Augmenting brain metabolism to increase macro- and chaperone-mediated autophagy for decreasing neuronal proteotoxicity and aging.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanistic and preclinical concepts without original clinical data or systematic methodology
PubMed 28502807 · doi:10.1016/j.pneurobio.2017.05.001
What was done
Narrative review examining how metabolic and lifestyle interventions—specifically ketone bodies, caloric restriction, and exercise—influence macroautophagy and chaperone-mediated autophagy in neurodegeneration and brain aging, including comparative observations in yeast (*Saccharomyces cerevisiae*).
What was found
The abstract reports no quantitative data or numerical outcomes. It describes the mechanisms by which macroautophagy and chaperone-mediated autophagy maintain neuronal proteostasis and summarizes qualitative evidence linking metabolic interventions to enhanced autophagic clearance.
Why it matters
Synthesizes mechanistic links between lifestyle-driven metabolic modulation and dual autophagy pathways, outlining a conceptual basis for adjuvant strategies against age-related neurodegeneration.
Limits
This is a non-systematic narrative review based primarily on preclinical and mechanistic models without new clinical data. As noted in the abstract, the extent to which these interventions quantitatively affect human neuronal autophagy remains largely unclear.
Cited by
- supports Both caloric restriction and exercise stimulate cellular autophagy to clear damaged protein aggregates and DNA fragments from cells.