ArticleNature communications2023
Mitochondrial malfunction and atrophy of astrocytes in the aged human cerebral cortex.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 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
57 citing papers in PubMed, 79 citations in OpenAlex.
- Context-Dependent modulation of astrocytic CaJournal of computational neuroscience · 2026Article
- Astrocyte Senescence Disrupts the Extracellular Mitochondrial Compartment and Compromises Bioenergetic Support to Human Neurons.Antioxidants (Basel, Switzerland) · 2026Article
- Genetic Deletion of Adenosine AGlia · 2026Article
- Written in the Stars: Astrocyte Biology From Evolution to Disease.Acta physiologica (Oxford, England) · 2026Review
- Perisynaptic Astrocytic Processes as Communication Hubs and Early Sites of Dysfunction.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2026Review
- Illuminating aging with multimodal optical metabolic imaging.Science advances · 2026Review
- Role Shift of Glial Cells from Physiology to Pathology in Alzheimer's Disease: The Regulatory Impact of Exercise.Neuroscience bulletin · 2026Review
- Intercellular Mitochondrial Transfer as Endogenous Neuroprotection: Mechanisms and Therapeutic Implications in Ischemic Stroke.Translational stroke research · 2026Review
- PINK1/Parkin-dependent mitophagy mediates astrocytic inflammatory responses to mitochondrial damage.bioRxiv : the preprint server for biology · 2026Article
- Mitochondrial Network Dynamics in Aging: Cellular Mechanisms, Intercellular Communication, and Their Impact on Tissue Adaptability.International journal of molecular sciences · 2026Review
- Curing the brain: in search for new astrocyte-specific therapies.Experimental & molecular medicine · 2026Review
- Molecular Mechanisms of Accelerated Ageing in Geriatric Depression: Interplay of Telomere Attrition, Mitochondrial Dysfunction and Cellular Senescence.International journal of molecular sciences · 2026Review
- Dysregulation of Immune Mediators and Synaptic Plasticity in Central Nervous System Disorders.Cells · 2026Review
- Glial and Neuronal Alzheimer's Disease-Related Alterations Reproduced in Human Induced Pluripotent Stem Cells With Presenilin-1 Mutation.Research square · 2026Article
- Senescent Astrocytes: A New Player in Brain Aging and Cognitive Decline.Brain sciences · 2026Review
- Entorhinal cortex atrophy mediates the association of plasma p-tau181, GFAP, and NfL with cognitive impairment in Parkinson's disease.Frontiers in aging neuroscience · 2026Article
- ALDH1/2 deficiency modulates dieldrin-induced dopaminergic neurodegeneration and reactive glial morphometry in male mice.Frontiers in toxicology · 2026Article
- Astrocytic Sox9 overexpression in Alzheimer's disease mouse models promotes Aβ plaque phagocytosis and preserves cognitive function.Nature neuroscience · 2026Article
- Astrocyte Ezrin defines resilience to stress-induced depressive behaviours in mice.National science review · 2026Article
- Systematic profiling reveals distinct senescence signatures and regulators across human brain cell types.Nature communications · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors at 7 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
How aging affects cells of the human brain active milieu remains largely unknown. Here, we analyze astrocytes and neurons in the neocortical tissue of younger (22-50 years) and older (51-72 years) adults. Aging decreases the amount of reduced mitochondrial cytochromes in astrocytes but not neurons. The protein-to-lipid ratio decreases in astrocytes and increases in neurons. Aged astrocytes show morphological atrophy quantified by the decreased length of branches, decreased volume fraction of leaflets, and shrinkage of the anatomical domain. Atrophy correlates with the loss of gap junction coupling between astrocytes and increased input resistance. Aging is accompanied by the upregulation of glial fibrillary acidic protein (GFAP) and downregulation of membrane-cytoskeleton linker ezrin associated with leaflets. No significant changes in neuronal excitability or spontaneous inhibitory postsynaptic signaling is observed. Thus, brain aging is associated with the impaired morphological presence and mitochondrial malfunction of cortical astrocytes, but not neurons.
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.