A. Representative Western blot of synaptophysin expression in the PFC of human subjects across development. An equal amount of total protein was added to each lane. Synaptophysin immunoreactive bands migrated to 38 kDa. Lane 1 shows molecular weight markers. Lanes 2-8 contain samples 1 (age 18 wks gestational age), 9 (0.1 yrs), 13 (2.8 yrs), 22 (9.1 yrs), 31 (15.2 yrs), 34 (18.4 yrs) and 38 (22.8 yrs), respectively. B. Representative Western blot of PSD-95 expression in the PFC of subjects across development. An equal amount of total protein was added to each lane. PSD-95 immunoreactive bands migrated to 95 kDa. Lane 1 shows molecular weight markers. Lanes 2-8 contain samples 2 (age 18 wks gestational age), 10 (0.29 yrs), 13 (2.8 yrs), 20 (8.6 yrs), 31 (15.2 yrs), 32 (16.5 yrs), and 37 (21.5 yrs), respectively.