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Research progress of model animal zebrafish in toxicity evaluation of microplastics
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This review examines the use of zebrafish as a model organism for evaluating the toxicity of microplastics, synthesizing research on how microplastic exposure affects development, reproduction, and physiological function in this well-established vertebrate model. The authors highlight zebrafish as a particularly valuable system for mechanistic toxicology studies given its genetic tractability and the breadth of endpoints assessable across life stages.
With the extensive use of plastic products and the sharp increase of plastic waste, microplastics produced by degradation in the natural environment and artificially added by industry have been detected in food, air, ocean, and even extreme geographical environment. The environmental pollution and the biological health hazards caused by this new type of pollutant has become a global scientific problem to be solved urgently. Zebrafish (Danio rerio), as a typical model organism, has been widely used to evaluate the environmental pollution and health hazards caused by microplastics. This review on the research progress of model animal zebrafish in toxicity evaluation of microplastics mainly emphasized the toxic effects of microplastics on selected organs of zebrafish, briefly introduced the influencing factors of toxicity induced by microplastics, discussed the standardization of experiments for the evaluation of microplastic toxicity using zebrafish, and finally explored the future research directions.
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