ArticleScientific reports2023
Behavioral, neural and ultrastructural alterations in a graded-dose 6-OHDA mouse model of early-stage Parkinson's disease.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 38 citations in OpenAlex.
- Intranasal 6-OHDA Induces TRPM3-mediated Neuroinflammation in the pVTA: A Preclinical Early-stage Parkinson's Disease Model.Molecular neurobiology · 2026Article
- Age-related susceptibility to paraquat-induced neurotoxicity in male wistar rats: effects on neurobehaviour, substantia nigra cytoarchitecture, and alpha-synuclein levels.BMC neuroscience · 2026Article
- Dapagliflozin ameliorates motor deficits in a Parkinson's disease model induced by 6-OHDA: An integrative in vivo and in silico approach from α-synuclein/A2AAR/TH/TNF-α to APAF-1/caspase-3 modulation.Inflammopharmacology · 2026Article
- TMBIM6 enhances dopaminergic neuron survival by modulating the IRE1a pathway in Parkinson's disease.Cell death & disease · 2026Article
- Lifelong cGAS deficiency leads to altered lipid storage and cholesterol homeostasis.Biological research · 2026Article
- Combination antiviral and anti-inflammatory therapy mitigates persistent neurological deficits in mice post SARS-CoV-2 infection.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Treadmill exercise improves motor deficits and partially normalizes electrophysiological properties of substantia nigra pars reticulata PV-lineage neurons in 6-OHDA-lesioned mice.Frontiers in physiology · 2026Article
- Ultrastructural perspectives on the enteric nervous system in Parkinson's disease.Frontiers in neuroscience · 2026Review
- Focused ultrasound enhances targeted curcumin delivery and alleviates behavioral and neuropathological deficits in a Parkinson's disease mouse model.Frontiers in aging neuroscience · 2026Article
- Ultraviolet radiation and neurodegeneration: molecular mechanisms underlying dual neuroprotective and neurotoxic effects.Frontiers in cellular neuroscience · 2026Review
- Synergistic Effects of Levodopa, Benserazide, and Nortriptyline on Behavioral Impairments and Brain Pathology in an Experimental Rat Model of Parkinson's Disease.Neurology research international · 2026Article
- Electroconvulsive Therapy Induces Dopaminergic Axon Regeneration, Corticostriatal Remodeling, and Restoration of Motor Function in Parkinsonian Mice.bioRxiv : the preprint server for biology · 2025Article
- The Small Molecule DDOX Confers Neuroprotection and Alleviates Motor Deficits in a Preclinical Rat Model of Parkinson's Disease.Neurotoxicity research · 2025Article
- Environmental noise-induced changes to the IC-SNc circuit promotes motor deficits and neuronal vulnerability in a mouse model of Parkinson's Disease.PLoS biology · 2025Article
- Loss of stimulator of interferon genes (STING) promotes accumulation of cholesterol and triglycerides throughout life in mice.Biological research · 2025Article
- Magnetoelectric nanodiscs diminish motor deficits in a model of Parkinson's disease.bioRxiv : the preprint server for biology · 2025Article
- Abnormal iron metabolism in the zona incerta in Parkinson's disease mice.Journal of neural transmission (Vienna, Austria : 1996) · 2025Article
- Chemogenetic Control of Striatal Astrocytes Improves Parkinsonian Motor Deficits in Mice.Glia · 2025Article
- Protective Effect of FABP5 Against 6-OHDA Induced Parkinson's Disease Via PPARγ/SIRT1/PGC-1α Signaling Pathway.Neurochemical research · 2025Article
- Assessment of complementary white matter microstructural changes and grey matter atrophy in the 6-OHDA-induced model of Parkinson's disease.Neuroscience · 2025Article
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Authors and funding
12 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Studying animal models furthers our understanding of Parkinson's disease (PD) pathophysiology by providing tools to investigate detailed molecular, cellular and circuit functions. Different versions of the neurotoxin-based 6-hydroxydopamine (6-OHDA) model of PD have been widely used in rats. However, these models typically assess the result of extensive and definitive dopaminergic lesions that reflect a late stage of PD, leading to a paucity of studies and a consequential gap of knowledge regarding initial stages, in which early interventions would be possible. Additionally, the better availability of genetic tools increasingly shifts the focus of research from rats to mice, but few mouse PD models are available yet. To address these, we characterize here the behavioral, neuronal and ultrastructural features of a graded-dose unilateral, single-injection, striatal 6-OHDA model in mice, focusing on early-stage changes within the first two weeks of lesion induction. We observed early onset, dose-dependent impairments of overall locomotion without substantial deterioration of motor coordination. In accordance, histological evaluation demonstrated a partial, dose-dependent loss of dopaminergic neurons of substantia nigra pars compacta (SNc). Furthermore, electron microscopic analysis revealed degenerative ultrastructural changes in SNc dopaminergic neurons. Our results show that mild ultrastructural and cellular degradation of dopaminergic neurons of the SNc can lead to certain motor deficits shortly after unilateral striatal lesions, suggesting that a unilateral dose-dependent intrastriatal 6-OHDA lesion protocol can serve as a successful model of the early stages of Parkinson's disease in mice.
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