Results 11 to 20 of about 74,149 (232)

One-Step and Colorimetric Detection of Fish Freshness Indicator Hypoxanthine Based on the Peroxidase Activity of Xanthine Oxidase Grade I Ammonium Sulfate Suspension

open access: yesFrontiers in Microbiology, 2021
The global food waste problem, especially aquatic product spoilage, stimulates the accurate freshness analysis of food products. However, it still remains a great challenge to realize in-field determination of fish freshness at the time of use.
Chen Guo   +4 more
doaj   +1 more source

Simultaneous Determination of Xanthine and Hypoxanthine Using Polyglycine/rGO-Modified Glassy Carbon Electrode

open access: yesMolecules, 2023
A novel electrochemical sensor was developed for selective and sensitive determination of xanthine (XT) and hypoxanthine (HX) based on polyglycine (p-Gly) and reduced graphene oxide (rGO) modified glassy carbon electrode (GCE). A mixed dispersion of 7 μL
Ting Wang   +5 more
doaj   +1 more source

Differential regulation of hypoxanthine and xanthine by obesity in a general population

open access: yesJournal of Diabetes Investigation, 2020
Aims/Introduction Uric acid is synthesized by oxidation of hypoxanthine and xanthine using a catalyzing enzyme, xanthine oxidoreductase (XOR), which can be a source of reactive oxygen species.
Masato Furuhashi   +12 more
doaj   +1 more source

Molecularly Imprinted Polymer-Based Electrochemical Sensor for Rapid and Selective Detection of Hypoxanthine

open access: yesBiosensors, 2022
In this paper, we report on the coupling of an electrochemical transducer with a specifically designed biomimetic and synthetic polymeric layer that serves as a recognition surface that demonstrates the molecular memory necessary to facilitate the stable
Diksha Garg, Neelam Verma, Monika
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

Hypoxanthine uptake by human erythrocytes [PDF]

open access: yesFEBS Letters, 1979
It is well established that the uptake of hypoxan- thin, by human erythrocytes is mediated by its incorporation into IMP [ 11. The synthesis of this nucleotide is dependent on the intracellular availability of 5phosphoribosyl o-1-pyrophosphate (PRPP) and on the activity of hypoxanthine-guanine phospho- ribosyltransferase (HGPRT) [ 11.
GIACOMELLO, Alessandro   +1 more
openaire   +4 more sources

Adeno‐associated virus serotype 2 capsid variants for improved liver‐directed gene therapy

open access: yesHepatology, EarlyView., 2022
Abstract Background and Aims Current liver‐directed gene therapies look for adeno‐associated virus (AAV) vectors with improved efficacy. With this background, capsid engineering is explored. Whereas shuffled capsid library screenings have resulted in potent liver targeting variants with one first vector in human clinical trials, modifying natural ...
Nadja Meumann   +25 more
wiley   +1 more source

Uptake of purines in Plasmodium falciparum-infected human erythrocytes is mostly mediated by the human Equilibrative Nucleoside Transporter and the human Facilitative Nucleobase Transporter [PDF]

open access: yes, 2010
<b>Background</b>: Plasmodium parasites are unable to synthesize purines de novo and have to salvage them from the host. Due to this limitation in the parasite, purine transporters have been an area of focus in the search for anti-malarial ...
De Koning, H.P.   +2 more
core   +4 more sources

Study on the efficacy of compound porcine cerebroside and ganglioside injection in patients with ischemic stroke: A randomized, single‐center, open‐label, prospective study

open access: yesIbrain, EarlyView., 2023
Compound porcine perebroside and ganglioside injection (CPCGI) was used to treat ischemic stroke. However, there was no clinical evidence of low‐dose CPCGI. We conducted a clinical study to analyze whether the clinical results of low‐dose and standard‐dose CPCGI in patients with ischemic stroke were different.
Ya Chen   +8 more
wiley   +1 more source

Integrative Analysis of Metabolomics and Transcriptomics Data Identifies Prognostic Biomarkers Associated With Oral Squamous Cell Carcinoma

open access: yesFrontiers in Oncology, 2021
BackgroundOral squamous cell carcinoma (OSCC) is the most malignant neoplasm in oral cancer. There is growing evidence that its progression involves altered metabolism.
Lihua Zuo   +9 more
doaj   +1 more source

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