ArticleFrontiers in cellular neuroscience2025
Rotenone accelerates endogenous α-synuclein spreading and enhances neurodegeneration in an intra-striatal α-synuclein preformed fibril injected mouse model of Parkinson's disease.
Article in Frontiers in cellular neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- A Live-Cell Imaging System for the Identification of Pro- and Anti-Aggregatory α-Synuclein Modulators.Molecular neurobiology · 2026Article
- α-Synuclein pathology differentially alters T-type calcium currents in vulnerable and resilient substantia nigra dopaminergic subpopulations.bioRxiv : the preprint server for biology · 2026Article
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Abstract
Prominent histopathological features of Parkinson's disease (PD) include the presence of Lewy bodies, intra-neural protein aggregates mainly composed of α-synuclein (α-syn), and cell death of dopaminergic neurons. Epidemiological studies have revealed a correlation between exposure to environmental neurotoxins, such as rotenone, and an increased risk of developing PD. In this study, we evaluated the role of rotenone in α-syn spreading and accumulation, with the aim of developing a mouse model of accelerated PD. Human α-synuclein pre-formed fibrils (PFF) were injected into the mouse striatum by stereotactic surgery. Rotenone (2.5 mg/kg-body-weight) was administered intraperitoneally once daily for four consecutive weeks one day or three weeks after the PFF injection. Brains were collected twenty-four hours after the last injection for immunohistochemical analysis. In this study, rotenone significantly synergized PFF induced α-syn spreading, neuroinflammation, in addition to augmented loss of dopaminergic neurons along the nigrostriatal pathway.
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