ArticleNeurobiology of aging2023
Extracellular matrix proteoglycans support aged hippocampus networks: a potential cellular-level mechanism of brain reserve.
Article in Neurobiology of aging, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 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.
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Who cites it
6 citing papers in PubMed, 5 citations in OpenAlex.
- Standardized Extract of Ginkgo biloba L. Reverses Memory Impairment in Older Female Mice with Basal Forebrain Cholinergic Dysfunction.Neurochemical research · 2026Article
- Inhibition of aerobic glycolysis suppresses ferroptosis via activation of the AMPK-FoxO3a pathway in epileptic rats.Molecular biology reports · 2026Article
- Age-related synaptic signatures of brain and cognitive reserve in the rat hippocampus and parahippocampal regions.Neurobiology of aging · 2025Article
- Increased levels of extracellular matrix proteins associated with extracellular vesicles from brains of aged mice.Aging cell · 2025Article
- From molecules to behavior: Implications for perineuronal net remodeling in learning and memory.Journal of neurochemistry · 2024Review
- Human Alzheimer's Disease ATN/ABC Staging Applied to Aging Rhesus Macaque Brains: Association With Cognition and MRI-Based Regional Gray Matter Volume.The Journal of comparative neurology · 2024Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
One hallmark of normative brain aging is vast heterogeneity in whether older people succumb to or resist cognitive decline. Resilience describes a brain's capacity to maintain cognition in the face of aging and disease. One factor influencing resilience is brain reserve-the status of neurobiological resources available to support neuronal circuits as dysfunction accumulates. This study uses a cohort of behaviorally characterized adult, middle-aged, and aged rats to test whether neurobiological factors that protect inhibitory neurotransmission and synapse function represent key components of brain reserve. Histochemical analysis of extracellular matrix proteoglycans, which play critical roles in stabilizing synapses and modulating inhibitory neuron excitability, was conducted alongside analyses of lipofuscin-associated autofluorescence. The findings indicate that aging results in lower proteoglycan density and more lipofuscin in CA3. Aged rats with higher proteoglycan density exhibited better performance on the Morris watermaze, whereas lipofuscin abundance was not related to spatial memory. These data suggest that the local environment around neurons may protect against synapse dysfunction or hyperexcitability and could contribute to brain reserve mechanisms.
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Registered trials
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