Histochemical Detection of Hydrolytic and Oxidative Enzymes in Callus Tissue

Histochemical studies of hydrolytic and oxidative enzymes in the human intestinal tumors.

The distribution and activities of five hydrolytic and eight oxidative enzymes were histochemically studied in 60 different tumors of the human intestines. Benign polyp showed similar activities of most enzymes as those in normal crypt cells of large intestine with exception of higher activity of succinic dehydrogenase in benign polyp than in crypt cells. Malignant polyp had higher activities o...

A histochemical study on hydrolytic and oxidative enzymes in human sarcomas.

Histochemical evaluations of human sarcomas such as reticulum cell sarcoma, fibrosarcoma, lymphosarcoma and neurofibrosarcoma, were carried out with five hydrolytic enzymes and eight oxidative enzymes. The activities of acid phosphatase and beta-glucuronidase were slightly positive in the neoplastic cells observed. Beta-esterase activity was also positive but varied according to the kind of sar...

Histochemical demonstrations of actinomycin-induced changes of certain oxidative and hydrolytic enzymes of rat incisor pulps.

Levels of succinic and lactic dehydrogenases, cytochrome oxidase, alkaline and acid phosphatase activities of the rat incisor pulp wereexamined following a sublethal dose injection of actinomycin D. Control animals injected with physiological saline were pair-fed. Succimc dehydrogenase and cytochrome oxidase activities were low in the pulp and presented insignificant alterations throughout the ...

Oxidative and Hydrolytic Enzymes in the Nephron of Necturus Maculosus

The distribution of oxidative and hydrolytic enzyme activities along the nephron of Necturus maculosus Rafinesque was studied histochemically. The proximal tubule possessed all the demonstrable enzyme activities associated with the hexose-monophosphate shunt and glycolysis, but lacked detectable succinic dehydrogenase and cytochrome oxidase activities. Krebs cycle enzymes other than succinic de...

Histochemical Localization of Certain Oxidative Enzymes in the Rat Testis.