Effects of Flurochloridone on the Developmental Toxicity in Zebrafish (Danio rerio) Embryo.

IF 4.4 3区 医学 Q2 ENVIRONMENTAL SCIENCES Environmental Toxicology Pub Date : 2024-12-10 DOI:10.1002/tox.24460
Mingjun Yang, Jingying Hu, Fang Tian, Minjie Xia, Zhijun Zhou, Weihua Li
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Abstract

Flurochloridone (FLC) is a selective herbicide that can cause reproductive toxicity in male rats. However, limited information is available regarding the toxicity of FLC in the developmental stages of aquatic organisms. This study aimed to investigate the effects of FLC exposure during embryonic development and elucidate its potential mechanism of action. Zebrafish embryos were exposed to 6.25, 12.5, 25, and 50 μg/mL FLC for 4-144 hpf. The developmental status of embryos was recorded; the indicators of oxidative stress and embryonic apoptosis were determined. We found that FLC exposure caused severe embryonic malformations, such as pericardial edema, spinal curvature, and growth retardation, accompanied by a decreased hatching and survival rate. After exposure until 144 h postfertilization, the median lethal concentration (LC50) of FLC in zebrafish embryos was 36.9 μg/mL. Subsequently, FLC induced the accumulation of reactive oxygen species and malondialdehyde, enhanced the activity of superoxide dismutase, and activated the Keap1-Nrf2 signaling pathway. Further studies confirmed that FLC can induce apoptosis in zebrafish embryos through the activation of caspase. These results suggest that FLC induced developmental toxicity in zebrafish embryos, which provides new evidence regarding FLC toxicity in aquatic organisms and to assess human health risks.

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氟氯酮对斑马鱼(Danio rerio)胚胎发育毒性的影响
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来源期刊
Environmental Toxicology
Environmental Toxicology 环境科学-毒理学
CiteScore
7.10
自引率
8.90%
发文量
261
审稿时长
4.5 months
期刊介绍: The journal publishes in the areas of toxicity and toxicology of environmental pollutants in air, dust, sediment, soil and water, and natural toxins in the environment.Of particular interest are: Toxic or biologically disruptive impacts of anthropogenic chemicals such as pharmaceuticals, industrial organics, agricultural chemicals, and by-products such as chlorinated compounds from water disinfection and waste incineration; Natural toxins and their impacts; Biotransformation and metabolism of toxigenic compounds, food chains for toxin accumulation or biodegradation; Assays of toxicity, endocrine disruption, mutagenicity, carcinogenicity, ecosystem impact and health hazard; Environmental and public health risk assessment, environmental guidelines, environmental policy for toxicants.
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