ArticleAntioxidants (Basel, Switzerland)2019
Transmission Electron Microscopy Study of Mitochondria in Aging Brain Synapses.
Article in Antioxidants (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Cognitive Functioning of Unaffected First-degree Relatives of Individuals With Late-onset Alzheimer's Disease: A Systematic Literature Review and Meta-analysis.Neuropsychology review · 2023Pooled it
- Enriched Environment Enhances Motor Function in Mice With Cerebral Infarction by Promoting mTOR-Dependent Autophagy in the Contralateral Dentate Nucleus.The Kaohsiung journal of medical sciences · 2026Article
- Ontological Analysis of Brain Proteostasis Highlights the Sex-Dependent Trajectory of ApoE Isoform-Specific Regulation.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
- Synaptic aging and neurodegeneration: the role of synaptic vesicle dynamics and neurotransmitter imbalance.Biogerontology · 2026Review
- Selective antagonism of adenosine A2A receptor reduces hypobaric hypoxia-induced neuroinflammation by inhibiting cGAS-STING pathway.Scientific reports · 2026Article
- Synaptic mitochondrial dysfunction and Alzheimer's disease: from molecular mechanisms to therapeutic strategies.Frontiers in pharmacology · 2026Review
- Ceftriaxone alleviates mitochondrial damage through the inhibition of extrasynaptic NMDA receptor-mediated changes in intracellular calcium levels to improve cognitive deficits in APP/PS1 mice.Alzheimer's research & therapy · 2025Article
- The senescent synapse: A look at autophagy, calcium handling, and mitochondrial bioenergetics at the synapse in ageing and Parkinson's disease.Current research in physiology · 2025Review
- The mitochondrial functional characteristics and microstructure play an important role in yak meat color during wet curing.Food chemistry: X · 2025Article
- Bisphenol-F and Bisphenol-S (BPF and BPS) Impair the Stemness of Neural Stem Cells and Neuronal Fate Decision in the Hippocampus Leading to Cognitive Dysfunctions.Molecular neurobiology · 2024Article
- Attenuating mitochondrial dysfunction and morphological disruption with PT320 delays dopamine degeneration in MitoPark mice.Journal of biomedical science · 2024Article
- Neuronal ageing is promoted by the decay of the microtubule cytoskeleton.PLoS biology · 2024Article
- Prophylactic supplement with melatonin prevented the brain injury after cardiac arrest in rats.Scientific reports · 2023Article
- c-Abl Phosphorylates MFN2 to Regulate Mitochondrial Morphology in Cells under Endoplasmic Reticulum and Oxidative Stress, Impacting Cell Survival and Neurodegeneration.Antioxidants (Basel, Switzerland) · 2023Article
- Using Live Cell STED Imaging to Visualize Mitochondrial Inner Membrane Ultrastructure in Neuronal Cell Models.Journal of visualized experiments : JoVE · 2023Article
- Mitochondrial Bioenergetics, Redox Balance, and Calcium Homeostasis Dysfunction with Defective Ultrastructure and Quality Control in the Hippocampus of Aged Female C57BL/6J Mice.International journal of molecular sciences · 2023Article
- Characterization of Orange Peel Extract and Its Potential Protective Effect against Aluminum Chloride-Induced Alzheimer's Disease.Pharmaceuticals (Basel, Switzerland) · 2022Article
- Phosphorylated tau as a toxic agent in synaptic mitochondria: implications in aging and Alzheimer's disease.Neural regeneration research · 2022Review
- Synapses: The Brain's Energy-Demanding Sites.International journal of molecular sciences · 2022Review
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
The brain is sensitive to aging-related morphological changes, where many neurodegenerative diseases manifest accompanied by a reduction in memory. The hippocampus is especially vulnerable to damage at an early stage of aging. The present transmission electron microscopy study examined the synapses and synaptic mitochondria of the CA1 region of the hippocampal layer in young-adult and old rats by means of a computer-assisted image analysis technique. Comparing young-adult (10 months of age) and old (22 months) male Fischer (CDF) rats, the total numerical density of synapses was significantly lower in aged rats than in the young adults. This age-related synaptic loss involved degenerative changes in the synaptic architectonic organization, including damage to mitochondria in both pre- and post-synaptic compartments. The number of asymmetric synapses with concave curvature decreased with age, while the number of asymmetric synapses with flat and convex curvatures increased. Old rats had a greater number of damaged mitochondria in their synapses, and most of this was type II and type III mitochondrial structural damage. These results demonstrate age-dependent changes in the morphology of synaptic mitochondria that may underlie declines in age-related synaptic function and may couple to age-dependent loss of synapses.
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Registered trials
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