2. Academic Validation
  3. Exposure to pyrimethanil induces developmental toxicity and cardiotoxicity in zebrafish

Exposure to pyrimethanil induces developmental toxicity and cardiotoxicity in zebrafish

  • Chemosphere. 2020 Sep;255:126889. doi: 10.1016/j.chemosphere.2020.126889.
Yunlong Meng 1,  Keyuan Zhong 2,  Juhua Xiao 3,  Yong Huang 1,  You Wei 1,  Lin Tang 2,  Suping Chen 2,  Juan Wu 2,  Jinze Ma 2,  Zigang Cao 4,  Xinjun Liao 4,  Huiqiang Lu 5
Affiliations

Affiliations

  • 1 Center for Drug Screening and Research, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou, 341000, Jiangxi, China; College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, Jiangxi, China.
  • 2 Center for Drug Screening and Research, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou, 341000, Jiangxi, China.
  • 3 Department of Ultrasound, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, 330006, Jiangxi, China.
  • 4 Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, 343009, Jiangxi, China; Jiangxi Key Laboratory of Developmental Biology of Organs, Ji'an, 343009, Jiangxi, China.
  • 5 Center for Drug Screening and Research, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou, 341000, Jiangxi, China; College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, 343009, Jiangxi, China; Jiangxi Key Laboratory of Developmental Biology of Organs, Ji'an, 343009, Jiangxi, China. Electronic address: luhq2@126.com.
PMID: 32388256 DOI: 10.1016/j.chemosphere.2020.126889
Abstract

Pyrimethanil is a broad-spectrum fungicide commonly used in the prevention and treatment of Botrytis cinerea. However, little information is available in the literature to show the toxicity of Pyrimethanil to cardiac development. In this study, we used an experimental animal model to explore the developmental and cardiac toxicity of Pyrimethanil in aquatic vertebrates; we exposed zebrafish embryos to Pyrimethanil at concentrations of 2, 4, and 6 mg/L from 5.5 to 72 h post fertilisation. We found that Pyrimethanil caused a decrease in the hatching rate, heart rate, and survival rate of zebrafish embryos. Pyrimethanil exposure also resulted in pericardial and yolk sac edema, spinal deformity, and heart loop failure. Moreover, Pyrimethanil increased reactive oxygen stress levels and heightened the activity of superoxide dismutase and catalase. Alterations were induced in the transcription of apoptosis-related genes (p53, Bax, Bcl2, Casp 9, and Casp6l1) and heart development-related genes (Tbx2b, Gata4, Myh6, Vmhc, Nppa, Bmp2b, Bpm 4, and Bpm 10). Our data showed that the activation of Wnt signalling by BML-284 could partially rescue the malformed phenotype caused by Pyrimethanil. Our results provide new evidence for Pyrimethanil's toxicity and the danger of its residues in the environment and agricultural products.

Keywords

Cardiotoxicity; Developmental toxicity; Pyrimethanil; Wnt signalling pathway; Zebrafish.

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