Results 21 to 30 of about 524 (148)

Females present higher dose‐adjusted drug concentrations of metoprolol and allopurinol/oxypurinol than males

open access: yesClinical and Translational Science, 2023
Females present a higher risk of adverse drug reactions. Sex‐related differences in drug concentrations may contribute to these observations but they remain understudied given the underrepresentation of females in clinical trials.
Jessica Hindi   +13 more
doaj   +1 more source

Pharmacokinetic/Pharmacodynamic Modelling of Allopurinol, its Active Metabolite Oxypurinol, and Biomarkers Hypoxanthine, Xanthine and Uric Acid in Hypoxic-Ischemic Encephalopathy Neonates [PDF]

open access: yes, 2021
Background: Allopurinol, an xanthine oxidase (XO) inhibitor, is a promising intervention that may provide neuroprotection for neonates with hypoxic-ischemic encephalopathy (HIE).
Bakkali, Loubna el   +26 more
core   +4 more sources

Allopurinol hypersensitivity is primarily mediated by dose-dependent oxypurinol-specific T cell response [PDF]

open access: yes, 2013
BACKGROUND Allopurinol is a main cause of severe cutaneous adverse reactions (SCAR). How allopurinol induces hypersensitivity remains unknown. Pre-disposing factors are the presence of the HLA-B*58:01 allele, renal failure and possibly the dose taken.
Mattsson, J,   +6 more
core   +2 more sources

Xanthine oxidase and aldehyde oxidase contribute to allopurinol metabolism in rats

open access: yesJournal of Pharmaceutical Health Care and Sciences, 2022
Background Allopurinol is used to treat hyperuricemia and gout. It is metabolized to oxypurinol by xanthine oxidase (XO), and aldehyde oxidase (AO). Allopurinol and oxypurinol are potent XO inhibitors that reduce the plasma uric acid levels.
Yoshitaka Tayama   +5 more
doaj   +1 more source

Evaluation of the Usefulness of Topological Indices for Predicting Selected Physicochemical Properties of Bioactive Substances with Anti-Androgenic and Hypouricemic Activity

open access: yesMolecules, 2023
Due to the observed increase in the importance of computational methods in determining selected physicochemical parameters of biologically active compounds that are key to understanding their ADME/T profile, such as lipophilicity, there is a great need ...
Dawid Wardecki   +2 more
doaj   +1 more source

Allopurinol non-covalently facilitates binding of unconventional peptides to HLA-B*58:01

open access: yesScientific Reports, 2023
Allopurinol, widely used in gout treatment, is the most common cause of severe cutaneous adverse drug reactions. The risk of developing such life-threatening reactions is increased particularly for HLA-B*58:01 positive individuals.
Xuelu Huan   +3 more
doaj   +1 more source

Pharmacodynamics of oxypurinol after administration of allopurinol to healthy subjects [PDF]

open access: yesBritish Journal of Clinical Pharmacology, 1996
1 Eight healthy subjects received 50, 100, 300, 600 and 900 mg allopurinol daily for 1 week each, in random order with 1 week separating each treatment period. The pre‐dose plasma concentration of oxypurinol, the extent of inhibition of xanthine oxidase, plasma urate concentration and urine urate excretion rate were assessed on the last 2 days of each
S, Graham   +6 more
openaire   +2 more sources

Reduction of Leukocyte Microvascular Adherence and Preservation of Blood-Brain Barrier Function by Superoxide-Lowering Therapies in a Piglet Model of Neonatal Asphyxia

open access: yesFrontiers in Neurology, 2019
Background: Asphyxia is the most common cause of brain damage in newborns. Substantial evidence indicates that leukocyte recruitment in the cerebral vasculature during asphyxia contributes to this damage. We tested the hypothesis that superoxide radical (
Jacob B. Ruden   +9 more
doaj   +1 more source

Combination treatment with 6-mercaptopurine and allopurinol in HepG2 and HEK293 cells - Effects on gene expression levels and thiopurine metabolism. [PDF]

open access: yesPLoS ONE, 2017
Combination treatment with low-dose thiopurine and allopurinol (AP) has successfully been used in patients with inflammatory bowel disease with a so called skewed thiopurine metabolite profile.
Sofie Haglund   +3 more
doaj   +1 more source

Tempol improves xanthine oxidoreductase-mediated vascular responses to nitrite in experimental renovascular hypertension

open access: yesRedox Biology, 2016
Upregulation of xanthine oxidoreductase (XOR) increases vascular reactive oxygen species (ROS) levels and contributes to nitroso-redox imbalance. However, XOR can generate nitric oxide (NO) from nitrite, and increased superoxide could inactivate NO ...
Gustavo H. Oliveira-Paula   +7 more
doaj   +1 more source

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