Combined toxic effects of polyethylene microplastics and lambda-cyhalothrin on gut of zebrafish (Danio rerio).

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  • Additional Information
    • Source:
      Publisher: Elsevier Country of Publication: Netherlands NLM ID: 7805381 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1090-2414 (Electronic) Linking ISSN: 01476513 NLM ISO Abbreviation: Ecotoxicol Environ Saf Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam, Netherlands : Elsevier
    • Subject Terms:
      Zebrafish* ; Pyrethrins*/toxicity ; Nitriles*/toxicity ; Microplastics*/toxicity ; Water Pollutants, Chemical*/toxicity ; Oxidative Stress*/drug effects ; Gastrointestinal Microbiome*/drug effects ; Polyethylene*/toxicity; Animals ; Adsorption
    • Abstract:
      Microplastics (MPs), which are prevalent and increasingly accumulating in aquatic environments. Other pollutants coexist with MPs in the water, such as pesticides, and may be carried or transferred to aquatic organisms, posing unpredictable ecological risks. This study sought to assess the adsorption of lambda-cyhalothrin (LCT) by virgin and aged polyethylene MPs (VPE and APE, respectively), and to examine their influence on LCT's toxicity in zebrafish, specifically regarding acute toxicity, oxidative stress, gut microbiota and immunity. The adsorption results showed that VPE and APE could adsorb LCT, with adsorption capacities of 34.4 mg∙g -1 and 39.0 mg∙g -1 , respectively. Compared with LCT exposure alone, VPE and APE increased the acute toxicity of LCT to zebrafish. Additionally, exposure to LCT and PE-MPs alone can induce oxidative stress in the zebrafish gut, while combined exposure can exacerbate the oxidative stress response and intensify intestinal lipid peroxidation. Moreover, exposure to LCT or PE-MPs alone promotes inflammation, and combined exposure leads to downregulation of the myd88-nf-κb related gene expression, thus impacting intestinal immunity. Furthermore, exposure to APE increased LCT toxicity to zebrafish more than VPE. Meanwhile, exposure to PE-MPs and LCT alone or in combination has the potential to affect gut microbiota function and alter the abundance and diversity of the zebrafish gut flora. Collectively, the presence of PE-MPs may affect the toxicity of pesticides in zebrafish. The findings emphasize the importance of studying the interaction between MPs and pesticides in the aquatic environment.
      Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
      (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
    • Contributed Indexing:
      Keywords: Gut flora; Immunity; Polyethylene microplastics; Zebrafish (Danio rerio); lambda-cyhalothrin
    • Accession Number:
      0 (Pyrethrins)
      V0V73PEB8M (cyhalothrin)
      0 (Nitriles)
      0 (Microplastics)
      0 (Water Pollutants, Chemical)
      9002-88-4 (Polyethylene)
    • Publication Date:
      Date Created: 20240409 Date Completed: 20240426 Latest Revision: 20240426
    • Publication Date:
      20240427
    • Accession Number:
      10.1016/j.ecoenv.2024.116296
    • Accession Number:
      38593498