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Download or read book Biology of the Harderian Gland written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of the Harderian Gland written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Susan M. Webb
Publisher : Springer Science & Business Media
ISBN 13 : 3642766854
Total Pages : 330 pages
Book Rating : 4.6/5 (427 download)
Download or read book Harderian Glands written by Susan M. Webb and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harderian glands, first described by Jacob Harder in two species of deer in 1694, are large, intraorbital glands which, with but few exceptions, are found in all land vertebrates. Certainly, their relatively large size, their phylogenetic age, and persistent conservation in all groups as they emerged from an aqueous to an air/land environment lend strong support to the logical deduction that they probably play an important role in the physiological adaptation to terrestrial life. Yet, few biologists know even what or where these glands are. For a variety of reasons, the Harderian glands have not received the attention they deserve and, as a result, the published works available have been scarce and scattered throughout the world literature. The current situation is remarkably similar to that which existed in regard to the pineal gland prior to the mid-1960s, i. e. , scattered literature, unknown function, few investigators, and little interest. Yet, following a few key papers, interest in the pineal gland expanded and soon an explosive increase in the knowledge and understanding of the pineal gland took place and continues today. Will history repeat itself? Originally, a few of us discussed the desirability of an informal Symposium on the Harderian glands.
Author : Susan M. Webb
Publisher : Springer
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.3/5 (91 download)
Download or read book Harderian Glands written by Susan M. Webb and published by Springer. This book was released on 1992 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harderian glands, first described by Jacob Harder in two species of deer in 1694, are large, intraorbital glands which, with but few exceptions, are found in all land vertebrates. Certainly, their relatively large size, their phylogenetic age, and persistent conservation in all groups as they emerged from an aqueous to an air/land environment lend strong support to the logical deduction that they probably play an important role in the physiological adaptation to terrestrial life. Yet, few biologists know even what or where these glands are. For a variety of reasons, the Harderian glands have not received the attention they deserve and, as a result, the published works available have been scarce and scattered throughout the world literature. The current situation is remarkably similar to that which existed in regard to the pineal gland prior to the mid-1960s, i. e. , scattered literature, unknown function, few investigators, and little interest. Yet, following a few key papers, interest in the pineal gland expanded and soon an explosive increase in the knowledge and understanding of the pineal gland took place and continues today. Will history repeat itself? Originally, a few of us discussed the desirability of an informal Symposium on the Harderian glands.
Author : George Keiser Smelser
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (463 download)
Download or read book Changes Induced in the Harderian Gland of the Guinea Pig by the Injection of Hypophyseal Extracts written by George Keiser Smelser and published by . This book was released on 1943 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernd Kaspers
Publisher : Academic Press
ISBN 13 : 0123972728
Total Pages : 456 pages
Book Rating : 4.1/5 (239 download)
Download or read book Avian Immunology written by Bernd Kaspers and published by Academic Press. This book was released on 2012-12-02 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Avian Immunology provides an up-to-date overview of the current knowledge of avian immunology. From the ontogeny of the avian immune system to practical application in vaccinology, the book encompasses all aspects of innate and adaptive immunity in chickens. In addition, chapters are devoted to the immunology of other commercially important species such as turkeys and ducks, and to ecoimmunology summarizing the knowledge of immune responses in free-living birds often in relation to reproductive success. The book contains a detailed description of the avian innate immune system, encompassing the mucosal, enteric, respiratory and reproductive systems. The diseases and disorders it covers include immunodepressive diseases and immune evasion, autoimmune diseases, and tumors of the immune system. Practical aspects of vaccination are examined as well. Extensive appendices summarize resources for scientists including cell lines, inbred chicken lines, cytokines, chemokines, and monoclonal antibodies. The world-wide importance of poultry protein for the human diet, as well as the threat of avian influenza pandemics like H5N1 and heavy reliance on vaccination to protect commercial flocks makes this book a vital resource. This book provides crucial information not only for poultry health professionals and avian biologists, but also for comparative and veterinary immunologists, graduate students and veterinary students with an interest in avian immunology. With contributions from 33 of the foremost international experts in the field, this book provides the most up-to-date review of avian immunology so far Contains a detailed description of the avian innate immune system reviewing constitutive barriers, chemical and cellular responses; it includes a comprehensive review of avian Toll-like receptors Contains a wide-ranging review of the "ecoimmunology" of free-living avian species, as applied to studies of population dynamics, and reviews methods and resources available for carrying out such research
Author : George A Parker
Publisher : Academic Press
ISBN 13 : 0128026960
Total Pages : 464 pages
Book Rating : 4.1/5 (28 download)
