ArticleNeurobiology of aging2020
Age-related memory deficits are associated with changes in protein degradation in brain regions critical for trace fear conditioning.
Article in Neurobiology of aging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 18 citations in OpenAlex.
- Molecular pathways underlying amyloid precursor protein-mediated regulation of adult-born neurons.Neural regeneration research · 2026Article
- The emerging role of ubiquitin-proteasome system dysfunction in the pathogenesis of perioperative neurocognitive disorders: a narrative review.Frontiers in behavioral neuroscience · 2026Review
- Proteomic Insight Into Alzheimer's Disease Pathogenesis Pathways.Proteomics · 2025Review
- Increased DNA methylation of Igf2 in the male hippocampus regulates age-related deficits in synaptic plasticity and memory.Brain research bulletin · 2025Article
- Fear extinction is impaired in aged rats.GeroScience · 2024Article
- Heterogenous effect of early adulthood stress on cognitive aging and synaptic function in the dentate gyrus.Frontiers in molecular neuroscience · 2024Article
- Proteasome-independent K63 polyubiquitination selectively regulates ATP levels and proteasome activity during fear memory formation in the female amygdala.Molecular psychiatry · 2023Article
- T-Type CaInternational journal of molecular sciences · 2021Article
- Proteomic Analysis Reveals Sex-Specific Protein Degradation Targets in the Amygdala During Fear Memory Formation.Frontiers in molecular neuroscience · 2021Article
- Age-Related Memory Impairment and Sex-Specific Alterations in Phosphorylation of the Rpt6 Proteasome Subunit and Polyubiquitination in the Basolateral Amygdala and Medial Prefrontal Cortex.Frontiers in aging neuroscience · 2021Article
- Apoaequorin differentially modulates fear memory in adult and aged rats.Brain and behavior · 2020Article
- Dysregulation of protein degradation in the hippocampus is associated with impaired spatial memory during the development of obesity.Behavioural brain research · 2020Article
- Age-Related Memory Impairment Is Associated with Increased zif268 Protein Accumulation and Decreased Rpt6 Phosphorylation.International journal of molecular sciences · 2020Article
- Differential impacts of advanced age and sex in age-related trace fear memory impairment in rats.Learning & memory (Cold Spring Harbor, N.Y.)Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Brain aging is accompanied by an accumulation of damaged proteins, which results from deterioration of cellular quality control mechanisms and decreased protein degradation. The ubiquitin-proteasome system (UPS) is the primary proteolytic mechanism responsible for targeted degradation. Recent work has established a critical role of the UPS in memory and synaptic plasticity, but the role of the UPS in age-related cognitive decline remains poorly understood. Here, we measured markers of UPS function and related them to fear memory in rats. Our results show that age-related memory deficits are associated with reductions in phosphorylation of the Rpt6 proteasome regulatory subunit and corresponding increases in lysine-48 (K48)-linked ubiquitin tagging within the basolateral amygdala. Increases in K48 polyubiquitination were also observed in the medial prefrontal cortex and dorsal hippocampus. These data suggest that protein degradation is a critical component of age-related memory deficits. This extends our understanding of the relationship between the UPS, aging, and memory, which is an important step toward the prevention and treatment of deficits associated with normal cognitive aging and memory-related neurodegenerative diseases.
Indexed as
Identifiers
What OpenQuestion holds
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 OpenQuestion graph.