Download or read book Transgenerational and Epigenetic Effects of Developmental Exposure to Atrazine on Medaka Oryzias Latipes written by Jacob Alexander Cleary and published by . This book was released on 2018 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Exposure to environmental chemicals can cause epigenetic transgenerational inheritance of altered phenotypes. Chemicals such as the plasticizer bisphenol-A (BPA), the fungicidal vinclozolin, and the oral contraceptive component 17a-ethinylestradiol (EE2) induce epigenetic changes in various species. Each of these chemicals is an environmentally pervasive endocrine disrupting compound, as is the case with the abundantly used herbicide atrazine, whose endocrine disrupting mechanisms still remain unclear. Atrazine (ATZ) is presently one of the most abundantly used herbicides in the United States, and a common contaminant of natural water bodies and drinking waters in high-use areas. ATZ belongs to the triazine herbicides which specifically target photosynthetic tissues, yet ATZ can affect animal health. Fish exposed to ATZ and EE2 display dysregulation of reproductive processes, which include alterations to the hypothalamic-pituitary-gonadal (HPG) axis pathways. However, the potential for ATZ-induced transgenerational inheritance of reproductive dysfunction has not been investigated in fish. The transgenerational reproductive consequences of ATZ exposure have been explored in rats, but fish are among the species at greatest risk from ATZ exposure, therefore, I chose a model species to represent this environmentally relevant scenario. In the present study I analyzed the effects of ATZ and EE2 exposures during early development on transgenerational reproductive dysregulation in Japanese medaka (Oryzias latipes). F0 medaka were exposed to ATZ, EE2, and a solvent during the first twelve days of development with no exposure over the subsequent three generations. These early developmental exposures overlap with the critical windows of embryonic germ cell development, gonadogenesis, and sex determination when gonadal DNA methylation is being reprogrammed. Exposed males and females of the F0 treatment lineages were bred to produce the F1 generation, the F1 offspring were bred to produce the F2 generation, and the F2 offspring were bred to produce the F3 generation. Neither ATZ nor EE2 altered sperm parameters, gonadosomatic, or hepatosomatic indices in the treated F0 generation. However, the hepatosomatic index was reduced in F2 females derived from F0 fish treated with either ATZ or EE2. Hepatosomatic and gonadosomatic indices are ratios of liver and gonad weights to the total weight of the fish, which are cursory metrics for evaluating energetic and reproductive health. The fecundity of F0 and F2 fish was unaffected by exposure to ATZ or EE2; however, the fertilization rate was decreased among the F2 fish derived from the low ATZ and low EE2 treated F0 generation. Moreover, there were significant transgenerational differences in the expression of reproductive regulatory genes and genes required for DNA methylation. Genomic methylation patterns are catalyzed by DNA methyltransferase enzymes (dnmts) that regulate the heritable transcriptional activity of specific regions of DNA essential to development. Present results suggest that early life exposure to ATZ and EE2 cause no significant effects in the immediate generation, but that future generations of fish are at greater risk of reproductive dysfunction."--Abstract from author supplied metadata.
Download or read book Epigenetic and Developmental Effects from Exposure to Glyphosate and Roundup on Developing Medaka Fish Oryzias Latipes written by Chelsea M. Smith and published by . This book was released on 2018 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicology of Fishes written by Kristine L. Willett and published by CRC Press. This book was released on 2024-03-07 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date, comprehensive toxicology handbook is devoted to the effects of environmental pollution on fish. Fish species represent nearly half of all vertebrates and have become important sentinels for environmental contamination and model organisms for understanding adverse outcomes from exposures. This new edition is written by recognized experts, and it highlights the significant research progress in fish toxicology that has resulted from rapid technological developments in analytical, biochemical, and genomic sciences. The book: Discusses fundamental topics such as toxicokinetics in fishes, processes governing biotransformation within these organisms, and reactive oxygen species and oxidative stress Explains key target organ systems for chemical impacts in fish, such as the nervous and immune systems, and how fishes can develop resistance to chemical toxicity Covers multi-transgenerational effects on fishes, epigenetics, proteomics and metabolomics, and adverse outcome pathways Replacing the case studies in the first edition, this update delves into the impacts of microplastics, pharmaceuticals, and oil spills in dedicated final chapters. With nearly 200 illustrations and tables, this comprehensive reference work presents concepts in a way that is useful for both novices to and experts in the field of fish toxicology.
