Author: European Society of Toxicology
Publisher:
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Category :
Languages : en
Pages :

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Author: Jürg P. Seiler
Publisher: Springer
ISBN: 9783540622116
Category : Medical
Languages : en
Pages : 438

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Ultraviolet radiation, a component of sunlight, has been recognized by photobiologists, dermatologists, and oculists as a potential hazard for human health because of its genotoxic, carcinogenic and immunotoxic properties. Its effects on human health include the induction of skin cancers, ocular damage and impairment of immunity to certain infections. A few decennia ago it was demonstrated that UV photons can affect the activity of the immune system through interactions with the skin. This means that UV not only changes normal cells into cancer cells but also permits the outgrowth of the UV -transformed cells by depressing the immune system. An intriguing question is what interactions between UV radiation and the skin initiates alterations in immune function in the exposed skin and systemically, i. e. in other places than the exposed skin. During the last 20 years many studies have been performed in order to investigate the immunosuppressive activities of UVB in laboratory animals and in human volunteers. In particular effects of UVB radiation on resistance to tumours and skin associated infections have been examined. In addition, effects of UVB radiation on immune parameters such as contact hypersensitivity and delayed-type hypersensitivity (both type IV hypersensitivity reactions), mixed lymphocyte reactions, mixed skin lymphocyte reactions, antigen presentation and numbers and function of Langerhans cells have been studied intensively. The antigenicity of murine tumours which are caused by UVB radiation was one of the first items to be investigated (Kripke, 1974).

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Languages : en
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Author: Carey N. Pope
Publisher: Academic Press
ISBN: 0128136022
Category : Medical
Languages : en
Pages : 644

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An Introduction to Interdisciplinary Toxicology: From Molecules to Man integrates the various aspects of toxicology, from "simple” molecular systems, to complex human communities, with expertise from a spectrum of interacting disciplines. Chapters are written by specialists within a given subject, such as a chemical engineer, nutritional scientist, or a microbiologist, so subjects are clearly explained and discussed within the toxicology context. Many chapters are comparative across species so that students in ecotoxicology learn mammalian toxicology and vice versa. Specific citations, further reading, study questions, and other learning features are also included. The book allows students to concurrently learn concepts in both biomedical and environmental toxicology fields, thus better equipping them for the many career opportunities toxicology provides. This book will also be useful to those wishing to reference how disciplines interact within the broad field of toxicology. Covers major topics and newer areas in toxicology, including nanotoxicology, Tox21, epigenetic toxicology, and organ-specific toxicity Includes a variety of perspectives to give a complete understanding of toxicology Written by specialists within each subject area, e.g., a chemical engineer, to ensure concepts are clearly explained

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Languages : en
Pages : 0

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Languages : de
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Author: Thomas A Gossel
Publisher: CRC Press
ISBN: 9780781701259
Category : Medical
Languages : en
Pages : 464

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In this third edition, the editors have accounted for the numerous changes in protocols for managing poison ingestions and have again provided an indispensable resource for all students of pharmacy and the health sciences on the basic principles of clinical toxicology. The book's unique focus on the fundamentals helps the reader understand why events occur and why a particular treatment is selected. Each chapter presents pertinent information on classes of toxic agents, their common sources and usual methods of intoxication, incidence and frequency of poisoning, mechanisms of action, clinical signs and symptoms of poisoning and management guidance. The text includes illustrative case studies, carefully selected to reinforce the information covered. Each chapter concludes with review questions to further enhance comprehension.

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Languages : en
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Languages : de
Pages : 0

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Languages : en
Pages : 0

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