نتایج جستجو برای: s16xanthine oxidase
تعداد نتایج: 50417 فیلتر نتایج به سال:
Benzoate competes with n-amino acids for n-amino acid oxidase and thus inhibits the activity of the oxidase (l-3). Monosubstituted benzoates, depending upon the substituent, have higher and lower affinities for the oxidase than has benzoate (2). Kojic acid, a Y-pyrone, likewise competitively inhibits the oxidase (4). The present report describes the inhibition of n-amino acid oxidase by certain...
Cytochrome c oxidase binds protonophore carbonyl cyanide 3-chlorophenylhydrazone (CCCP) with high affinity. There are 1.46 high-affinity binding sites per cytochrome c oxidase for CCCP with dissociation constant 2.7 x 10(-7) mol/l. The bond between the CCCP and cytochrome c oxidase accomplishes through the group on cytochrome c oxidase with pKa 6.64 and is based on the electrostatic interaction...
The kinetics of sodium dodecyl sulfate-induced activation of respiratory burst oxidase (NADPH oxidase) in a fully soluble cell-free system from resting (control) or phorbol myristate acetate (PMA)-stimulated human neutrophils were investigated. In a cell-free system containing solubilized membranes and cytosol fractions (cytosol) derived from control neutrophils (control cell-free system), the ...
The kinetics of sodium dodecyl sulfate-induced activation of respiratory burst oxidase (NADPH oxidase) in a fully soluble cell-free system from resting (control) or phorbol myristate acetate (PMA)-stimulated human neutrophils were investigated. In a cell-free system containing solubilized membranes and cytosol fractions (cytosol) derived from control neutrophils (control cell-free system), the ...
Benzoate competes with n-amino acids for n-amino acid oxidase and thus inhibits the activity of the oxidase (l-3). Monosubstituted benzoates, depending upon the substituent, have higher and lower affinities for the oxidase than has benzoate (2). Kojic acid, a Y-pyrone, likewise competitively inhibits the oxidase (4). The present report describes the inhibition of n-amino acid oxidase by certain...
Lysyl oxidase is a multifunctional enzyme required for collagen biosynthesis. Various growth factors regulate lysyl oxidase during osteoblast differentiation, subject to modulation by cytokines such as TNF-α in inflammatory osteopenic disorders including diabetic bone disease. Canonical Wnt signaling promotes osteoblast development. Here we investigated the effect of Wnt3a and TNF-α on lysyl ox...
Protein-lysine 6-oxidase (lysyl oxidase) is a cuproenzyme that is essential for stabilization of extracellular matrixes, specifically the enzymatic cross-linking of collagen and elastin. A hypothesis is proposed that links dietary copper levels to dynamic and proportional changes in lysyl oxidase activity in connective tissue. Although nutritional copper status does not influence the accumulati...
SEE CORRESPONDING ARTICLE ON PAGE 16 TAAR1-Dependent and -Independent Actions of Tyramine in Interaction With Glutamate Underlie Central Effects Monoamine Oxidase InhibitionBiological PsychiatryVol. 90Issue 1PreviewMonoamine oxidase inhibitors (MAOIs) exert therapeutic actions by elevating extracellular levels monoamines the brain. Irreversible MAOIs cause serious hypertensive crises owing to p...
NADPH oxidases transport electrons from cytosolic NADPH through biological membranes to generate reactive oxygen species. NADPH oxidase 4, broadly expressed in humans, is an interesting pharmacological target, since its activity is deregulated in several diseases, including pulmonary fibrosis, diabetic nephropathy, and cardiac hypertrophy. Whereas several candidate NADPH oxidase 4 inhibitors we...
The p53-induced gene-6 (proline oxidase) mediates apoptosis through a calcineurin-dependent pathway.
Proline oxidase is a p53-induced redox gene that can generate reactive oxygen species (ROS) and mediate apoptosis in tumor cells. We report that proline oxidase is a downstream effector in p53-mediated activation of the calcium/calmodulin-dependent phosphatase calcineurin in lung, renal, colon, and ovarian carcinoma cells. The activation of calcineurin by p53 and proline oxidase was detected by...
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