in view of a possible cosecretion of these substances with grf into the portal circulation , the effect of synthetic rat hypothalamic grf ( 1-43 ) alone , or together with dopamine ( da ) , l-dopa , gamma-aminobutyric acid ( gaba ) , neurotensin ( nt ) or galanin ( gal ) on gh release was investigated by using dispersed rat anterior pituitary cells in monolayer culture .
C0020663
hypothalamic
C0023610
grf