Table 2.
Concentrations (pg/mg) of endogenous brain oxytocin (OT).
| Dose-Route d5OT | 80 IU IN | 40 IU IN | 80 IU IV | |||
|---|---|---|---|---|---|---|
| Monkey ID# (Sex) | ID #2 (M) | ID #4 (M) | ID #1 (F) | ID #5 (F) | ID #3 (F) | ID #6 (F) |
| Brain Region | BRAIN OT concentration (pg/mg) | |||||
| Cerebellum | ND | 0.06 | 2.16 | 0.12 | ND | + |
| Brainstem | 5.11 | 3.55 | 7.27 | 9.34 | 10.93 | 3.58 |
| Striatum | 1.58 | 17.81 | 0.63 | 1.20 | 14.45 | 15.82 |
| Amygdala | 5.82 | 23.97 | NM | 39.11 | 4.63 | 7.26 |
| Thalamus | 1.02 | 3.09 | 4.39 | 7.31 | 3.85 | 28.34 |
| Visual Cortex | ND | ND | ND | ND | ND | ND |
| Insular Cortex | ND | 0.06 | 0.30 | 0.16 | ND | |
| dPFC | ND | 0.20 | ND | 0.16 | 0.27 | ND |
| mPFC | ND | 0.45 | 0.86 | 0.88 | ND | ND |
| OFC | 0.40 | 1.59 | 0.22 | 0.96 | 0.44 | ND |
| Hypothalamus | 943.27 | 2186.74 | 1491.96 | |||
| Hippocampus | 2.83 | 0.99 | 0.99 | |||
ND not detected, NM not measured, + detected but not quantifiable, OT oxytocin, dPFC dorsal prefrontal cortex, mPFC medial prefrontal cortex, OFC orbital frontal cortex, CSF cerebrospinal fluid, M male, F female, IN intranasal, IV intravenous.