Results 181 to 190 of about 21,093 (230)

Inhibition of diamine oxidase by bulbocapnine

Biochemical Pharmacology, 1962
Abstract Using a modification of the spectrophotofluorometric method of Shore, Burkhalter and Cohn, an inhibition of diamine oxidase by bulbocapnine, using histamine as a substrate, has been demonstrated. The mechanism of the inhibition is competitive, as indicated by Lineweaver-Burke and Hunter-Downs plots.
J E, CHAPMAN, E J, WALASZEK
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Colorimetric estimation of diamine oxidase activity

Analytical Biochemistry, 1975
Abstract A simple colorimetric method for estimation of DAO activity with 4-nitrobenzylamine as a substrate (9,10) was developed. Sensitivity of this method, based on conversion of the aldehyde formed in course of the enzymatic reaction into its 4-nitrophenylhydrazone with subsequent measuring of optical density at 590 nm in strongly alkaline medium,
M I, Tourkov, G I, Klimova, G A, Davydova, K M, Yermolaev, V Z, Gorkin   +4 more
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Postheparin-diamine oxidase (histaminase) in anaphylaxis

Klinische Wochenschrift, 1975
The level of plasma postheparin-diamine oxidase was determined in two patients three days after an anaphylactic shock and was controlled four weeks, and also six months later. A decrease of the enzyme levels to about 10% of a control group was found and a slow enzyme increase to about 40% observed six months later. It seems probable that in anaphylaxis
V, Gäng, W, Gaubitz, U, Gunzer
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Diamine Oxidase: An Overview of Historical, Biochemical and Functional Aspects

Digestive Diseases, 1994
This article is a review of the historical, biochemical, and functional aspects of the enzyme diamine oxidase (DAO). The amine oxidase DAO, formerly called histaminase, is found in various tissues, but is especially active in the intestinal mucosa.
Wolvekamp, M. C.J., De Bruin, R. W.F.
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Immunohistochemical demonstration of lentil diamine oxidase.

Cellular and molecular biology, 1985
[No abstract available]
R. Federico, R. Angelini, M. P. Argento Ceru', MANES, Fausto   +3 more
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Metabolism of acetylpolyamines by monoamine oxidase, diamine oxidase and polyamine oxidase

Biochimica et Biophysica Acta (BBA) - General Subjects, 1981
N1-Monoacetylspermine, N1,N12-diacetylspermine and N1-monoacetylspermidine were found to be good substrates for rat liver polyamine oxidase, but not for rat liver mitochondrial monoamine oxidase. N8-Monoacetylspermidine, monoacetylcadaverine, monoacetylputrescine and monoacetyl-1,3-diaminopropane were oxidized by the monoamine oxidase when the ...
O, Suzuki, T, Matsumoto, M, Oya, Y, Katsumata   +3 more
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Highly efficient purification of porcine diamine oxidase

Journal of Chromatography B: Biomedical Sciences and Applications, 2000
Diamine oxidase (DAO) is a member of the class of copper-containing amine oxidases and catalyzes the oxidative deamination of histamine and other biogenic amines. The enzyme from porcine kidney was purified by consecutive chromatography on concanavalin A Sepharose, heparin Sepharose and Mono Q.
D, Wilflingseder, H G, Schwelberger
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Studies on Diamine Oxidase Activity During Pregnancy

Acta Obstetricia et Gynecologica Scandinavica, 1971
The diamine oxidase activities (diamine: oxygen oxidoreductase (deaminating), (EC 1.4.3.6)) of amniotic fluid, maternal venous plasma and fetal plasma were measured in 19 pregnant women at term. No statistically significant difference was found between the enzyme activity of the amniotic fluid and the maternal plasma.
A, Törnqvist, F, Jonassen, P, Johnson, A M, Fredholm   +3 more
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Inhibition of diamine oxidase by antimalarial drugs

Agents and Actions, 1980
The antimalarial drugs amodiaquine, quinacrine and chloroquine inhibit the catabolism of putrescine by the rat. Amodiaquine, the most potent of the three, does so in a dose-dependent fashion. This is attributed to the action in vivo of the drugs on diamine oxidase, an enzyme that is inhibited by them in vitro.
K, Ma, T L, Sourkes
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[239] Diamine oxidase (pig kidney)

1971
Publisher Summary This chapter discusses the methods of preparation of Diamine Oxidase (Pig Kidney). Although spectrophotometric methods have been described, the chapter describes the most commonly used procedure of assay, which is a manometric one. A qualitative assay is also described (oxyhemoglobin test).
Bruno Mondovì, Giuseppe Rotilio, Maria Teresa Costa, Alessandro Finazzi Agrò   +3 more
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