Natural Bioactive Compounds Targeting Key Hallmarks Of Aging: Functional Food Potential Of Spermidine, Fisetin, Berberine, And Urolithin A
As we age, our cells undergo various changes that contribute to the aging process, often referred to as “hallmarks of aging.” These include issues like cellular dysfunction, where cells don’t work as well, and a decline in the body’s ability to clean up damaged cellular components. Scientists are exploring natural compounds that could help counteract these changes.
This research highlights four such compounds with exciting potential. Spermidine, found in foods like wheat germ and fermented products, helps trigger “autophagy,” which is essentially the cell’s recycling program, clearing out old and damaged parts. Fisetin, a flavonoid present in strawberries and apples, acts as a “senolytic,” meaning it selectively eliminates “senescent cells”—often called “zombie cells”—that accumulate with age and contribute to inflammation and tissue damage. Berberine, an extract from certain plants, helps regulate metabolism and can positively influence our gut bacteria, both crucial for healthy aging. Lastly, Urolithin A, a compound produced by gut bacteria from ellagitannins found in pomegranates and nuts, promotes “mitophagy,” a specialized form of autophagy that specifically removes damaged mitochondria, the powerhouses of our cells.
What’s particularly interesting is that these compounds each tackle different, yet complementary, aspects of aging. Spermidine focuses on general cellular cleanup, fisetin targets problematic senescent cells, berberine supports metabolic health, and urolithin A specifically addresses mitochondrial health. This suggests that combining these natural ingredients in functional foods could offer a more comprehensive approach to supporting healthy aging, though more research is needed to fully understand their combined effects and optimal use.
Source: link to paper