DA, glutamate glycine, GABA, and aspartate levels in mPFC homogenates of CS-WT, CS-NTS1−/−, CP-WT and CP- NTS1−/− mice as measured by CE-LIFD. Mouse brains were harvested, dissected on ice, and frozen at −80°C until assayed. Brain tissue was homogenized as described in Materials and Methods and applied to CE-LIFD for detection of neurotransmitter levels (pg/mg tissue). The data were shown as mean (pg/mg wet tissue) ± S.E.M (N=5~7 for each group). P<0.05 is considered significant. *, significantly different from WT.