Results 31 to 40 of about 311,690 (329)

Purine nucleoside phosphorylase: A new marker for free oxygen radical injury to the endothelial cell [PDF]

open access: yes, 1990
The effect of ischemia and reperfusion on purine nucleoside phosphorylase was studied in an isolated perfused rat liver model. This enzyme is localized primarily in the cytoplasm of the endothelial and Kupffer cells; some activity is associated with the ...
Abouna   +32 more
core   +1 more source

Purine nucleoside phosphorylase deficiency

open access: yesAtlas of Inherited Metabolic Diseases, 2020
People with purine nucleoside phosphorylase deficiency have low numbers of immune system cells called T cells, which normally recognize and attack foreign invaders to prevent infection.
C. Staufner
semanticscholar   +1 more source

The influence of the addition of polymers on the physico-chemical properties of bentonite suspensions [PDF]

open access: yesScience of Sintering, 2014
Bentonite clays have many applications in industries ranging from construction to cosmetics. Addition of polymers can profoundly influence the properties of bentonite suspensions and we now describe the influence of a range of different polymers.
Stojiljkovic S.   +7 more
doaj   +1 more source

Ischemic preconditioning attenuates portal venous plasma concentrations of purines following warm liver ischemia in man [PDF]

open access: yes, 2005
Background/Aims: Degradation of adenine nucleotides to adenosine has been suggested to play a critical role in ischemic preconditioning (IPC). Thus, we questioned in patients undergoing partial hepatectomy whether (i) IPC will increase plasma purine ...
Chouker, A.   +9 more
core   +1 more source

Structural and Functional Alterations of Gut Microbiota in Males With Hyperuricemia and High Levels of Liver Enzymes

open access: yesFrontiers in Medicine, 2021
Objective: To investigate the correlation between the structure and function alterations of gut microbiota and biochemical indicators in males with hyperuricemia (HUA) and high levels of liver enzymes, in order to provide new evidences and therapeutic ...
Shifeng Sheng   +12 more
doaj   +1 more source

Azathioprine and 6-mercaptopurine for maintenance of surgically-induced remission in Crohn’s disease [PDF]

open access: yes, 2014
Background Crohn’s disease (CD) is a chronic relapsing inflammatory condition. Many patients fail to achieve remission with medical management and require surgical interventions.
Angelberger   +41 more
core   +1 more source

Unified prebiotically plausible synthesis of pyrimidine and purine RNA ribonucleotides

open access: yesScience, 2019
Conditions right for making nucleosides In the absence of biological catalysts and metabolism, can atmospheric and geochemical processes provide the substrates and conditions required for production of biological molecules? Becker et al.
S. Becker   +9 more
semanticscholar   +1 more source

Cryo-EM structures demonstrate human IMPDH2 filament assembly tunes allosteric regulation

open access: yeseLife, 2020
Inosine monophosphate dehydrogenase (IMPDH) mediates the first committed step in guanine nucleotide biosynthesis and plays important roles in cellular proliferation and the immune response. IMPDH reversibly polymerizes in cells and tissues in response to
Matthew C Johnson, Justin M Kollman
doaj   +1 more source

Purine-Induced IFN-γ Promotes Uric Acid Production by Upregulating Xanthine Oxidoreductase Expression

open access: yesFrontiers in Immunology, 2022
ObjectiveLimiting purine intake, inhibiting xanthine oxidoreductase (XOR) and inhibiting urate reabsorption in proximal tubule by uricosuric drugs, to reduce serum uric acid (UA) levels, are recognized treatments for gout.
Huanhuan Wang   +9 more
doaj   +1 more source

A Novel Purine and Uric Metabolism Signature Predicting the Prognosis of Hepatocellular Carcinoma

open access: yesFrontiers in Genetics, 2022
Background: Hepatocellular carcinoma (HCC) is regarded as one of the most common cancers in the world with a poor prognosis. Patients with HCC often have abnormal purine and uric acid metabolism, but their relationship with prognosis is unclear.Methods ...
Shengjie Yang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy