this study attempted to visualize serotonin ( 5-ht ) -immunoreactive ( ir ) neurons in the hypothalamus of intact fetuses ( e18 ) and neonatal rats ( p9 ) as well as after their pretreatment with some drugs interfering with the 5-ht metabolism and uptake in the serotoninergic neurons ( l-tryptophan , pargyline , 5-hydroxytryptophan , fluoxetine ) .
C0041249
l-tryptophan
C0000578
5-hydroxytryptophan