The mechanism of information transfer between cells is the subject of Introduction to Signal Transduction. Until recently various aspects of signaling by hormones were studied (and taught) under the subject of endocrinology, and signaling by neurotransmitters was the subject of neurochemistry. With growing awareness of the many similarities between hormonal and neurotransmitter signalling, recent years have witnessed the emergence of Signal Transduction as an independent discipline covering all aspects of information transfer between cells irrespective of the nature and source of the signals. This book is designed for senior undergraduate/graduate-level students interested in a basic understanding of the major participants in the cellular Signal Transduction pathways. The book covers the major topics in Signal Transduction: receptors, which recognize the signals at the cell surface; G-proteins, which transduce the signals; and adenylate cyclases, guanlate cyclases, and phospholipases, which generate second messengers. Chapters also focus on ion channels, phosphodiesterases, protein kinases, phosphoprotein phosphatases and nitric oxide, which participate in the cellular response to signals; the health consequences of defects in Signal Transduction proteins; and the central role Signal Transduction plays in drug abuse. The book is suitable for an introductory course in Signal Transduction as well as for self-study and review. It is recommended for biology and medical students, as well as for interdisciplinary science majors and pharmaceutical researchers.

Most of the literature dealing with the origins of modern humans concentrates on the European sequence, where the Levant is referred to in passing as being problematic because it does not fit with the sequence of events documented in Europe. This is the first book that attempts to examine the issues specifically from the Levant, viewing it as central rather than peripheral to the problem. It also discusses in some depth the ramifications of possible interactions between the different hominids in the region.

Rather than viewing the transition from the Middle to Upper Paleolithic as the time at which fully modern adaptive systems came to the forefront, emphasis is placed on the Middle Paleolithic itself in order to test hypotheses that hominids of this period were culturally archaic. Through an analysis of the archaeological evidence, it is concluded that by at least 100,000 years ago people of the period, usually regarded as being somewhat less than human were, on the contrary, fully modern in terms of their behavioral and cultural systems. This conclusion applies to both the Neanderthals and their anatomically modern contemporaries. The author further concludes that the cultural and behavioral differences between the two types were minimal and that there was a potential for interaction and acculturation between them. The possibility is raised that the Near East is the region in which modern human cultural adaptation arose and then dispersed to other regions.

Learn how nutrition has driven--and continues to drive--human evolution

This pioneering text draws from molecular nutrition, nutritional sciences, dietetics, genetics, genomics, and anthropology to examine how chemical nutrients and genetics shape the human species. It presents a vital portrait of the fundamental role that nutrition has played and continues to play in shaping who and what human beings are, where we evolved from, and where we might be headed as a species.

The author's innovative molecular biological approach moves the field of nutrition well beyond its traditional dietetic and anthropological origins to the front lines of genomic research. Following a presentation of molecular biology concepts that are essential for the study of human nutrition, the author explores such key topics as:

Bioinformatics and the -omics revolution

Recent human evolution

Molecular mechanisms of gene-nutrient interactions

Role of nutrients and genomics in disease

Evolution of micronutrient metabolism, protein structure, and human disease

Nutrients and the human life cycle

Mismatch of contemporary dietary patterns and our genetic makeup

Laboratory tools for nutrigenomics and human evolutionary studies

Figures and illustrations provided throughout the text help readers grasp and visualize complex concepts and processes with ease. For readers interested in pursuing particular topics in greater depth, an extensive list of current references is provided.

This text is ideal for undergraduate and graduate students in human nutrition, dietetics, metabolism, molecular biology, and many other allied health sciences. Nowhere else can readers find such an integratedblend of medical, nutritional, and biochemical disciplines to aid in understanding the role of nutrients in human evolution.

For many years, it has been known that when rats and mice are given a reduced amount of food, their life span is increased and they remain healthy and vigorous at advanced ages.

What is the reason for this change in the usual pattern of aging? The evidence is overwhelming that the life extension results from a slowing of aging processes. And the factor responsible is the decrease in caloric intake. The obvious question: How does this factor work? A good question - and the reason that research on the anti-aging action of caloric restriction is today one of the most studied research areas in biological gerontology. For it is felt that if the biological mechanisms of the anti-aging action of caloric restriction can be uncovered, we would gain an understanding of the basic nature of aging processes, which would, in turn, yield possible interventions in human aging. This book aims to provide the growing number of researchers in this field (faculty, postdoctoral trainees, and graduate students) with a detailed knowledge of what is known about caloric restriction within the frame of gerontology, as well as insights on future of this field.

