“Acute injection of … acid GABA ) mimetics progabide, aminooxyacetic acid, … GABA and dipropylacetamide reduced 5-hydroxytryptophan (5-HTP) accumulation in serotonergic nerve terminal regions (prefrontal cortex, olfactory tubercle, septum, striatum, hypothalamus, hippocampus, substantia … and spinal cord) as well as in corresponding cell body areas (raphé dorsalis, medianus, pontis and magnus).”