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

Figure 5

AX-containing NGM plates for measurement of lifespan in nematode. Left-, middle-, and right-hand plates contain a red carotenoid pigment AX of 0, 0.1, and 1 mM, respectively. For its lipid solubility, nonesterified AX crystalline was delivered using a DMSO vehicle in NGM [29].