This volume is the proceedings of the International Conference on Inhibin, Activin: Recent Advances and Future Views held in Tokushima, Japan from November 9-10, 1996. The Internationally recognized faculty present the latest research in the exploration of inhibin, activin and follistatin mechanisms of action.

This book explores the socio-political implications of human heredity from the second half of the nineteenth century to the present postgenomic moment. It addresses three main phases in the politicization of heredity: the peak of radical eugenics (1900-1945), characterized by an aggressive ethos of supporting the transformation of human society via biological knowledge; the repositioning, after 1945, of biological thinking into a liberal-democratic, human rights framework; and the present postgenomic crisis in which the genome can no longer be understood as insulated from environmental signals. In Political Biology, Maurizio Meloni argues that thanks to the ascendancy of epigenetics we may be witnessing a return to soft heredity - the idea that these signals can cause changes in biology that are themselves transferable to succeeding generations. This book will be of great interest to scholars across science and technology studies, the philosophy and history of science, and political and social theory.

What if there were a pill for love? Or an anti-love drug, designed to help us break up? This controversial and timely new book argues that recent medical advances have brought chemical control of our romantic lives well within our grasp. Substances affecting love and relationships, whether prescribed by doctors or even illicitly administered, are not some far-off speculation - indeed our most intimate connections are already being influenced by pills we take for other purposes, such as antidepressants. Treatments involving certain psychoactive substances, including MDMA-the active ingredient in Ecstasy-might soon exist to encourage feelings of love and help ordinary couples work through relationship difficulties. Others may ease a breakup or soothe feelings of rejection. Such substances could have transformative implications for how we think about and experience love. This brilliant intervention into the debate builds a case for conducting further research into "love drugs" and "anti-love drugs" and explores their ethical implications for individuals and society. Rich in anecdotal evidence and case-studies, the book offers a highly readable insight into a cutting-edge field of medical research that could have profound effects on us all. Will relationships be the same in the future? Will we still marry? It may be up to you to decide whether you want a chemical romance. -- .

Zilinskas and Balint and their contributors examine the divisions between minority groups and the scientific community, particularly in the area of medical and genetic research. Minorities have reasons to be skeptical of medical research in general and genetics research in particular. The sad history of the Tuskegee experiment, in which black men with syphilis were left untreated so that the course of the disease could be studied, undermined confidence in the ethics of medical researchers. More recently, publication of "The Bell Curve" reanimated controversy over purported genetic distinctions among the races that could have powerfully negative social implications.

In contrast, as the essays make clear, the Human Genome Project, conducted in accordance with the highest ethical standards, has the potential to make dramatic positive contributions to the health of all human beings. Members of minority communities in particular--who statistically are at high risk of adverse health outcomes in the United States--have much to gain from innovative medical diagnostics and therapies that will result from the study of human genetics. Therefore, if we are to benefit fully from this new knowledge, it is vital that the distrust, skepticism, and misconceptions relating to genetics research be overcome. This is a provocative collection for scholars, students, researchers, and community leaders involved with minority and public health issues.

In this volume three of the key figures in the field set out to establish some parameters for the study of creativity. After examining the earlier works on the subject, they present their current research findings, and then attempt to project where the field is likely to go in the decade ahead.

Gardner, the proponent of biological aspects of creativity, ranges widely as he examines Freud's Vienna and the features of medicine that both constrained and challenged his revolutionary idea. Csikszentmihalyi, with his exploration of genes and memes, examines individual issues as well as broader contextual concerns. Feldman concentrates on the notions of coincidence and the transformational imperative. These essays point to the rejuvenation of the field of creativity research, and suggest where the field is likely to move in the future. This work is a major synthesis of value to advanced researchers as well as students and all those concerned with creativity.

Arguing that human evolution has come to a stand-still, this book sets out to explore the evolutionary steps that have defined life on this planet. It describes the stages from cosmic to chemical and biological evolution and to the development of civilization and culture. From this scientific approach, the author concludes that new rules of ethics are required in order to maintain and improve the civilization and culture of humanity. Matare argues for corrective genetic interference and explores the moral implications.

What happened along the evolutionary trail that made humans so unique? In his accessible style, Michael Gazzaniga pinpoints the change that made us thinking, sentient humans different from our predecessors. He explores what makes human brains special, the importance of language and art in defining the human condition, the nature of human consciousness, and even artificial intelligence.

This study is based on the following premises: human beings differ in their physiological reactions to their different environments and consequently differ in appearance; individuals who resemble each other in observable characteristics tend to be grouped together geographically; therefore, races exist in man as in any other species.