Results 251 to 260 of about 4,011 (296)
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[Xanthine oxidase (xanthine dehydrogenase)].
Nihon rinsho. Japanese journal of clinical medicine, 1997Xanthine 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
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Regulation of xanthine dehydrogenase and xanthine oxidase activity by hypoxia
American Journal of Physiology-Lung Cellular and Molecular Physiology, 1996The present study determined the effect of hypoxia on xanthine dehydrogenase (XDH) and xanthine oxidase (XO) activity and gene and protein expression in cultured bovine aortic endothelial cells (BAEC). BAEC were exposed to hypoxia (3% O2) or anoxia (0% O2) for 24 or 48 h and to 24 h of hypoxia followed by 24 h of reoxygenation.
W B, Poss +4 more
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Tautomerism of xanthine and alloxanthine: A model for substrate recognition by xanthine oxidase
Journal of Computer-Aided Molecular Design, 1996Tautomerism of neutral xanthine and alloxanthine has been examined both in the gas phase and in aqueous solution. The tautomeric preference in the gas phase has been studied by means of semiempirical and ab initio quantum-mechanical computations with inclusion of correlation effects at the Møller-Plesset level, and from density-functional calculations.
Begoña Hernández +2 more
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Ischaemic Brain Oedema and Xanthine-Xanthine Oxidase System
1990The 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
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The Mechanism of Conversion of Xanthine Dehydrogenase to Xanthine Oxidase
1998Xanthine dehydrogenase and xanthine oxidase are complex metalloflavoproteins that represent alternate forms of the same gene product. The cDNAs encoding the enzymes have been cloned from several sources, and structural information is becoming available.
Takeshi Nishino +4 more
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Behavioral and physiological effects of xanthines in nonhuman primates
Psychopharmacology, 1997R D Spealman +2 more
exaly