Review of caloric restriction and aged adult stem cells across tissues
This abstract describes a review of how caloric restriction and related dietary strategies may rejuvenate aged adult stem cells in blood, intestine, brain and muscle, focusing on nutrient-sensing pathways around mTOR and on stem cell niches. [1]
Automatic summary · not editorially reviewed
The key findings
The abstract links declining ability of aged adult stem cells to produce functional progeny with the onset and progression of age-related diseases. [1]
According to the abstract, caloric restriction has been shown to rejuvenate aged stem cells in blood, intestine, brain and muscle. [1]
The review compares caloric restriction mimetics with caloric restriction and discusses prospects and limitations of caloric-restriction-mediated anti-aging effects. [1]
The source at a glance
- Study type / format
- Review article (abstract only)
- Population / context
- Aged adult stem cells in tissues including blood, intestine, brain and muscle, as described in the abstract
- Summary based on
- Study abstract
- Original publication
- June 11, 2026
Aged stem cells, niches and systemic factors
The abstract states that adult stem cells maintain tissue homeostasis and support tissue repair. In aged stem cells, the ability to produce functional progeny declines, and this is described as closely associated with the onset and progression of age-related diseases. Aging of adult stem cells in various tissues is said to be regulated jointly by local microenvironments, called stem cell niches, and by systemic factors. These are described associations, not proven causes.
Supporting source [1]
Caloric restriction across blood, intestine, brain, muscle
Caloric restriction is called a widely studied anti-aging strategy. The abstract says it has been shown to rejuvenate aged stem cells in multiple tissues, including blood, intestine, brain and muscle, either by directly targeting the stem cells themselves or their niches. The review compares different caloric-restriction-based dietary strategies and discusses molecular mechanisms, with particular attention to the conserved nutrient-sensing and growth-promoting network centered on mammalian target of rapamycin (mTOR). It also addresses the role of stem cell niches.
Supporting source [1]
Mimetics compared with restriction; open questions
The abstract says the advantages and disadvantages of caloric restriction mimetics relative to caloric restriction are compared. It also states that prospects and limitations of caloric-restriction-mediated anti-aging effects are discussed and key directions for future research identified. Because only the abstract was available, the specific mimetics, the detailed comparisons, the evidence behind the rejuvenation claims and the named research directions could not be checked. The full text was not reviewed.
Supporting source [1]
How to interpret this
Only the abstract was available; the full text was not reviewed. The abstract does not report study design, sample, follow-up, effect sizes or the specific evidence behind the rejuvenation claims.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Chai Y, Liu X, Bi J, Zeng J, Yao M, Shi F, Xu S. · europepmc.org · June 11, 2026