Fig. 1.
The effect of oxygen and/or hyperbaric pressure on nociception in mice. Groups: NBA, normobaric (room) air; NBO2, normobaric (100%) oxygen; HBA, hyperbaric (room) air (3.5 ATA); and HBO2, hyperbaric oxygen (100% oxygen at 3.5 ATA). The data are expressed as the mean ± S.E.M. of 8–13 mice per group. Significance of difference: §§§, P < 0.001, compared to NBA, NBO2 and HBA treatment groups (one-way ANOVA and post-hoc Bonferroni’s multiple comparison test). There were no significant differences among NBA, NBO2 or HBA.