期刊
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
卷 40, 期 4, 页码 989-1006出版社
WILEY
DOI: 10.1002/etc.4951
关键词
Neurotoxicity; Behavioral toxicology; Ecotoxicology; Toxicity mechanism; Teleost
资金
- Eawag, Swiss Federal Institute of Aquatic Science and Technology
The occurrence of neuroactive chemicals in the aquatic environment is increasing and poses a potential threat to aquatic biota. Zebrafish as a model organism provides a powerful tool for studying neurotoxicity and understanding the mechanisms of action of chemicals on teleost nervous systems from different perspectives. This knowledge can help infer potential effects on other species and predict risks of chemicals for the aquatic ecosystem.
The occurrence of neuroactive chemicals in the aquatic environment is on the rise and poses a potential threat to aquatic biota of currently unpredictable outcome. In particular, subtle changes caused by these chemicals to an organism's sensation or behavior are difficult to tackle with current test systems that focus on rodents or with in vitro test systems that omit whole-animal responses. In recent years, the zebrafish (Danio rerio) has become a popular model organism for toxicological studies and testing strategies, such as the standardized use of zebrafish early life stages in the Organisation for Economic Co-operation and Development's guideline 236. In terms of neurotoxicity, the zebrafish provides a powerful model to investigate changes to the nervous system from several different angles, offering the ability to tackle the mechanisms of action of chemicals in detail. The mechanistic understanding gained through the analysis of this model species provides a good basic knowledge of how neuroactive chemicals might interact with a teleost nervous system. Such information can help infer potential effects occurring to other species exposed to neuroactive chemicals in their aquatic environment and predicting potential risks of a chemical for the aquatic ecosystem. In the present article, we highlight approaches ranging from behavioral to structural, functional, and molecular analysis of the larval zebrafish nervous system, providing a holistic view of potential neurotoxic outcomes. Environ Toxicol Chem 2021;00:1-18. (c) 2020 SETAC
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