staining of light-microscopic and ultrathin sections with antisera against alpha-msh , acth 1 -- 24 and human beta-endorphin revealed that only the lead-haematoxyline-positive cells of the pars intermedia react with these antisera , and that the secretory granules of these cells contain compounds that were immunoreactive to all three antisera .
C0007634
the
C0886515
secretory granules