Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 241 The Larval Amphibian Growth and Development Assay LAGDA written by OECD and published by OECD Publishing. This book was released on 2015-07-28 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes the Medaka Extended One Generation Test (MEOGRT), which exposes fish over multiple generations to give data relevant to ecological hazard and risk assessment of chemicals, including suspected endocrine disrupting chemicals (EDCs). Exposure in the MEOGRT starts with ...
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 231 Amphibian Metamorphosis Assay written by OECD and published by OECD Publishing. This book was released on 2009-09-08 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes an amphibian metamorphosis assay intended to screen substances which may interfere with the normal functioning of the hypothalamo-pituitary-thyroid axis. The assay was validated with the species Xenopus laevis, which is ...
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 248 Xenopus Eleutheroembryonic Thyroid Assay XETA written by OECD and published by OECD Publishing. This book was released on 2019-06-18 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the test is to measure the capacity of a chemical to activate or inhibit the transcription of a genetic construct (THb/ZIP-GFP X. laevis eleutheroembryos) either by binding to the thyroid hormone receptor or by modifying the amount of thyroid hormone available for transcription. The test is based on the use of a transgenic frog (possessing the genetic construction THb/ZIP-GFP) of the species X. laevis. GFP is a fluorescent protein that can be used to affirm the presence of the substance and to follow its action. This test is based on the quantification of fluorescence, and thus of the GFP protein, throughout the eleutheroembryo exposed to a test chemical. Indeed, if the fluorescence is > 12% by including the highest concentration of the test, the test is considered positive. Organisms are exposed in chemically inert cell culture plates (6 wells). Each well contains ten organisms in solution. In a run, 20 organisms are exposed to each test concentration. Tadpoles are exposed to the test chemical at NF stage 45 for a duration of 72 hours. A positive result of the XETA test indicates in vivo that a substance induces damage to the receptor and metabolization of the thyroid hormone. A negative result indicates that, under test conditions, the test substance does not induce detectable damage to the thyroid and its functioning.
Download or read book Aquatic Toxicology in Freshwater written by Muhammed Atamanalp and published by Springer Nature. This book was released on with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 210 Fish Early life Stage Toxicity Test written by OECD and published by OECD Publishing. This book was released on 2013-07-26 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test method described in this Test Guideline, is intended to define the lethal and sub-lethal effects of chemicals on the early life stages of the species tested. The early-life stages of fish are exposed to five concentrations of the test ...
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 249 Fish Cell Line Acute Toxicity The RTgill W1 cell line assay written by OECD and published by OECD Publishing. This book was released on 2021-06-18 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The RTgill-W1 cell line assay describes a 24-well plate format fish cell line acute toxicity test using the permanent cell line from rainbow trout (Oncorhynchus mykiss) gill, RTgill-W1. After 24 h of exposure to the test chemical, cell viability is assessed based on three fluorescent cell viability indicator dyes, measured on the same set of cells. Resazurin enters the cells in its non-fluorescent form and is converted to the fluorescent product, resorufin, by mitochondrial, microsomal or cytoplasmic oxidoreductases.
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 221 Lemna sp Growth Inhibition Test written by OECD and published by OECD Publishing. This book was released on 2006-07-11 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed to assess the toxicity of substances to freshwater aquatic plants of the genus Lemna (duckweed). Exponentially growing plant cultures of the genus Lemna (Lemna gibba and Lemna minor usually) are allowed to grow as ...
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 223 Avian Acute Oral Toxicity Test written by OECD and published by OECD Publishing. This book was released on 2016-07-29 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes procedures designed to estimate the acute oral toxicity of substances to birds, and it provides three testing options: (1) limit dose test, (2) LD50-slope test, and (3) LD50-only test. The LD50-slope and LD50-only options are sequential testing procedures.
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 232 Collembolan Reproduction Test in Soil written by OECD and published by OECD Publishing. This book was released on 2016-07-29 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed for assessing the effects of chemicals on the reproduction of collembolans in soil.
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 237 Honey Bee Apis Mellifera Larval Toxicity Test Single Exposure written by OECD and published by OECD Publishing. This book was released on 2013-07-26 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline (TG) describes a honey bee brood acute toxicity test under laboratory conditions. The method aims at the determination of the lethal dose (72-h LD50) following single exposure of larvae to a chemical. On day 1 (D1) of the study ...
