ArticleBasic & clinical pharmacology & toxicology2026
Neuroprotective Effects of Senecio brasiliensis Extract Against Chlorpyrifos-Induced Neurotoxicity and Oxidative Stress in Drosophila melanogaster.
Article in Basic & clinical pharmacology & toxicology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Neuroprotective Effects of Senecio brasiliensis Extract Against Chlorpyrifos-Induced Neurotoxicity and Oxidative Stress in Drosophila melanogaster.Basic & clinical pharmacology & toxicology · 2026Article
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11 authors.
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Abstract
Chlorpyrifos (CP) is an organophosphate insecticide that induces neurotoxicity through acetylcholinesterase (AChE) inhibition and redox imbalance, raising environmental and occupational health concerns. Plant-derived compounds from Senecio brasiliensis, native to the Pampa biome, offer multitarget therapeutic potential. This study evaluated the protective effects of the hydroalcoholic extract of S. brasiliensis (HESB) against CP-induced toxicity in Drosophila melanogaster (Harwich strain). Adult females (3-5 days old) were exposed for 48 h to control (1% sucrose), CP (0.25 ppm), HESB (1 mg/mL) or CP + HESB. CP increased mortality (37.3% ± 6.6%; p < 0.001) and impaired locomotion in the negative geotaxis (17.2 ± 3.0 s; p < 0.001) and footbridge (52.2 ± 5.2 s) assays, decreased AChE, GST and CAT activity (-31.8%, -45.8% and -72.3%, respectively; p = 0.006, 0.025 and 0.006), elevated ROS (+97.0%; p = 0.007), nitrite (+13.1%; p = 0.006) and TBARS (+25.6%; p = 0.010), depleted NPSH (-29.2%; p = 0.003) and PSH (-35.9%; p = 0.013) and reduced cell viability (-17.9%; p = 0.013). HESB co-treatment attenuated all CP-induced alterations, bringing parameters to control-comparable values (p > 0.05). These findings indicate that HESB exerts neuroprotective effects against CP toxicity through modulation of cholinergic function, attenuation of oxidative and nitrosative stress and preservation of thiol homeostasis.
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