ArticleNeuroscience letters2021
Cortical alpha-synuclein preformed fibrils do not affect interval timing in mice.
Article in Neuroscience letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06984757 (Mid-frontal Delta/Theta and Cognitive Control), which is not on this map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Mid-frontal Delta/Theta and Cognitive Control
Who cites it
9 citing papers in PubMed, 14 citations in OpenAlex.
- Role of α-Synuclein in the Prefrontal Cortex: From Physiological Synaptic Modulation to Synaptic Failure in Parkinson's Disease.Biomedicines · 2026Review
- Article
- Mice Expressing A53T/A30P Mutant Alpha-Synuclein in Dopamine Neurons Do Not Display Behavioral Deficits.eNeuro · 2024Article
- Alpha-Synuclein Pre-Formed Fibrils Injected into Prefrontal Cortex Primarily Spread to Cortical and Subcortical Structures.Journal of Parkinson's disease · 2024Article
- Cognitive dysfunction in animal models of human lewy-body dementia.Frontiers in aging neuroscience · 2024Review
- Cortical Lewy body injections induce long-distance pathogenic alterations in the non-human primate brain.NPJ Parkinson's disease · 2023Article
- Hippocampal subfield vulnerability to α-synuclein pathology precedes neurodegeneration and cognitive dysfunction.NPJ Parkinson's disease · 2023Article
- Alpha-synuclein pre-formed fibrils injected into prefrontal cortex primarily spread to cortical and subcortical structures and lead to isolated behavioral symptoms.bioRxiv : the preprint server for biology · 2023Article
- Hippocampal subfield vulnerability to α-synuclein pathology precedes neurodegeneration and cognitive dysfunction.bioRxiv : the preprint server for biology · 2023Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
One hallmark feature of Parkinson's disease (PD) is Lewy body pathology associated with misfolded alpha-synuclein. Previous studies have shown that striatal injection of alpha-synuclein preformed fibrils (PFF) can induce misfolding and aggregation of native alpha-synuclein in a prion-like manner, leading to cell death and motor dysfunction in mouse models. Here, we tested whether alpha-synuclein PFFs injected into the medial prefrontal cortex results in deficits in interval timing, a cognitive task which is disrupted in human PD patients and in rodent models of PD. We injected PFF or monomers of human alpha-synuclein into the medial prefrontal cortex of mice pre-injected with adeno-associated virus (AAV) coding for overexpression of human alpha-synuclein or control protein. Despite notable medial prefrontal cortical synucleinopathy, we did not observe consistent deficits in fixed-interval timing. These results suggest that cortical alpha-synuclein does not reliably disrupt fixed-interval timing.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.