抄録
Nitrogenous substances in human saliva produced by pilocarpine were observed separately with the parotid saliva and the saliva obtained from all the remaining salivary glands.
Both protein and non-protein nitrogens are contained much more in parotid saliva than in the other salivas, but this difference is especially striking in nonprotein nitrogens. In parotid saliva their concentration may reach over 100mg/dl., or five times as mch as that in serum, while that in the other salivas is lower than that in serum.
The greater part of these non-protein nitrogens consist of substances soluble in acid deproteinization agents and not soluble in alcohol and a small fraction of them of substance soluble in alcohol.
The former is only contained in parotid saliva while the latter seems to be present in all salivas, and this is why the content of non-protein nitrogens is so strikingly high in the parotid saliva. The concentration of non-protein nitrogens insoluble in alcohol undergoes considerable changes with regard to the rates of secretion and the features of these changes differ on different individuals and under different conditions. A tentative hypothesis for explanation of these changes has been advanced.
