Moderate DR | Moderate DR is the restriction of glucose concentration from 2% (*ad libitum*) to 0.5%, which extends the mean, median and maximum replicative lifespan by 45 - 52%, 43 - 50% and 50 - 52%, respectively [23172144]
Moderate DR increases vacuolar acidity in young cells and prevents the decline of vacuolar acidity in aging cells. DR also suppresses mitochondrial dysfunciton of aged cells (21 divisions) in a V-ATPase-dependent manner [23172144].
Constitutively activating PKA signaling by deleting the Ras GTPase-activating protein IRA2 reduces vacuolar acidity and accelerates the development of mitochondrial dysfunction in aging cells and prevents DR-mediated enhancement of vacuolar acidity and suppression of mitochondrial dysfunction [23172144].
Lifespan extension by DR is prevented in a strain lacking V-ATPase activity [23172144]. | Yeast | +45.2 to +51.7 | +42.9 to +50.0 | +50.0 to +52.0 |