glutamine , glutamate , aspartate , and gamma-aminobutyric acid ( gaba ) levels were measured in homogenates of cerebral cortex ( prefrontal and frontal ) , caudate nuclei , hypothalamus , cerebellum ( cortex and vermis ) , and medulla oblongata as their o-phthalaldehyde derivatives by hplc using fluorescence detection .
C0007765
cerebellum
C0228482
vermis