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Gao, L.* ; Hao, J.* ; Hua, Z.* ; Zeng, C.* ; Li, J.* ; Zeng, J.

Lipidomics atlas tracks alterations associated with deltamethrin-induced developmental neurotoxicity in embryonic zebrafish.

J. Proteome Res., DOI: 10.1021/acs.jproteome.4c00779 (2025)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Deltamethrin (DM) is a widely used pyrethroid pesticide associated with childhood neurodevelopmental disorders. However, the specific impact of DM exposure during distinct early life stages remains unclear. Here, zebrafish embryos were exposed to DM at different stages: before (10-16 hpf), at the onset of (16-24 hpf), at the peak of (24-36 hpf) hypothalamic neurogenesis, and continuously from 10 to 120 hpf (subchronic exposure), using different dosages (1, 100, and 250 nM). Exposure to middle/high-dose DM at 24-36 and 10-120 hpf significantly reduced zebrafish locomotor activities and increased apoptotic cells in the spinal cord. As a pivotal factor in central nervous system disorder progression, altered lipid metabolism was investigated using nontargeted lipidomic analysis. DM exposure at 10-16 and 24-36 hpf led to the most significant lipidome reprogramming. Despite exhibiting a dose-dependent trend, even low-dose DM changed the lipidome. Cer 40:2;2 and PG 44:12 showed potential in identifying DM exposure effects. Significant changes in sphingolipid, cardiolipin, phosphatidylglycerol, and glycerolipid pathways were linked to DM-induced developmental neurotoxicity, indicating impaired membrane function, mitochondrial damage, and disrupted energy metabolism. Our study sheds new light on assessing early neurodevelopmental disturbances and identifying intervention targets, emphasizing sensitivity to DM during the critical early phase of neurodevelopment.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Deltamethrin ; Developmental Neurotoxicity ; Lipidomics ; Zebrafish; Cardiolipin; Neurogenesis; Mitochondria; Disorders; Exposure
ISSN (print) / ISBN 1535-3893
e-ISSN 1535-3907
Journal Journal of Proteome Research
Publisher American Chemical Society (ACS)
Publishing Place 1155 16th St, Nw, Washington, Dc 20036 Usa
Reviewing status Peer reviewed
Institute(s) Research Unit BioGeoChemistry and Analytics (BGC)
Grants China Scholarship Council
Natural Science Foundation of Xiamen City of China
Natural Science Foundation of Fujian Province of China
National Key R&D Program of China
Natural Science Foundation of Xiamen Municipality