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Brief guidelines for zebrafish embryotoxicity tests
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Researchers published step-by-step guidelines for using zebrafish embryos as a model to test the toxicity of environmental pollutants including nanoplastics, heavy metals, and pesticides, covering everything from breeding methods to measuring physical defects in developing embryos. Zebrafish are a widely used research tool because their transparent embryos develop quickly and share many biological similarities with humans.
There has been growing emphasis on environmental pollutants, including heavy metals, pesticides, and nanoplastics, owing to the escalating significance of environmental pollution as a major global issue. Various toxicities induced by these compounds have been consistently reported, and many cell lines and animal models have been used in toxicity studies. Zebrafish are one of the most widely used animal models for verifying the toxic effects of environmental pollutants, owing to their many advantages. In this study, we provide brief guidelines for zebrafish maintenance and mating methods, toxicant treatments, survival measurements, and morphological abnormalities.
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This review highlights zebrafish as an increasingly valuable model organism for studying the toxic effects of micro- and nanoplastics due to their transparent embryos, genetic similarity to humans, and ease of laboratory use. Researchers summarized existing zebrafish studies showing that plastic particles can cross biological barriers and accumulate in tissues, causing various toxic effects. The study positions zebrafish research as a key tool for advancing our understanding of how plastic particle exposure affects living organisms.
Zebrafish embryos as a biological model to study the effects of nanoplastics
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This study used zebrafish embryos as a model system to investigate the toxic effects of nanoplastics, finding developmental disruptions at concentrations relevant to environmental exposure. Zebrafish embryos are a widely used model because their transparency allows direct visualization of organ development during toxicant exposure.
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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.
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This review summarises zebrafish studies on the toxicity of nanoplastics and microplastics, covering developmental, reproductive, neurological, and organ-level effects. It discusses how findings in this widely used model organism may predict human health outcomes and calls for standardised exposure protocols.
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This review summarizes research on how micro- and nanoplastics harm embryo development using zebrafish as a model organism that shares genetic similarities with humans. Studies show these tiny plastic particles cause damage to the brain, heart, gut, and immune system of developing embryos, largely through oxidative stress and cell death pathways.
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