Results 261 to 270 of about 78,843 (311)

Sulfhydryl oxidase-catalyzed conversion of xanthine dehydrogenase to xanthine oxidase

Archives of Biochemistry and Biophysics, 1981
Abstract Xanthine oxidase may be isolated from various mammalian tissues as one of two interconvertible forms, viz., a dehydrogenase (NAD+ dependent, form D) or an oxidase (O2 utilizing, form O). A crude preparation of rat liver xanthine dehydrogenase (form D) was treated with an immobilized preparation of crude bovine sulfhydryl oxidase.
D A, Clare, B A, Blakistone, H E, Swaisgood, H R, Horton   +3 more
openaire   +2 more sources

Xanthine oxidase

2000
Abstract Xanthine oxidoreductase is widely distributed among mammalian species and is expressed mainly in vascular endothelial cells, hepatocytes, epithelial cells of the intestine, and the secretory cells of the mammary gland. Expression of the enzymatic activity of XO/XD depends on the animal species.
Takaaki Akaike, Yoichi Miyamoto, Tomohiro Sawa   +2 more
openaire   +1 more source

[Xanthine oxidase (xanthine dehydrogenase)].

Nihon rinsho. Japanese journal of clinical medicine, 1997
Xanthine oxidase (xanthine dehydrogenase) is composed of two identical subunits of approximately 150,000 daltons. Each subunit contains four oxdation-reduction active cofactors/monomers. In vivo, the enzyme exists mostly as the dehydrogenase type (the NAD-dependent type).
S, Sumi, Y, Wada
openaire   +1 more source

Ischaemic Brain Oedema and Xanthine-Xanthine Oxidase System

1990
The formation of oxygen-derived free radicals in cerebral ischaemia has been implicated in altering the BBB permeability, cause oedema and tissue damage. However little attention has been paid regarding the involvement of xanthine oxidase in the cerebral ischaemic events.
Y, Kinuta, H, Kikuchi, M, Ishikawa
openaire   +2 more sources

Fluorometric assay for xanthine oxidase

Analytical Biochemistry, 1967
Abstract It has been shown that the fluorometric assay for xanthine oxidase, in which 2-amino-4-hydroxypteridine (AHP) is oxidized to a fluorescent product, is not valid when applied to fresh extracts of rat liver. The reaction rate is not proportional to the amount of enzyme preparation in the range of substrate and tissue concentration recommended ...
J L, Haining, J S, Legan
openaire   +2 more sources

Folic Acid and Xanthine Oxidase

Annals of Internal Medicine, 1977
Excerpt To the editor: In the September 1976 issue (Ann Intern Med85:333-335), Lockard and associates state, "....there is a need for the development of additional xanthine oxidase inhibitors...." ...
openaire   +2 more sources

Xanthine Oxidase (Xanthine Dehydrogenase)

1974
Rainer Fried, Lygia W. Fried
openaire   +1 more source

Xanthine oxidase

1995
Dietmar Schomburg, Dörte Stephan
openaire   +1 more source

Xanthine Oxidase and Iron

New England Journal of Medicine, 1964
V, HURST, M, GROSSMAN, V L, SUTTER, J, FENNELL   +3 more
openaire   +2 more sources

Improved xanthine oxidase purification

Biochimica et Biophysica Acta (BBA) - Enzymology, 1967
L I, Hart, R C, Bray
openaire   +2 more sources