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. Author manuscript; available in PMC: 2024 Nov 8.
Published in final edited form as: Synapse. 2019 Jan 22;73(5):e22088. doi: 10.1002/syn.22088

Fig. 1. Summary of sex differences in the opioid system following CIS and oxycodone CPP in the rat hippocampus.

Fig. 1.

Our previous light and electron microscopic studies have revealed notable sex-differences in mossy fiber LEnk levels and in the redistributions of DORs and MORs in pyramidal cells and GABAergic interneurons following CIS and oxycodone CPP (Mazid et al., 2016; McEwen and Milner, 2017; Ryan et al., 2018). *Females in diestrus; ^Females in estrus.