Table 3.
Striatal levels of glutamate minimally contaminated by glutamine and γ-aminobutyric acid
| OCD (n=15)a | Healthy control (n=16)a | 95% CI for difference in means | |
|---|---|---|---|
|
| |||
| Striatal subregions | Mean (SD), i.u. | Mean (SD), i.u. | |
|
| |||
| Dorsal caudate | 5.30 (1.60) | 4.75 (2.20) | −1.98, 0.86 |
| Dorsal putamen | 6.22 (2.05) | 7.10 (2.63) | −1.08, 2.85 |
| Ventral striatum | 4.70 (2.50) | 5.35 (2.38) | −1.28, 2.59 |
Abbreviations: CI, confidence interval; i.u., Institutional units; SD, standard deviation
a
Samples sizes were smaller for the dorsal putamen (12 OCD, 13 healthy control) and the ventral striatum (13 OCD, 14 healthy control).