Summary
This narrative review examines the role of mitochondrial dysfunction in age-related vascular decline and cognitive impairment, with emphasis on the brain's microvasculature. The authors synthesise evidence that time-restricted feeding may counteract vascular aging by restoring mitochondrial bioenergetics, activating adaptive nutrient-sensing networks (AMPK, SIRT1), and promoting metabolic switching toward ketone utilisation, thereby preserving endothelial function and blood-brain barrier integrity. The review frames time-restricted feeding as a translational, non-pharmacological strategy to extend healthspan and mitigate cognitive aging.
Regional applicability
This is a mechanistic review of interventions in laboratory and clinical research contexts; whilst the findings on dietary intervention pathways are globally applicable, implementation and relevance to United Kingdom population health policy would depend on subsequent epidemiological and randomised trial evidence in UK cohorts, particularly regarding feasibility and cognitive outcomes in older adults.
Key measures
Mitochondrial function, endothelial function, neurovascular coupling, blood-brain barrier integrity, AMPK and SIRT1 signalling, mTOR inhibition, oxidative stress markers, mitophagy, cognitive resilience
Outcomes reported
The review synthesises mechanistic evidence linking mitochondrial dysfunction to vascular aging and cognitive decline, and examines how time-restricted feeding/eating may restore mitochondrial function and endothelial resilience through activation of nutrient-sensing pathways and metabolic switching.
Topic tags
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