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Related to histaminase: Arylsulfatase


 (hĭ-stăm′ə-nās′, -nāz′, hĭs′tə-mə-)
An enzyme that catalyzes the inactivation of histamine and is found in the digestive system.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biochemistry) an enzyme, occurring in the digestive system, that inactivates histamine by removal of its amino group. Also called: diamine oxidase
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(hɪˈstæm əˌneɪs, -ˌneɪz)

an enzyme that catalyzes the decomposition of histamine, used in treating allergies.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.histaminase - enzyme that acts as a catalyst in converting histidine to histamine
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
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References in periodicals archive ?
For example, drug therapeutic effect and safety assessments are carried out based on changes in laboratory indices such as the Q-T segment in the ECG, blood routine tests, creatinine clearance rate, IgE and plasma histaminase before and after treatment [41,42].
DAO is formerly called histaminase. In addition to catabolizing endogenously released histamine, DAO in the gut also breaks down dietary histamine to prevent its uptake into the blood (Schwelberger).
Inhibition of monoamine oxidase and histaminase by Isoniazid can cause significant drug-food interactions.