Download or read book Epigenetics in Aquaculture written by Francesc Piferrer and published by John Wiley & Sons. This book was released on 2023-10-02 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: EPIGENETICS IN AQUACULTURE This essential guide will allow you to understand how new developments in our knowledge of epigenetic mechanisms and epigenetic inheritance can be applied to improve aquaculture production and aquatic resource management and conservation. Epigenetics is the study of heritable changes in gene expression that are independent of alterations in the nucleotide sequence. It integrates genomic and environmental influences to shape the phenotype. Epigenetics is a field with particular relevance to aquaculture and aquatic organisms, since it underpins acclimatory responses to diverse and changing environments and inheritance of desired phenotypes. Epigenetics in Aquaculture provides a comprehensive introduction to epigenetics, epigenetic mechanisms, epigenetic inheritance, and research methods. It also provides the current state of the art on research and development on epigenetics in the major functions of aquatic organisms in the framework of aquaculture production. The fact that aquaculture is the fastest-growing sector of food production makes the book especially timely. Readers will also find: Detailed treatment of subjects including aquatic faunal reproduction, sex determination, growth regulation, nutritional programming, disease resistance, stress response and much more Survey of current research lacunae and the projected future of the discipline An authorial team of internationally renowned experts Epigenetics in Aquaculture is a valuable reference for researchers, biologists and advanced students in any area of marine science, oceanography, aquaculture, environmental science, and food production.
Download or read book Environmental Epigenetics written by L. Joseph Su and published by Springer. This book was released on 2015-05-18 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the toxicological and health implications of environmental epigenetics and provides knowledge through an interdisciplinary approach. Included in this volume are chapters outlining various environmental risk factors such as phthalates and dietary components, life states such as pregnancy and ageing, hormonal and metabolic considerations and specific disease risks such as cancer cardiovascular diseases and other non-communicable diseases. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses.
Download or read book Male Reproductive Health written by Wei Wu and published by BoD – Books on Demand. This book was released on 2020-03-04 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Male reproductive health is an important area affecting men's overall health and well-being. Infertility is a worldwide problem that affects approximately 15% of married couples. Half of these cases can be traced to male partners. Infertile men are at an elevated risk of cancer development later in life, primarily genitourinary malignancies such as testicular and prostate cancer. This book will focus on male reproductive health, from the aspects of semen quality, male infertility, testicular cancer, and prostate cancer, and their detection, diagnosis, treatment, and prevention.
Download or read book The Fish Oocyte written by Patrick J. Babin and published by Springer Science & Business Media. This book was released on 2007-08-20 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the growing needs in deciphering the biological processes associated with fish reproduction, in view of the growth of aquaculture and the dwindling natural stocks of commercially important fish. It presents a comprehensive overview on egg production in fish, from the standpoint of the oocyte. With this view in mind, the book includes chapters on oocyte development (oogenesis), hormonal regulation and hormone receptors, formation of the egg envelopes, growth, accumulation of nutrients and maternal transcripts, maturation, hydration, ovulation and fertilization. A special emphasis is placed on using state-of-the-art tools including electron microscopy for discerning the ultra-structure of the follicle and genomic/proteomic tools to fully understand biological basis of fish reproduction. Studies on promoting oocyte maturation, ovulation and spawning in farmed fish and preservation of fish oocytes at low temperatures are also included. The book will appeal to University lecturers, students, research scientists and those associated with culture of fish in freshwater or marine aquaculture.
Download or read book The Fish Oocyte written by Patrick J. Babin and published by Springer Science & Business Media. This book was released on 2007-08-17 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview on egg production in fish, from the standpoint of the oocyte. It covers oocyte development, maturation, hydration and fertilization. The book places special emphasis on using state-of-the-art tools for discerning the ultra-structure of the follicle and genomic/proteomic tools to fully understand biological basis of fish reproduction.
