histochemical enzymatic alterations were in the form of increased succinic dehydrogenase activity in the epithelium as well as in the hyperplastic submucous glands , intensified reaction of the acid phosphatase in the cells of the corium , and the appearance of alkaline phosphatase activity in the apical parts of the cells lining the glands , indicating increased secretory activity .
C0007634
cells
C1327616
secretory