Tissues in the body are supported by distinct stem cell populations that reside within structures of supporting helper cells known as stem cell niches. The primary purpose of stem cells is to deliver a supply of daughter somatic cells to replace lost cells, though they also provide signaling that affects cell behavior. All tissues undergo a slow turnover of cells as there is a limit to the number of times a somatic cell can replicate. Telomeres are lengths of repeated DNA sequences at the end of chromosomes that shorten with each cell division. When telomeres become too short, a cell reaches wh…
Intermittent Fasting Reduces Effects of Aging on Intestinal Stem Cell Function
Tissues in the body are supported by distinct stem cell populations that reside within structures of supporting helper cells known as stem cell niches. The primary purpose of stem cells is to deliver a supply of daughter somatic cells to replace lost cells, though they also provide signaling that affects cell behavior. All tissues undergo a slow turnover of cells as there is a limit to the number of times a somatic cell can replicate. Telomeres are lengths of repeated DNA sequences at the end of chromosomes that shorten with each cell division. When telomeres become too short, a cell reaches wh…