Results 151 to 160 of about 3,513 (189)

Diamine oxidase (DAO) supplement reduces headache in episodic migraine patients with DAO deficiency: A randomized double-blind trial [PDF]

open access: yesClinical Nutrition, 2019
Histamine intolerance is a disorder in the homeostasis of histamine due to a reduced intestinal degradation of this amine, mainly caused by a deficiency in the enzyme diamine oxidase (DAO). Among histamine related symptoms, headache is one of the most recorded. Current clinical strategies for the treatment of the symptomatology related to this disorder
Oriol Comas-Basté   +2 more
exaly   +5 more sources

Comparative characterization of diamine oxidase (DAO) activity from plant, animal and microbial matrices

open access: yesFood Bioscience
Histamine intolerance is associated with impaired histamine metabolism caused by a deficiency of the enzyme diamine oxidase (DAO). A recommended strategy to alleviate symptoms is a low-histamine diet supplemented with exogenous DAO. Recent studies suggest plant-based DAO from legume sprouts could be a viable active ingredient for supplements.
Judit Costa-Catala   +2 more
exaly   +5 more sources
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Plasma diamine oxidase (DAO) and heparin

Digestive Diseases and Sciences, 1984
Luciano D'Agostino   +2 more
exaly   +5 more sources

Prediction of the amount and rate of histamine degradation by diamine oxidase (DAO)

Food Chemistry, 2012
Histamine is a biogenic amine that forms in a variety of foods and can cause food poisoning at high concentrations (>500 ppm). In situations where the formation of histamine in food cannot be prevented through refrigeration, diamine oxidase (DAO) enzyme may be used to degrade histamine to safe levels.
Aishath Naila   +2 more
exaly   +3 more sources

Diamine oxidase (DAO) and female sex hormones

Agents and Actions, 1986
DAO activity in tissues of female guinea pigs was determined after the administration of estradiol or progesterone. Estradiol pretreatment elicited significant fall in DAO activity in the liver and specific increase in the uterus. The effect of progesterone was much less pronounced.
W A Fogel, Fogel W A
exaly   +3 more sources

A Spectrophotometric Method for Determination of Diamine Oxidase (DAO) Activity

Acta Physiologica Scandinavica, 1959
Abstract.If diamine oxidase is allowed to act upon the diamine putrescine, a cyclic compound, δl‐pyrroline, will be formed, which in turn reacts with o‐aminobenzaldehyde to form a yellow compound. These reactions have been taken as a starting point for a photometric method for determination of diamine oxidase.
B, HOLMSTEDT, R, THAM
openaire   +2 more sources

Equations of Substrate-inhibition Kinetics Applied to Pig Kidney Diamine Oxidase (DAO, E.C. 1.4.3.6)

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2003
Pig kidney diamine oxidase (DAO) and other semicarbazide-sensitive amine oxidases (SSAO) show clear substrate-inhibition kinetics and a reaction-scheme mechanism based on two substrate binding sites. We evaluated several reaction scheme mechanisms with a non-linear regression program (NCSS), estimating R2, the constants of the equations and their ...
G Ignesti
exaly   +4 more sources

On the Elimination of Transfused Heparin‐Induced Diamine Oxidase (DAO) Activity in Rabbits

Acta Physiologica Scandinavica, 1973
AbstractLymph or blood plasma, rich in diamine oxidase (DAO; EC 1.4.3.6.) activity was obtained from donor rabbits, after i.v. injection of heparin. The lymph or, after heparin neutralization, the blood serum was injected into recipient rabbits, and the elimination of the transfused DAO activity was studied.
R, Hansson, H, Thysell
openaire   +2 more sources

Effect of Intestinal Diamine Oxidase (DAO) Depletion by Heparin on Mucosal Polyamine Metabolism

Digestion, 2009
The aim of this study was to examine the relative importance of the enzymes ornithine decarboxylase (ODC) and diamine oxidase (DAO) in intestinal polyamine metabolism in normal rats. To study this we measured jejunal and ileal DAO and ODC activities and polyamine levels 2 h after injecting, in non-fasting male Wistar rats, either normal saline ...
T, Rokkas   +4 more
openaire   +2 more sources

A FURTHER INVESTIGATION OF THE RELATIONSHIP BETWEEN SERUM DIAMINE OXIDASE (DAO) AND GESTATIONAL AGE

BJOG: An International Journal of Obstetrics & Gynaecology, 1976
SummaryA standard error of one to two weeks must be accepted if the duration of pregnancy is calculated from serum diamine oxidase (DAO) concentrations. After the 16th week of pregnancy, the enzyme concentration is too variable to be used for calculations of gestational age.
J B, Jones, M, Kelly
openaire   +2 more sources

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