Download or read book Atlas of Histology of the Juvenile Rat written by George A Parker and published by Academic Press. This book was released on 2016-05-04 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlas of Histology of the Juvenile Rat should be of interest to toxicologic pathologists, toxicologists, and other biological scientists who are interested in the histomorphology of juvenile rats. For several decades the laboratory rat has been used extensively in nonclinical toxicology studies designed to detect potential human toxicity of drugs, agrochemicals, industrial chemicals, and environmental hazards. These studies traditionally have involved young adult rats that are 8-10 weeks of age as studies are started. It is becoming increasingly apparent that children and young animals may have different responses to drug/chemical exposures, therefore, regulatory agencies are emphasizing toxicology studies in juvenile animals. While the histologic features of organs from young adult and aged laboratory rats are well known, less is known about the histologic features of organs from juvenile rats. Final histologic maturity of many organs is achieved postnatally, thus immature histologic features must be distinguished from chemical- or drug-related effects. While this postnatal organ development is known to exist as a general concept, detailed information regarding postnatal histologic development is not readily available. The Atlas includes organs that are typically sampled in nonclinical toxicology studies and presents the histologic features at weekly intervals, starting at birth and extending through postnatal day 42. Written and edited by highly experienced, board-certified toxicologic pathologists Includes more than 700 high-resolution microscopic images from organs that are typically examined in safety assessment toxicology studies Detailed figure legends and chapter narratives present the salient features of each organ at each time interval Figures are available for further study via Elsevier’s Virtual Microscope, which allows viewing of microscopic images at higher magnification Valuable resource for toxicologic pathologists who are confronted with interpretation of lesions in juvenile rats in situations where age-matched concurrent controls are not available for comparison, e.g., with unscheduled decedents Figures are available for further study on ScienceDirect with Virtual Microscope, which allows viewing of microscopic images at higher magnification
Author : Leo Cannon
Publisher :
ISBN 13 : 9781536140347
Total Pages : 0 pages
Book Rating : 4.1/5 (43 download)
Download or read book Amphibians written by Leo Cannon and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibians: Biology, Ecology and Conservation opens with a review of the current knowledge on the Harderian gland of anuran amphibians. The Harderian gland is an orbital gland present in all vertebrates possessing nictitating membrane, with the primordium of the Harderian gland appearing during metamorphosis throughout the development of the nictitating membrane. The authors go on to discuss D-Aspartate (D-Asp), an excitatory amino acid involved in the synthesis of sex steroid hormones. High concentrations of D-Asp were found in the gonads, in the brain and in the Harderian gland of the green frog, Pelophylax esculentus. The current knowledge on the D-Asp in gonads and in tissues during the seasonal reproductive cycle is reviewed. Since D-Asp modulates sex hormone synthesis, this book correlates the local amino acid levels with serum and local sex hormone concentrations. Next, the authors report on the existing work on the steroidogenic pathways activated in reproductive and post-reproductive phases in both testis and brain in the aforementioned green frog. Plasma testosterone levels are low in the non-breeding period and high during the breeding period, while 17β-estradiol levels illustrate a contradictory trend. This study indicates a close correlation between steroidogenic process in the testis and in the brain, suggesting a synergic mechanism of regulation. The concluding chapter presents three case studies that demonstrate how the life cycle of the giant toad, Rhinella marina, as well as its somatic and hepatosomatic index, voracious appetite and highly permeable skin make it a species susceptible to the bioaccumulation of organic and inorganic pollutants and their toxicological effects. Due to these characteristics, R. marina is considered to be a good biomonitor of environmental pollution.
Author : Krystal A. Tolley
Publisher : Univ of California Press
ISBN 13 : 0520276051
Total Pages : 304 pages
Book Rating : 4.5/5 (22 download)
Download or read book The Biology of Chameleons written by Krystal A. Tolley and published by Univ of California Press. This book was released on 2013-11-16 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: They change color depending on their mood. They possess uniquely adapted hands and feet distinct from other tetrapods. They feature independently movable eyes. This comprehensive volume delves into these fascinating details and thorough research about one of the most charismatic families of reptilesÑChameleonidae. Written for professional herpetologists, scholars, researchers, and students, this book takes readers on a voyage across time to discover everything that is known about chameleon biology: anatomy, physiology, adaptations, ecology, behavior, biogeography, phylogeny, classification, and conservation. A description of the natural history of chameleons is given, along with the fossil record and typical characteristics of each genus. The state of chameleons in the modern world is also depicted, complete with new information on the most serious threats to these remarkable reptiles.
Author : Hing-Sing Yu
Publisher : CRC Press
ISBN 13 : 1000098834
Total Pages : 561 pages
Book Rating : 4.0/5 ( download)
Download or read book Melatonin written by Hing-Sing Yu and published by CRC Press. This book was released on 2020-10-28 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Melatonin: Biosynthesis, Physiological Effects, and Clinical Applications provides a thorough review of recent advances in major areas of melatonin research. The book is arranged in a logical sequence, beginning with the history of melatonin and then proceeding to cover its biochemistry and secretion, physiological effects, and clinical significance. New findings and current concepts are emphasized, and a significant amount of previously unpublished data are included. The book will be an important reference for neurobiologists, cell biologists, ophthalmologists, endocrinologists, neuroendocrinologists, reproductive biologists, psychiatrists, and other researchers and clinicians interested in melatonin.
