It would be interesting to note if CR can extend or further extend life span in a cox5∆ or cyc1∆ mutant, given the much clearer relationship between life span and respiration in P. anserina's distant cousin, S. cerevisiae.
In conclusion, we have shown that rapamycin treatment delays aging, an effect more pronounced than DR and that could further increase life span in combination with mild downregulation of IIS, firmly demonstrating that rapamycin could be used to study aging in flies.
Although the mechanisms underlying DR are not entirely understood, DR does not further increase life span when TOR signaling is already reduced in yeast, worms, or flies, suggesting that common mechanisms may mediate both of these antiaging interventions (Grandison et al., 2009).
Rapamycin treatment of flies with reduced levels of Drosophila insulin-like peptides (DILPs) due to the partial ablation of the DILP-producing median neurosecretory cells (mNSC) (Broughton et al., 2005) did not further increase life span in these long-lived flies.
For example, although RNA/protein synthesis is decreased with aging in model organisms, yet its further inhibition prolongs life span further [ 138- 141].
To further study further proliferation and invasion, we need to optimize the mouse PCLS culture conditions and further prolong the life span of the PCLS.
Short-term exposure to hyperoxia can further extend the life span of age-1, and age-1 mutant also show resistance to paraquat and heat shock [10].
To further analyze the life span of mated and self-fertile hermaphrodites, we conducted a cross sectional study.
For example, elephants or whales (unless hunted by men) may die from "old age": so natural selection has been at work to further increase their life span.
Because of the many potential interactions between the TOR pathway and IIS, we investigated whether rapamycin treatment could further increase the life span of long-lived IIS mutants.
