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J Dent Res 32(4): 504-510, 1953
© 1953 International and American Associations for Dental Research
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INHIBITORS IN RELATION TO SALIVARY AMYLASE ACTIVITY: QUININE AND URETHANE

LEON H. SCHNEYER 1

1 Dental Department, Montefiore Hospital, New York, N. Y.

In neutral solution, quinine and urethane exert a significant effect on salivary amylase only under conditions of temperature and salt concentration which themselves induce amylase inactivation of an apparently irreversible type. The data suggest that the reversible denaturation reaction, which mediates the inhibitory effects of these drugs on a number of other enzyme systems, does not serve as a locus for the inhibitory action of quinine and urethane on amylase. In the case of salivary amylase, the effects of quinine and urethane may be attributed to a catalysis of the spontaneous, apparently irreversible inactivation.

Submitted on November 19, 1952






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