in order to elucidate the physiological role of the 41 amino-acid residue corticotropin-releasing factor ( 41-crf ) on the secretion of acth , b-endorphin and alpha-msh , plasma levels of these peptides were measured by radioimmunoassay in intact and adrenalectomized rats , two hours after the injection of either 41-crf antiserum ( crf-as ) or normal rabbit serum for controls .
C0032105
plasma
C0229671
serum