicology of Essential Metals, " Volume 31A, covers metals that are either proven to be or are strongly suspected to be essential in trace amounts, yet are toxic in higher doses. Metals such as Cu, Zn, Fe, Ni, Co, Se, Mo and Cr. In addition, three chapters in Volumes 31A and 31B on Basic Principles (Chapter 1, 31A), Field Studies and Ecological Integration (Chapter 9, 31A) and Modeling the Physiology and Toxicology of Metals (Chapter 9, 31B) act as integrative summaries and make these two volumes a vital set for readers.
All major essential metals of interest are covered in metal-specific chaptersEach metal-specific chapter is written by fish physiologists/toxicologists who are recognized authorities for that metalA common format is featured throughout this two volume edition

"Homeostasis and Toxicology of Essential Metals" synthesizes the explosion of new information on the molecular, cellular, and organismal handling of metals in fish in the past 15 years. These elements are no longer viewed by fish physiologists as "heavy metals" that kill fish by suffocation, but rather as interesting moieties that enter and leave fish by specific pathways, which are subject to physiological regulation. The metals featured in this volume are those about which there has been most public and scientific concern, and therefore are those most widely studied by fish researchers. Metals such as Cu, Zn, Fe, Ni, Co, Se, Mo and Cr are either proven to be or are strongly suspected to be essential in trace amounts, yet are toxic in higher doses.

The companion volume, "Homeostasis and Toxicology of Non-Essential Metals, " Volume 31B, covers metals that have no known nutritive function in fish at present, but which are toxic at fairly low levels, such as Ag, Al, Cd, Pb, Hg, As, Sr, and U. In addition, three chapters in Volumes 31A and 31B on Basic Principles (Chapter 1, 31A), Field Studies and Ecological Integration (Chapter 9, 31A) and Modeling the Physiology and Toxicology of Metals (Chapter 9, 31B) act as integrative summaries and make these two volumes a vital set for readers.
All major essential metals of interest are covered in metal-specific chaptersEach metal-specific chapter is written by fish physiologists/toxicologists who are recognized authorities for that metalA common format is featured throughout this two volume edition

This book encapsulates over three decades of the author's work on comparative functional respiratory morphology. It provides insights into the mechanism(s) by which respiratory means and processes originated and advanced to their modern states. Pertinent cross-disciplinary details and facts have been integrated and reexamined in order to arrive at more robust answers to questions regarding the basis of the functional designs of gas exchangers. The utilization of oxygen for energy production is an ancient process, the development and progression of which were underpinned by dynamic events in the biological, physical, and chemical worlds. Many books that have broached the subject of comparative functional respiratory biology have only described the form and function of the end-product, ' the gas exchanger; they have scarcely delved into the factors and the conditions that motivated and steered the development from primeval to modern respiratory means and processes. This book addresses and answers broad questions concerning the critical synthesis of multidisciplinary data, and clarifies previously cryptic aspects of comparative respiratory biology.