Stem cells and the rate of living.
editorial · Level V
Where this comes from
- Record sourced from PubMed, PMID 18371325.
- Also identified by DOI 10.1016/j.stem.2007.05.004.
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Abstract
The "rate-of-living theory" is an ancient explanation of longevity which holds that aging occurs due to the exhaustion of some finite substance-breaths, heartbeats, etc. While this theory as originally conceived has been debunked, new work (Ruzankina et al. [2007], in this issue of Cell Stem Cell) suggests that mammals in fact do have a finite number of stem cell replications per life.
Medical subject headings
- Cell Division
- Stem Cells