ArticleNeurobiology of aging2012
Interneuron loss reduces dendritic inhibition and GABA release in hippocampus of aged rats.
Article in Neurobiology of aging, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.
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
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Who cites it
74 citing papers in PubMed, 1 synthesis or guideline pooled it, 134 citations in OpenAlex.
- Pooled it
- Genetic Deletion of Adenosine AGlia · 2026Article
- GABA and Glx Distinctively Predict Motor Learning and Retention in Young and Older Adults.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- spRefine denoises and imputes spatial transcriptomic data with a reference-free framework powered by genomic language model.Genome research · 2026Article
- Genetic deletion of adenosine AGeroScience · 2026Article
- Neurochemical changes in GABA+, Glx, and the excitatory/inhibitory ratio in the calcarine cortex with healthy aging.NeuroImage · 2025Article
- spRefine Denoises and Imputes Spatial Transcriptomics with a Reference-Free Framework Powered by Genomic Language Model.bioRxiv : the preprint server for biology · 2025Article
- Estrogenic regulation of hippocampal inhibitory system across lifespan.Journal of neuroendocrinology · 2025Review
- Age-related differences in resting glutamate levels and glutamate uptake in the hippocampus and frontal cortex of C57BL/6 mice.Neurobiology of aging · 2025Article
- Age-related synaptic signatures of brain and cognitive reserve in the rat hippocampus and parahippocampal regions.Neurobiology of aging · 2025Article
- The role of inhibitory and excitatory neurometabolites in age-related differences in action selection.npj aging · 2025Article
- Article
- Quantification and correlation of amyloid-β plaque load, glial activation, GABAergic interneuron numbers, and cognitive decline in the young TgF344-AD rat model of Alzheimer's disease.Frontiers in aging neuroscience · 2025Article
- Mitigation of aging-related plasticity decline through taurine supplementation and environmental enrichment.Scientific reports · 2024Article
- Parvalbumin-expressing basal forebrain neurons mediate learning from negative experience.Nature communications · 2024Article
- GABA levels decline with age: A longitudinal study.Imaging neuroscience (Cambridge, Mass.) · 2024Article
- Glial dysregulation in the human brain in fragile X-associated tremor/ataxia syndrome.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Review
- The times they are a-changin': a proposal on how brain flexibility goes beyond the obvious to include the concepts of "upward" and "downward" to neuroplasticity.Molecular psychiatry · 2023Review
- Age-related changes in excitatory and inhibitory intra-cortical circuits in auditory cortex of C57Bl/6 mice.Hearing research · 2023Article
14 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Aging is associated with impairments in learning and memory and a greater incidence of limbic seizures. These changes in the aged brain have been associated with increased excitability of hippocampal pyramidal cells caused by a reduced number of gamma-aminobutyric acid-ergic (GABAergic) interneurons. To better understand these issues, we performed cell counts of GABAergic interneurons and examined GABA efflux and GABAergic inhibition in area CA1 of the hippocampus of young (3-5 months) and aged (26-30 months) rats. Aging significantly reduced high K(+)/Ca(2+)-evoked GABA, but not glutamate efflux in area CA1. Immunostaining revealed a significant loss of GABAergic interneurons, but not inhibitory boutons in stratum oriens and stratum lacunosum moleculare. Somatostatin-immunoreactive oriens-lacunosum moleculare (O-LM) cells, but not parvalbumin-containing interneurons were selectively lost. Oriens-lacunosum moleculare cells project to distal dendrites of CA1 pyramidal cells, providing dendritic inhibition. Accordingly, inhibition of dendritic input to CA1 from entorhinal cortex was selectively reduced. These findings suggest that the age-dependent loss of interneurons impairs dendritic inhibition and dysregulates entorhinal cortical input to CA1, potentially contributing to cognitive impairment and seizures.
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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 OpenQuestion graph.