Bell et al. (2006) reported protein expression changes in the ACB and amygdala of inbred P rats that had been chronically drinking alcohol. These investigators reported that ethanol drinking altered 14 proteins in the ACB and 27 proteins in the amygdala (Bell et al., 2006). There was no overlap between the proteins altered in the ACB by chronic alcohol drinking (Bell et al., 2006) and those altered by repeated ethanol injections in the present study (Table 2). This is likely due to differences in the alcohol-exposure protocols and analyzing the entire ACB versus the ACB-shell.