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. 2017 Mar 8;7:43658. doi: 10.1038/srep43658

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(a) Representative images of immunofluorescence staining in the NAc after cocaine (COC) or saline (SAL) self-administration during the binge test (AC: anterior commissure). (b) The number of IBA1⁺ cells in the NAc. (c) Percentage of IBA1⁺ cells exhibiting an activated morphology. (d) Percentage of IBA1⁺ cells that double-stained for activin A. Data are expressed as mean ± SEM, *P < 0.05, ^#P < 0.1 vs saline, n = 4/group.