Supplemental Cellular Protection by a Carotenoid Extends Lifespan via Ins/IGF-1 Signaling in Caenorhabditis elegans

Figure 3

Mitochondrial ^•O₂⁻ contents of various strains. Left-hand open bar for each strain of 4 days old (a) and 14 days old (b) indicates mitochondrial ^•O₂⁻ level in vitro without 1 mM AX exposure, and right-hand shaded bar indicates values with AX exposure. Data are means ± standard error of the mean (SEM) of ten independent measurements. 𝑃 values, which were calculated using a two-tailed 𝑡-test for paired samples with unequal variances, are ^∗𝑃<0.001.

(a)

(b)