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. Author manuscript; available in PMC: 2018 Feb 15.
Published in final edited form as: Behav Brain Res. 2016 Nov 3;319:96–103. doi: 10.1016/j.bbr.2016.10.050

Figure 2.

Figure 2

BPN’s behavioral effects in the NIH test are blocked in Oprm1−/− mice. A). BPN reduced latency to approach and B) increased food consumed in WT and Oprk1−/− mice but not Oprm1−/− mice. N = 8–19 per group. (*p < 0.05, ***p < 0.001 compared to vehicle).