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. 2021 Apr 19;11(4):315. doi: 10.3390/jpm11040315

Figure 2.

Figure 2

Areas of opioid receptor gene expression (μ = OPRM1, δ = OPRD1, κ = OPRK1, and NOP = ORL1) in the human brain (donor: H0351.1015, 55 yrs, male, and white or Caucasian). The cortical gene expression patterns are displayed on an inflated cortical surface (outer and inner surfaces of the left hemisphere). Subcortical structures of the brain are represented from the frontal view, and subcortical as well as brainstem structures are shown in the side view. The color bar displays expression values using z-score normalization. Reproduced from Peciña et al., 2019. Creative Commons license: http://creativecommons.org/licenses/by/4.0/, accessed on 14 April 2021.