Lactic dehydrogenase activity in saliva, bile, gastric and duodenal contents
1. The presence of LDH in saliva, gastric fluid, bile, and duodenal secretion was determined in normal and pathologic states.
2. The level of enzyme activity was significantly influenced by thepH of the medium, the degree of contaminating occult and microscopic blood, and the presence of saliva in the gastric contents.
3. In the two series of patients with carcinoma of the stomach and benign gastric ulcer, respectively, there was too much overlapping for the determination of LDH activity to be of any value in the differential diagnosis of these conditions.
KeywordsPublic Health Enzyme Carcinoma Enzyme Activity Differential Diagnosis
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