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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: J Pain. 2010 Apr 24;11(9):847–853. doi: 10.1016/j.jpain.2009.12.004

Fig. 2.

Fig. 2

Influence of acute i.c.v. pretreatment with vehicle (VEH), 1.0 µg naltrexone (NTX) and 1.0 µg L-NAME on the HBO2-induced early-phase antinociceptive response 3 hr after the fourth HBO2 treatment. The data are expressed as the mean ± S.E.M. of 8–12 mice per group. Significance of difference: ***, p < 0.001, compared to HBO2 control group (one-way ANOVA and post-hoc Bonferroni’s multiple comparison test).