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. Author manuscript; available in PMC: 2019 Nov 21.
Published in final edited form as: Neuroscience. 2018 Oct 11;393:236–257. doi: 10.1016/j.neuroscience.2018.10.002

Fig. 7. The number of delta opioid receptor (DOR)-labeled cells in the hilus of the dentate gyrus is altered in females following oxycodone conditioned place preference.

Fig. 7.

A. Low magnification photomicrograph shows DOR-containing cells in three regions of the hilus (cr = crest; cen = central hilus; db = dorsal blade). Representative high magnification photomicrographs (right) of the central hilus show a greater number of labeled cells in the Oxy-female compared to the Sal-female. Scale bar: 100 μm (left); 50 μm (right). B. Compared to Sal-females, Oxy-females show an increased number of DOR cells in the central hilus (**p < 0.01).