pretreatment with cysteamine ( 300 mg/kg , s.c. ) , a known depletor of hypothalamic srif , or with anti-srif serum ( 0.5 ml/rat ) completely counteracted the lessening of the gh response to ghrh induced by 2.0 micrograms gh injected i.c.v .
C0020663
hypothalamic
C0037659
srif