Activation of the phosphocholine pathway with aging. (A) Relative
concentrations in arbitrary units of phosphocholine in young and 7-day-old
adult WT, slcf-1(tm2258), daf-18(e1375), and daf-18(e1375);slcf-1(tm2258) double mutants. Results are reported with means and 95% confidence
intervals. (B) Relative concentrations in arbitrary units of ckb-2 mRNA in young and 7-day-old adults WT, slcf-1(tm2258), daf-18(e1375) and daf-18(e1375);slcf-1(tm2258) double mutants. Results are reported
with means and standard deviations. See SI Table S2 for detailed data and statistical tests for comparison.
(C) Survival curves of OLB11 worms fed control (HT) or ckb-2RNAi bacterial clones. OLB11 strain allows RNAi inactivation of genes
in the intestine only. Data from three independent experiments have
been pooled. The corresponding lifespans were 23.3 ± 0.2 (n = 208) and 19.9 ± 0.4 (n = 228),
respectively, for wild-type and ckb-2RNAi-treated
worms. Comparison with log rank test: p < 10–3.