Download or read book The Physiology of Fishes written by Suzanne Currie and published by CRC Press. This book was released on 2020-09-07 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fifth edition of The Physiology of Fishes represents a compendium of knowledge across fish physiology, collecting up-to-date research into an easy-to-access single textbook. Written by the leaders in the field, it provides a comprehensive, accessible review of the core topics, integrating physiology with environmental science, ecology, evolution, and molecular cell biology. New chapters address Epigenetics, Biomechanics and Locomotion, and Behaviour and Learning. Each chapter contains an extensive bibliography, providing readers with the best sources from the primary literature. Almost three decades after the publication of the first edition, this book remains the only published single-volume work on fish physiology. The fifth edition provides an important reference for new students of fish biology, marine and freshwater biologists, ichthyologists, fisheries scientists, and comparative physiologists.
Download or read book Hormones Brain and Behavior written by and published by Academic Press. This book was released on 2016-11-09 with total page 2494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hormones, Brain and Behavior, Third Edition offers a state-of-the-art overview of hormonally-mediated behaviors, including an extensive discussion of the effects of hormones on insects, fish, amphibians, birds, rodents, and humans. Entries have been carefully designed to provide a valuable source of information for students and researchers in neuroendocrinology and those working in related areas, such as biology, psychology, psychiatry, and neurology. This third edition has been substantially restructured to include both foundational information and recent developments in the field. Continuing the emphasis on interdisciplinary research and practical applications, the book includes articles aligned in five main subject sections, with new chapters included on genetic and genomic techniques and clinical investigations. This reference provides unique treatment of all major vertebrate and invertebrate model systems with excellent opportunities for relating behavior to molecular genetics. The topics cover an unusual breadth (from molecules to ecophysiology), ranging from basic science to clinical research, making this reference of interest to a broad range of scientists in a variety of fields. Comprehensive and updated coverage of a rapidly growing field of research Unique treatment of all major vertebrate and invertebrate model systems with excellent opportunities for relating behavior to molecular genetics Covers an unusual breadth of topics and subject fields, ranging from molecules to ecophysiology, and from basic science to clinical research Ideal resource for interdisciplinary learning and understanding in the fields of hormones and behavior
Download or read book Multiple Stressors A Challenge for the Future written by Carmel Mothersill and published by Springer Science & Business Media. This book was released on 2007-08-20 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecotoxiclogical risk from multiple stressors covers any situation where org- isms are exposed to a combination of environmental stressors. These include physical and chemical pollutants as well as other stressors such as parasites and environmental impact (e. g. , climate change or habitat loss). The combi- tion of stressors can result in increased risk to organisms (either additive or synergistic effects) or decreased effects (protective or antagonistic effects). The multiple stressor challenge is an international, multi-disciplinary problem requiring an international, multi-disciplinary approach. The c- rent approach to multiple stressors is to examine one stressor at a time and assume additivity. Little work has been done on combinations of stressors such that potential interactions can be determined. The problem is very complex. Multiple stressors pose a whole spectrum of challenges that range from basic science to regulation, policy and gove- ance. The challenges raise fundamental questions about our understanding of the basic biological response to stressors, as well as the implications of those uncertainties in environmental risk assessment and management. In addition to the great breadth, there is also great depth in the research ch- lenges, largely due to the complexity of the issues. From a basic science point of view, many of the mechanisms and processes under investigation are at the cutting edge of science — involving new paradigms such as genomic ins- bility and bystander effects.
Download or read book An Introduction to Ecological Genomics written by Nico M. van Straalen and published by Oxford University Press. This book was released on 2012 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors also provide a comparative survey of the properties of genomes (genome size, gene families, synteny, and polymorphism) for prokaryotes as well as the main eukaryotic models.
