Fig. 2. The role of collagen peptides in the Caenorhabditis elegans lifespan. (A-C) Effects of COL1A1 (40, 80, 160 ppm) versus vehicle (black) on lifespan (p-value listed, log-rank test); the same color coding is assigned to all subsequent panels. (D-F) Kaplan-Meier survival curve with COL7A1 (40, 80, 160 ppm) (p-value listed, log-rank test). (G-I) Independent lifespan assay with COL21A1 (40, 80, 160 ppm) (p-value listed, log-rank test). Lifespan assay data are presented in Supplementary Table 1.
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