Results 11 to 20 of about 85,586 (228)

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

Metabolite Ratios as Quality Indicators for Pre-Analytical Variation in Serum and EDTA Plasma

open access: yesMetabolites, 2021
In clinical diagnostics and research, blood samples are one of the most frequently used materials. Nevertheless, exploring the chemical composition of human plasma and serum is challenging due to the highly dynamic influence of pre-analytical variation ...
Sven Heiling   +9 more
doaj   +1 more source

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

Interplay of 'induced fit' and preorganization in the ligand induced folding of the aptamer domain of the guanine binding riboswitch [PDF]

open access: yes, 2006
Riboswitches are highly structured elements in the 50-untranslated regions (50-UTRs) of messenger RNA that control gene expression by specifically binding to small metabolite molecules. They consist of an aptamer domain responsible for ligand binding and
Noeske, Jonas   +5 more
core   +1 more source

Characterizing nanoplastics‐induced stress and its SERS fingerprint in an intestinal membrane model

open access: yesNano Select, 2021
Epithelium membranes provide important barrier functions, and it is important to understand how nanoparticle (NP) exposure affects their barrier function.
Qianyun Zhang, Björn M. Reinhard
doaj   +1 more source

Assessing Meat Freshness via Nanotechnology Biosensors: Is the World Prepared for Lightning-Fast Pace Methods?

open access: yesBiosensors, 2023
In the rapidly evolving field of food science, nanotechnology-based biosensors are one of the most intriguing techniques for tracking meat freshness.
Wen Xia Ling Felicia   +5 more
doaj   +1 more source

Biochemistry Changes That Occur after Death: Potential Markers for Determining Post-Mortem Interval [PDF]

open access: yes, 2013
Death is likely to result in very extensive biochemical changes in all body tissues due to lack of circulating oxygen, altered enzymatic reactions, cellular degradation, and cessation of anabolic production of metabolites.
Donaldson, Andrea
core   +1 more source

Biosensor measurement of purine release from cerebellar cultures and slices [PDF]

open access: yes, 2010
We have previously described an action-potential and Ca2+-dependent form of adenosine release in the molecular layer of cerebellar slices. The most likely source of the adenosine is the parallel fibres, the axons of granule cells. Using microelectrode
Wall, Mark J.   +2 more
core   +2 more sources

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

Late diagnosis of Lesch–Nyhan disease complicated with end-stage renal disease and tophi burst: a case report

open access: yesRenal Failure, 2020
Background Lesch–Nyhan disease (LND) is a rare X-linked recessive inborn error of purine metabolism. Late diagnosis of LND may cause significant morbidity. LND cases have never been reported in Indonesia.
Cahyani Gita Ambarsari   +6 more
doaj   +1 more source

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