the aims of this study were : ( 1 ) to test the possibility that pre-ghrh plasma gh values could reflect the functional status of the hypothalamic-somatotroph rhythm ( hsr ) at testing , and thus explain if it is responsible for the marked variability in gh responsiveness to ghrh challenge and ( 2 ) to see if exogenous somatostatin ( ss ) could disrupt this endogenous hsr and thus make the gh responses homogeneous .
C0037659
somatostatin
C0020663
hsr