Marine Pharmacognosy; Action of Marine Biotoxins at the Cellular Level

Marine Pharmacognosy; Action of Marine Biotoxins at the Cellular Level PDF Author: Dean Frederick Martin
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 344

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Marine Pharmacognosy; Action of Marine Biotoxins at the Cellular Level

Marine Pharmacognosy; Action of Marine Biotoxins at the Cellular Level PDF Author: Dean Frederick Martin
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 344

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Book Description


Marine Pharmacognosy

Marine Pharmacognosy PDF Author: Dean Martin
Publisher: Elsevier
ISBN: 032315560X
Category : Medical
Languages : en
Pages : 330

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Book Description
Marine Pharmacognosy: Action of Marine Biotoxins at the Cellular Level focuses on the study and utilization of marine drugs. This book discusses the methods of isolation and characterization of bioactive agents, bioassays, microcalorimetry, voltage-clamp techniques, toxin-induced alterations, measurement of muscle contraction, and kinetics of toxin-induced hemolysis. Organized into nine chapters, this book starts with an overview of the use and usefulness of marine bioactive agents as research tools. This text then examines the pharmacological effects of maculotoxin, which are similar to those of tetrodoxin and saritoxin. Other chapters consider the role of choline in general cellular processes. This book discusses as well the rate of hemolysis as a function of prymnesin concentration. The final chapter deals with the features of the prymnesin–membrane interaction. This book is a valuable resource for pharmacologists, bacteriologists, zoologists, physiologists, botanists, and oceanographers. Scientists involved in biological oceanography and comparative physiology will also find this book useful.

Cell Cycle Regulation

Cell Cycle Regulation PDF Author: James R. Jr. Jeter
Publisher: Elsevier
ISBN: 0323158161
Category : Science
Languages : en
Pages : 276

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Book Description
Cell Cycle Regulation describes the interaction of the nuclear genome, the cytoplasmic pools, the organelles, the cell surface, and the extracellular environment that govern the cell cycle regulation. Comprised of 12 chapters, this book includes cell cycle regulation around nuclear chromatin modulation and some aspects of chromatin modification and its effects on gene expression. The opening chapters describe the macromolecular structure of chromatin subunits and the types and kinds of postsynthetic modifications occurring on histones, such as acetylation, methylation, and phosphorylation. The subsequent chapter deals extensively on histone phosphorylation, especially histone H1, H1M, H2A, and H3, during the cell cycle. Another chapter describes a selective histone leakage from nuclei during isolation accounting for the role of histone acetylation and phosphorylation in gene expression. This book goes on examining the assembly of microtubules and structural analysis on the regulatory role of calcium into a pattern for mitosis regulation. Other chapters discuss the methods used to measure intracellular pH changes as a function of the cell cycle of Physarum and the quantitative and qualitative changes taking place during the various phases of the cell cycle. The use of mammalian cell fusion to study cell cycle regulation and the protein synthesis regulation during the cell cycle in Chlamydomonas reinhardi are then discussed. The final chapters focus on the regulation of expression of an inducible structural gene during the cell cycle of the green alga Chlorella. The chapters provide evidence for a model of positive and negative oscillatory control of inducible gene expression. An analysis of the expression of cytoplasmic genes as a function of the cell cycle using pedigrees of a large number of individual yeast cells is also included. This book will appeal to a wide variety of life scientists and to molecular, cellular, and developmental biologists.

Eukaryotic Cell Genetics

Eukaryotic Cell Genetics PDF Author: John Morrow
Publisher: Elsevier
ISBN: 0323158188
Category : Nature
Languages : en
Pages : 277

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Book Description
Eukaryotic Cell Genetics reviews the state of knowledge in somatic cell genetics. The book begins by discussing the development of somatic cell genetics, focusing on the estimation of mutation rates in mammalian cells, with frequent reference to the use of drug resistance as a selective character. It then considers some of the specific properties of such variants in order to understand their molecular basis. The subsequent chapters examine the properties of specific types of auxotrophic variants; the means by which eukaryotic cells may be reassembled to give rise to viable cellular composites; gene regulation in eukaryotic organisms; and chromosome mapping. The discussions also include differentiation in cultured cells; neoplastic transformation; the modulation of gene expression in cultured cells; mutation induction in cultured cells; applications of cell culture; and the mechanism of cellular aging. This book is intended for researchers in the fields of genetics and molecular biology, nonspecialists interested in what is happening in a very exciting area of biology, and students at the graduate level in cell biology.

Nuclear-Cytoplasmic Interactions in the Cell Cycle

Nuclear-Cytoplasmic Interactions in the Cell Cycle PDF Author: Gary Whitson
Publisher: Elsevier
ISBN: 0323154468
Category : Science
Languages : en
Pages : 359

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Book Description
Nuclear-Cytoplasmic Interactions in the Cell Cycle

Cell Biology of Physarum and Didymium V1

Cell Biology of Physarum and Didymium V1 PDF Author: Henery Aldrich
Publisher: Elsevier
ISBN: 0323149596
Category : Nature
Languages : en
Pages : 459

