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Our understanding of biological communication has grown significantly during the past decade. The advances in knowledge about the chemical nature of signals and their corresponding reception by specialized cells have led to identification, characterization, purification, cloning, and expression of specific receptor molecules. While the earlier literature emphasized com partmentalized treatment of informational molecules and their interaction with receptors, the progress in the recent past has allowed cross-fertilization in the examination of the of actions and mechanisms of steroid and protein hormones and other messengers. Investigators now have an increased ap preciation of the multiple ef...
Providing an overview of recent developments in the field of signal transduction, this volume emphasizes direct clinical significance. As such, topics like nuclear receptors, apoptosis, growth factors, cell cycles and cancer are examined.
As the title indicates, this book is a critical study of an Indian epic, ëThe Ramayanaí. It proceeds in the same order as that of Sanskrit original consisting of : Bala kanda, Ayodhya kanda, Aranya kanda, Kishkindha kanda, Sundara kanda, Yuddha kanda and Uttara kanda. While Valmikiís Ramayana is composed of about 24,000 slokas (verses), ëRamayana the Poisonous Treeí consists of 16 stories, long and short, accompanied by 11 ëlinksí (narratives that ëlinkí the stories) and 504 foot-notes that show evidence from the Sanskrit original in support of the critique. Besides the main components of the text, this book has a long ëPrefaceí discussing the social essence of the epic in the con...
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This volume, and its companion Volume 316, include newly developed methods to study vertebrate phototransduction and the visual cycle. Major topics covered include expression, isolation, and characterization of opsins; proteins that interact with rhodopsin; transducin and regulators of G-protein signaling; photoreceptor protein phosphatases, phosphodiesterase, and guanylylcyclase; cyclis nucleolide gated channels; Na+/Ca2+-K+ exchanges and ABCR transporter.The critically acclaimed laboratory standard for more than forty years, Methods in Enzymology is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today--truly an essential publication for researchers in all fields of life sciences.
This volume foxuses on the status of Ca2+ ions in regulation of phototransduction, light adaptation and the recovery phase in vertebrate photoreceptors. Particular emphasis is given to Ca2+-binding proteins and their targets, among them particulate guanylate cyclases, GPCR-coupled kinases and cyclic nucleotide-gated cation channels. The book also expands our understanding of events invovling Ca2+ in the retinal pigment epithelium, in synaptic transmission and secondary retinal neurons. A significant part of the book is dedicated to the role of Ca2+ in invertebrate phototransduction, the best-studied phospholipid-mediated signal transduction pathway. Several chapters explore association of gene defects with human retina disease and the generation of animal models of retinal degeneration.
Mechanisms of neural plasticity enable the encoding and memorization of information based on sensory inputs and can be harnessed to partially restore function after CNS assault such as stroke or head trauma. In the present book, experts from the field of visual system plasticity describe and evaluate the evidence for neural mechanisms proposed to underlie CNS plasticity in the major divisions of the brain dedicated to visual processing, the retina, sub-cortical structures and cortex. We present studies from a wide variety of disciplines that range from molecular biology to neurophysiology and computer modeling. Leading investigators discuss their own work, and integrate this research with colleagues from other specializations. The book points out future applications for this research including clinical uses and engineering within the biomedical sciences. This book is an exciting and thought provoking read for all levels of science enthusiast interested in the physical basis of learning and cognition.