four weeks after the injection , the fate of the endocrine pancreas was investigated by studying ( a ) pancreatic content of four pancreatic hormones , ( b ) histology and immunohistochemistry of the pancreas , ( c ) i.v . glucose tolerance and i.v . insulin tolerance tests for monitoring plasma glucose , insulin , and pancreatic polypeptide ( pp ) levels in vivo , and ( d ) in vitro perifusion of pancreatic tissue slices to assess insulin and pp secretion .
C0022131
endocrine pancreas
C0021641
insulin