Figure 3

Survival rates. Panel A, survival rate (in %) in the control (open circles) and vitamin B12-treated rats (closed circles). Time zero corresponds to the onset of the bleeding protocol. All rats survived the bleeding period (30 minutes), about 50% were still alive after 60 minutes, and no rats survived after 120 minutes. There was no difference in the survival rates between the two groups (logrank test). Panel B displays the individual survival times for the two groups. There was no significant difference in the mean survival time between control and vitamin B12 treated rats (65 ± 26 vs 59 ± 26 min).