Download or read book Environmental Metabolomics written by Diana Alvarez-Munoz and published by Elsevier. This book was released on 2020-06-03 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Metabolomics Applications in Field and Laboratory Studies: From the Exposome to the Metabolome presents an overview of the current state of aquatic environments and problems caused by human pressure and daily life. The presence of contaminants in nature and their effects are evaluated, along with recommendations for preservation. This book not only shows readers how to implement techniques, it also guides them through the process. As metabolomics becomes a more routine technique for environmental studies and future perspectives, a guide for validation and globalization of current approaches is needed. Presents relevant and reliable information on the use of different analytical techniques for establishing the environmental metabolomics of polluted systems Includes a critical review of each central topic in every chapter, together with a bibliography and future trends Provides, for the first time, a global opinion and guide for achieving standardized results
Download or read book From Epigenesis to Epigenetics written by Linda van Speybroeck and published by . This book was released on 2002 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today it is acknowledged that the expression of the genome depends on its intracellular, intercellular, organismic and environmental contexts. This text brings together reflections of researchers in molecular and developmental biology and philosophy of science on this field of biological research.
Download or read book An Introduction to Aquatic Toxicology written by Mikko Nikinmaa and published by Elsevier. This book was released on 2014-07-01 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Aquatic Toxicology is an introductory reference for all aspects of toxicology pertaining to aquatic environments. As water sources diminish, the need to understand the effects that contaminants may have on aquatic organisms and ecosystems increases in importance. This book will provide you with a solid understanding of aquatic toxicology, its past, its cutting-edge present and its likely future. An Introduction to Aquatic Toxicology will introduce you to the global issue of aquatic contamination, detailing the major sources of contamination, from where they originate, and their effects on aquatic organisms and their environment. State-of-the-art toxicological topics covered include nanotoxicology, toxicogenomics, bioinformatics, transcriptomics, metabolomics, as well as water management and the toxicological effects of major environmental issues such as algal blooms, climate change and ocean acidification. This book is intended for anyone who wants to know more about the impact of toxicants on aquatic organisms and ecosystems, or to keep up to date with recent and future developments in the field. Provides with the latest perspectives on the impacts of toxicants on aquatic environments, such as nanotoxicology, toxicogenomics, ocean acidification and eutrophication Offers a complete overview, beginning with the origins of aquatic toxicology and concluding with potential future challenges Includes guidance on testing methods and a glossary of aquatic toxicology terms
Download or read book Endocrine Disrupting Chemicals induced Metabolic Disorders and Treatment Strategies written by Muhammad Sajid Hamid Akash and published by Springer. This book was released on 2021-08-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers a detailed and comprehensive analysis of Endocrine Disrupting Chemicals (EDCs), covering their occurrence, exposure to humans and the mechanisms that lead to the parthogenesis of EDCs-induced metabolic disorders. The book is divided into three parts. Part I describes the physiology of the human endocrine system, with special emphasis on various types of metabolic disorders along with risk factors that are responsible for the development of these disorders. Part II addresses all aspects of EDCs, including their role in the induction of various risk factors that are responsible for the development of metabolic disorders. Part III covers up-to-date environmental regulatory considerations and treatment strategies that have been adopted to cure and prevent EDCs-induced metabolic disorders. This section will primarily appeal to clinicians investigating the causes and treatment of metabolic disorders. The text will also be of interest to students and researchers in the fields of Environmental Pharmacology and Toxicology, Environmental Pollution, Pharmaceutical Biochemistry, Biotechnology, and Drug Metabolism/Pharmacokinetics.
Download or read book Medaka written by Masato Kinoshita and published by John Wiley & Sons. This book was released on 2009-09-15 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medaka: Biology, Management, and Experimental Protocols, written by experienced researchers and reviewed by international leaders in the medaka field will provide details on how to set up and maintain medaka colonies in animal facilities, how to troubleshoot systems, how to handle the fish when applied to experimental methods, and most importantly it will introduce the researcher to cutting edge research in basic and applied biology using medaka as a model animal. The book will include well-written descriptions of experimental methods and protocols designed to educate the reader how to understand and handle medaka effectively. Medaka: Biology, Management, and Experimental Protocols will serve as the definitive reference on the species providing essential information on medaka biology, genetics, and genomics, practical guidance to maintenance of fish stocks, and valuable experimental protocols all in a single volume. This book will be a must have addition to the library of fish researchers and those using medaka as a model organism within their laboratories.