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 251 Rapid Androgen Disruption Activity Reporter RADAR assay written by OECD and published by OECD Publishing. This book was released on 2022-06-30 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Rapid Androgen Disruption Activity Reporter (RADAR) Test Guideline describes an aquatic assay that utilizes transgenic Oryzias latipes (O. latipes, Japanese medaka) eleutheroembryos at day post hatch zero, in a multi-well format to detect chemicals active on the androgen axis.
Download or read book Environmental Risk Analysis for Asian Oriented Risk Based Watershed Management written by Minoru Yoneda and published by Springer. This book was released on 2018-05-07 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is a practical guidebook on environmental risk assessment, especially for watershed-scale management. It highlights case studies of watershed environmental risk in Malaysia, including the potential health risks as well as screening methods and management in practice. In order to apply environmental risk assessment methods for the management of toxic chemicals, it is necessary to consider the geological and climate features of each country as well as their cultural characteristics. Focusing on Malaysia as a representative country, the book also discusses studies in other Asian countries. The insights provided can be applied to advanced and developing countries alike. A suitable textbook for graduate students, it is also a valuable reference source for researchers, practitioners and policymakers.
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 208 Terrestrial Plant Test Seedling Emergence and Seedling Growth Test written by OECD and published by OECD Publishing. This book was released on 2006-08-17 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed to assess effects on seedling emergence and early growth of higher plants following exposure to the test substance applied to the soil surface or into the soil. Seeds are placed in contact with soil treated with the ...
Download or read book OECD Guidelines for the Testing of Chemicals Section 2 Test No 225 Sediment Water Lumbriculus Toxicity Test Using Spiked Sediment written by OECD and published by OECD Publishing. This book was released on 2007-10-15 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed to assess the effects of prolonged exposure to sediment-associated chemicals on the reproduction and the biomass of the endobenthic oligochaete Lumbriculus variegatus (Müller). The method is described for static test ...
Download or read book Guidance Document on Standardised Test Guidelines for Evaluating Chemicals for Endocrine Disruption written by OECD and published by OECD Publishing. This book was released on 2014-09-03 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a tool to support regulatory authorities’ decisions on the hazard of specific chemicals when they receive test results from a Test Guideline (TG) or draft TG for the screening/testing of chemicals for endocrine disrupting properties.
Download or read book OECD Series on Testing and Assessment Revised Guidance Document 150 on Standardised Test Guidelines for Evaluating Chemicals for Endocrine Disruption written by OECD and published by OECD Publishing. This book was released on 2018-09-03 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidance document was originally published in 2012 and updated in 2018 to reflect new and updated OECD test guidelines, as well as reflect on scientific advances in the use of test methods and assessment of the endocrine activity of chemicals.
Download or read book Comprehensive Toxicology written by and published by Elsevier. This book was released on 2017-12-01 with total page 8639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Toxicology, Third Edition, Fifteen Volume Set discusses chemical effects on biological systems, with a focus on understanding the mechanisms by which chemicals induce adverse health effects. Organized by organ system, this comprehensive reference work addresses the toxicological effects of chemicals on the immune system, the hematopoietic system, cardiovascular system, respiratory system, hepatic toxicology, renal toxicology, gastrointestinal toxicology, reproductive and endocrine toxicology, neuro and behavioral toxicology, developmental toxicology and carcinogenesis, also including critical sections that cover the general principles of toxicology, cellular and molecular toxicology, biotransformation and toxicology testing and evaluation. Each section is examined in state-of-the-art chapters written by domain experts, providing key information to support the investigations of researchers across the medical, veterinary, food, environment and chemical research industries, and national and international regulatory agencies. Thoroughly revised and expanded to 15 volumes that include the latest advances in research, and uniquely organized by organ system for ease of reference and diagnosis, this new edition is an essential reference for researchers of toxicology. Organized to cover both the fundamental principles of toxicology and unique aspects of major organ systems Thoroughly revised to include the latest advances in the toxicological effects of chemicals on the immune system Features additional coverage throughout and a new volume on toxicology of the hematopoietic system Presents in-depth, comprehensive coverage from an international author base of domain experts
