Results 21 to 30 of about 58,088 (256)

Structural and Conformational Studies on Carboxamides of 5,6-Diaminouracils—Precursors of Biologically Active Xanthine Derivatives

Molecules, 2019
8-Arylethynylxanthine derivatives are potent, selective adenosine A2A receptor antagonists, which represent (potential) therapeutics for Parkinson’s disease, Alzheimer’s dementia, and the immunotherapy of cancer.
Daniel Marx, Gregor Schnakenburg, Stefan Grimme, Christa E. Müller   +3 more
doaj   +1 more source

Search of protein kinase CK2 inhibitors based on purine-2,6-diones derivatives [PDF]

The Ukrainian Biochemical Journal, 2017
This work is aimed to the search of protein kinase CK2 inhibitors among the purine-2,6-dione derivatives by molecular docking and biochemical tests. It was found that the most active compound 8-[2-[(3-methoxyphenyl)methylidene]hydrazine-1-yl]-3-methyl-7-(
M. V. Protopopov, O. V. Ostrynska, D. H. Ivanchenko, S. A. Starosyla, V. G. Bdzhola, M. I. Romanenko, S. M. Yarmoluk   +6 more
doaj   +1 more source

Synthesis of Novel Fluorinated Xanthine Derivatives with High Adenosine A_2B Receptor Binding Affinity

Pharmaceuticals, 2021
The G protein-coupled adenosine A2B receptor is suggested to be involved in various pathological processes accompanied by increased levels of adenosine as found in inflammation, hypoxia, and cancer.
Marcel Lindemann, Sladjana Dukic-Stefanovic, Sonja Hinz, Winnie Deuther-Conrad, Rodrigo Teodoro, Cathleen Juhl, Jörg Steinbach, Peter Brust, Christa E. Müller, Barbara Wenzel   +9 more
doaj   +1 more source

Nanomaterial-Doped Xerogels for Biosensing Measurements of Xanthine in Clinical and Industrial Applications

Gels, 2023
First-generation amperometric xanthine (XAN) biosensors, assembled via layer-by-layer methodology and featuring xerogels doped with gold nanoparticles (Au-NPs), were the focus of this study and involved both fundamental exploration of the materials as ...
Quang Minh Dang, Ann H. Wemple, Michael C. Leopold   +2 more
doaj   +1 more source

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

Biosensors, 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, Kobun Rovina, Nasir Md Nur ‘Aqilah, Joseph Merillyn Vonnie, Koh Wee Yin, Nurul Huda   +5 more
doaj   +1 more source

Simultaneous Electrochemical Analysis of Uric Acid and Xanthine in Human Saliva and Serum Samples Using a 3D Reduced Graphene Oxide Nanocomposite-Modified Electrode

Chemosensors, 2023
Accurate and effective diagnosis and individualized management of gout can be potentially achieved by detecting uric acid (UA) and xanthine (XT) simultaneously using an easy-to-use method.
Seong-Hyun Han, Ki Won Moon, Yun Jong Lee, Gi-Ja Lee   +3 more
doaj   +1 more source

Integrated Transcriptomics and Metabolomics Analyses Provide Insights into Heat Resistance in Passion Fruit (P. edulis f. flavicarpa)

Horticulturae
Passion fruit (Passiflora edulis) is an economically important fruit worldwide. However, heat stress severely threatens its production, particularly in tropical and subtropical regions.
Lin-Hua Chen, Jiong Dong, Bing-Liang Fan, Yongcai Huang, Liu Yang, Wenguo Cai, Ling-Ling Chen   +6 more
doaj   +1 more source

Xanthine oxidoreductase and xanthine oxidase in human cornea.

Histology and histopathology, 2002
Xanthine oxidoreductase (xanthine dehydrogenase + xanthine oxidase) is a complex enzyme that catalyzes the oxidation of hypoxanthine to xanthine, subsequently producing uric acid. The enzyme complex exists in separate but interconvertible forms, xanthine dehydrogenase and xanthine oxidase, which generate reactive oxygen species (ROS), a well known ...
Cejkova, J., Ardan, T., Filipec, M., Midelfart, A.   +3 more
openaire   +3 more sources

Application of Liquid Chromatography Coupled to Mass Spectrometry for Direct Estimation of the Total Levels of Adenosine and Its Catabolites in Human Blood

Pharmaceuticals
Adenosine is a multifunctional nucleoside with several roles across various levels in organisms. Beyond its intracellular involvement in cellular metabolism, extracellular adenosine potently influences both physiological and pathological processes.
Jakub Šofranko, Peter Mitro, Zora Lazúrová, Martin Jozef Péč, Tomáš Bolek, Renata Péčová, Matúš Dohál, Matej Samoš, Radovan Murín   +8 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source