our results show that ( a ) the same cells are positive for both his-pro dkp and glucagon/glicentin , ( b ) his-pro dkp immunoreactive cells possess extremely electron-opaque secretory granules , implying that these cells correspond to the a cells , and ( c ) his-pro dkp immunoreactivity is found over the secretory granules .
C0007634
cells
C0886515
secretory granules