Fig. 3.
Aging depresses sirtuin activity and increases oxidative stress leading to cardiovascular alterations (a). Upon activation by resveratrol or other chemical activators, each sirtuin might deacetilate several proteins that promote resistance to oxidative stress (b). FOXO forkhead box O, NF-kB nuclear factor kB, Mn-SOD manganese superoxide dismutase, SIRT sirtuin