Results 211 to 220 of about 22,316 (265)

Serum Diamine Oxidase in the Neonate

Neonatology, 1986
Serum diamine oxidase (DAO) activities were measured in 9 pregnant women and in 33 neonates during the 1st week of life. The radiometric method was used. Very high values were found in the mothers (mean ± SE: 720 ± 143 pmol ml^-1 h^-1) Neonates showed significantly elevated values (mean ± SE: 178 ± 54 pmol ml&
FORGET P, DE CURTIS, MARIO, SENTERRE J.
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Diamine oxidase in relation to diamine and polyamine metabolism

Agents and Actions, 1994
Diamine oxidase catalyzes the oxidative deamination of short chain aliphatic diamines, like putrescine, and histamine. The enzyme is rate-limiting in the terminal catabolism of polyamines, which are endogenous polycations important for cell growth and differentiation. This review examines the behavior of diamine oxidase in mammalian tissues in relation
A, Sessa, A, Perin
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Human kidney diamine oxidase: inhibition studies

Biochemical Pharmacology, 1976
Abstract The oxidation of p -dimethylaminomethylbenzylamine by purified human kidney diamine oxidase was studied in the presence of substrate analogues such as dimethylsulphonium, trimethylammonium, isothiouronium and guaniclinium compounds of various chain lengths. The inhibition by mono- and bis-onium compounds is described.
J S, Shindler, W G, Bardsley
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Purification of human placenta diamine oxidase

Biochemical and Biophysical Research Communications, 1992
Diamine oxidase (histaminase) is produced at very high levels by the decidual cells of the placenta. The presence of diamine oxidase has been demonstrated in human neutrophils. Purification of human placenta diamine oxidase was performed by four subfractionation steps and led to the isolation of one polypeptide whose molecular weight was 84,000, as ...
F, Morel, A, Surla, P V, Vignais
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Uterine Diamine Oxidase

1981
The classic bioassays for progesterone and biologically active progestins are tedious and semiquantitative. These assays and their limitations were described recently (Glasser, 1975). The synthesis of RNA was suggested by Glasser (1975) to be a reasonably specific and reproducible quantitative biochemical endpoint for the action of progestins on the ...
C. H. Spilman, D. C. Beuving, K. K. Bergstrom   +2 more
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Purification of human intestinal diamine oxidase

Inflammation Research, 1996
Diamine oxidase (DAO; EC 1.4.3.6) catalyzes the oxidative deamination of histamine and other biogenie amines [1]. In mammals, degradation by DAO is the major pathway ofhistamine inactivation in many organs, especially in the intestine where the highest activities of DAO have been reported [2].
H G, Schwelberger, J, Sattler, E, Bodner
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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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