Statistical analysis of the protection effects of LAB stains on C. elegans against H2O2 exposurea.
| Groupsb | Survival (%) | DT50c (day) | P |
|---|---|---|---|
| H2O2 | 45.39 | 2.07 | — |
| 427 | 80.48 | 5.11 | <0.01 |
| X13 | 82.67 | 5.79 | <0.01 |
| 9-5 | 78.56 | 5.14 | <0.01 |
| 422 | 81.03 | 4.89 | <0.01 |
| Z5 | 85.37 | 5.71 | <0.01 |
| G14 | 82.18 | 5.96 | <0.01 |
| H29M-8M | 72.86 | 4.54 | <0.01 |
| 408 | 40.21 | 2.63 | — |
| 13-7 | 35.66 | 2.21 | — |
| 430 | 45.85 | 3.07 | — |
a
Summary of two or more separate experiments. Survival of worms on the last day (day 3) of the assays was estimated with the Kaplan–Meier survival analysis.
b
H2O2: treatment with E. coli OP50 in the first 2 days and then under H2O2 exposure when C. elegans at L4 stage. LAB: treatment with LAB in the first 2 days and then under H2O2 exposure when C. elegans at L4 stage. Day 0 marked the point at which the nematodes were first exposed to H2O2.
c
DT50, the time at which half of the worms were dead.