Author : Peter Greaves
Publisher : Elsevier Publishing Company
ISBN 13 :
Total Pages : 844 pages
Book Rating : 4.3/5 (91 download)
Download or read book Histopathology of Preclinical Toxicity Studies written by Peter Greaves and published by Elsevier Publishing Company. This book was released on 1990 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: Histopathological assessment of tissue sections is an important componant of many preclinical studies which are conducted to support the safety and clinical development of novel therapeutic agents for use in the treatment of human diseases. The drug discovery process, aided by modern biotechnology, is now capable of generating highly potent, pharmacologically active agents which can give rise to quite unusual constellations of tissue pathology. The complexity and the number of histopathological findings in individual studies indicate the need for lucididy in descriptions and conclusions. In the light of these and other difficulties, this text is aimed towards bringing together into one volume a description of histopathological changes which relate to toxicity testing of therapeutic agents in the usual test species: rat, mouse, dog and non-human primate. This book is an excellent starting point for the analysis of drug-induced findings in toxicity studies.
Author : Society for Experimental Biology and Medicine (New York, N.Y.)
Publisher :
ISBN 13 :
Total Pages : 570 pages
Book Rating : 4.3/5 (97 download)
Download or read book Proceedings of the Society for Experimental Biology and Medicine written by Society for Experimental Biology and Medicine (New York, N.Y.) and published by . This book was released on 1988 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: List of members in each volume.
Author : M. Peaker
Publisher : Cambridge University Press
ISBN 13 : 9780521206297
Total Pages : 348 pages
Book Rating : 4.2/5 (62 download)
Download or read book Salt Glands in Birds and Reptiles written by M. Peaker and published by Cambridge University Press. This book was released on 1975-07-03 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the authors in writing this monograph has been to provide a comprehensive and critical, but personal account of salt glands. Papers on salt glands are scattered through a great many different journals. There is therefore a great need for a synthesis of what is known about salt glands. The means by which salt glands perform their vital function of forming and excreting a concentrated salt solution is of great biological importance in understanding salt and water relations in the cells of all living things. In addition to the basic physiology of salt glands there is consideration of their ecological importance, their interaction with other systems of the body, their role in non-marine birds and reptiles and their evolution. Salt glands have interested biologists from a wide range of disciplines. This book brings together the scattered literature and will be a convenient source of reference to those working in the field, as well as providing information for comparative studies and for teaching purposes.
Author : Ulrich Mohr
Publisher : Springer Science & Business Media
ISBN 13 : 3662079739
Total Pages : 487 pages
Book Rating : 4.6/5 (62 download)
Download or read book International Classification of Rodent Tumors. The Mouse written by Ulrich Mohr and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists from both academia and industry in many countries have closely cooperated to arrive at a consensus on the descriptions of all the types of tumour and preneoplastic lesions encountered in laboratory mice. The series of fascicles should provide information and guidelines especially adapted for international use in practical toxicologic pathology. Images showing the typical appearance of the discussed lesions and references to the most recently published papers complete the information presented here.
Author : Ernest Edward Williams
Publisher :
ISBN 13 :
Total Pages : 756 pages
Book Rating : 4.:/5 (318 download)
Download or read book Advances in Herpetology and Evolutionary Biology written by Ernest Edward Williams and published by . This book was released on 1983 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lynn C. Anderson
Publisher : Academic Press
ISBN 13 : 008053533X
Total Pages : 1345 pages
Book Rating : 4.0/5 (85 download)
Download or read book Laboratory Animal Medicine written by Lynn C. Anderson and published by Academic Press. This book was released on 2002-06-20 with total page 1345 pages. Available in PDF, EPUB and Kindle. Book excerpt: A volume in the American College of Laboratory Animal Medicine series, this second edition has over 40% new material, including the addition of six new topics and many others that are completely rewritten. The book comprehensively covers the biological and disease aspects of laboratory animal medicine while examining other aspects such as the biohazards associated with the use of animal experimentation and factors complicating the bioethics of animal research.
Author : Larry Engelking
Publisher : Academic Press
ISBN 13 : 012391910X
Total Pages : 789 pages
Book Rating : 4.1/5 (239 download)
Download or read book Textbook of Veterinary Physiological Chemistry written by Larry Engelking and published by Academic Press. This book was released on 2014-08-12 with total page 789 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the gap between basic and clinical science concepts, the Textbook of Veterinary Physiological Chemistry, Third Edition offers broad coverage of biochemical principles for students and practitioners of veterinary medicine. The only recent biochemistry book written specifically for the veterinary field, this text covers cellular-level concepts related to whole-body physiologic processes in a reader-friendly, approachable manner. Each chapter is written in a succinct and concise style that includes an overview summary section, numerous illustrations for best comprehension of the subject matter, targeted learning objectives, and end of the chapter study questions to assess understanding. With new illustrations and an instructor website with updated PowerPoint images, the Textbook of Veterinary Physiological Chemistry, Third Edition, proves useful to students and lecturers from diverse educational backgrounds. Sectional exams and case studies, new to this edition, extend the breadth and depth of learning resources. Provides newly developed case studies that demonstrate practical application of concepts Presents comprehensive sectional exams for self-assessment Delivers instructor website with updated PowerPoint images and lecture slides to enhance teaching and learning Employs a succinct communication style in support of quick comprehension