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Book Description
Cell Biology of Physarum and Didymium, Volume I: Organisms, Nucleus, and Cell Cycle presents important experimental research on Physarum and Didymium for developmental and cellular studies. This book is organized into four parts, encompassing 12 chapters that summarize the taxonomy, biological activities, genetics, and cell cycle of these organisms. The opening part covers two chapters on morphology, taxonomy, phylogeny, biosystematics, and evolutionary implications of Physarum and Didymium species. This is followed by discussions on the biological aspects of these species. These include periodic events of the mitotic cycle in Physarum polycephalum. The general characteristics of chemoreception at the membrane level using plasmodium as a model organism, as well as the structure and motility of plasmodium, are also included. The third part of the book focuses on genetic analysis of plasmodium development and the discovery of techniques for the genetic manipulation of P. polycephalum. Progress in the genetic analysis of other processes is summarized. The concluding part examines the morphological evolution of the nucleus during the mitotic cycle together with the results from ultracytochemical and radioautographic studies. It also includes a discussion on DNA organization and replication in P. polycephalum. Finally, the synthesis and degradation of RNA in Physarum and the relationship of these biochemical processes to mitotic cycle and differentiation are tackled in the concluding chapter. The book will serve as a frequent, single reference source to brief cell biologists on the primary research on Physarum and Didymium. It will be a good source for graduate students in cell biology, and perhaps in other graduate courses.

Recombinant DNA And Cell Proliferation

Recombinant DNA And Cell Proliferation PDF Author: Gary Stein
Publisher: Elsevier
ISBN: 0323153364
Category : Science
Languages : en
Pages : 378

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Book Description
Recombinant DNA and Cell Proliferation focuses on the use of recombinant DNA technology in investigating the regulation of cell proliferation. Topics include gene transfer for assessing the role of defined DNA sequences in triggering DNA replication, nucleic acid hybridization probes for analyzing the regulation of specific genes during the cell cycle, and cloned DNAs for studying genes expressed with proliferation and differentiation. This book is organized into three sections encompassing 13 chapters and begins with a discussion on the expression of specific genes during the cell cycle. This text also deals with topics such as the use of cloned SV40 DNA fragments to examine signals for cell proliferation, expression of dihydrofolate reductase and thymidylate synthase genes in mammalian cells, and gene expression during the cell cycle of Chlamydomonas reinhardtii. The following chapters explore the expression of histone genes during the cell cycle in human cells; organization and expression of eukaryotic ribosomal protein genes; and expression of the alpha-fetoprotein gene during development, regeneration, and carcinogenesis. This book also introduces the reader to the role of the cell division cycle in induced differentiation, gene regulation in muscle cells, regulation of nonmuscle actin gene expression during early development, and sequences at ends of cellular DNA molecules in relation to telomere replication and function. An overview of the biochemical aspects of cell proliferation and the genes and gene products that are necessary and specific for cell proliferation concludes the book. This book will be of value both to advanced students and to research scientists.

Cell Biology of the Eye

Cell Biology of the Eye PDF Author: David Mcdevitt
Publisher: Elsevier
ISBN: 0323145213
Category : Science
Languages : en
Pages : 585

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Book Description
Cell Biology of the Eye discusses the eye tissues and its role in the investigations on active transport, growth factors, receptors, and differentiation. The book is comprised of articles which discuss corneal proteoglycans; transport of ions and metabolites across the corneal endothelium; the ontogeny and localization of the crystallins in eye lens development and regeneration; the biological-physical basis of lens transparency; the chromatic organization of the retina; and the dopamine neurons in the retina. This treatise will serve as a valuable reference text for graduate and professional students, teachers, researchers, clinicians, and to all in the vision field.

Cell Biology of Physarum and Didymium V2

Cell Biology of Physarum and Didymium V2 PDF Author: Henery Aldrich
Publisher: Elsevier
ISBN: 0323152449
Category : Nature
Languages : en
Pages : 394

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Book Description
Cell Biology of Physarum and Didymium, Volume II: Differentiation, Metabolism, and Methodology summarizes important experimental research using Physarum and Didymium for developmental and cellular studies. This book is organized into three parts, encompassing 28 chapters that cover the differentiation, metabolism, and experimental techniques for cellular studies. After presenting an introduction to some aspects of developmental biology, this volume describes the ultrastructure and physiology of sporulation, spore germination, encystment, excystment, spherulation, and spherule germination. This is followed by a discussion on regulatory events leading to morphogenesis and on biochemical, physiological, and structural data on the amoeboid stage. The second part focuses on metabolic aspects. This includes metabolic characteristics of myxomycetes; the formation of nucleotides in Physarum by de novo synthesis and from nucleic acid degradation products; and radiation and radiomimetic agents on myxomycete species. Considerable chapters in the concluding part are devoted to procedures and protocol for isolation of cell components from Physarum and Didymium species. This volume also evaluates some techniques, including electron microscopy, time-lapse microcinematography, phase-contrast microscopy, Feulgen staining, and culture methods. The concluding chapters examine the preparation, isolation, and characterization of ribonucleic acid, histone, plasmodial polysaccharides, myosin, actins, and fragmin. The book will serve as a frequent, single reference source to brief cell biologists on the primary research on Physarum and Didymium. It will also be a good source for graduate students in cell biology and perhaps in other graduate courses.

U.S. Environmental Protection Agency Library System Book Catalog

U.S. Environmental Protection Agency Library System Book Catalog PDF Author: United States. Environmental Protection Agency. Library Systems Branch
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 490

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Book Description