Results 21 to 30 of about 37,185 (261)

Strained Conformations of Nucleosides in Active Sites of Nucleoside Phosphorylases

open access: yesBiomolecules, 2020
Nucleoside phosphorylases catalyze the reversible phosphorolysis of nucleosides to heterocyclic bases, giving α-d-ribose-1-phosphate or α-d-2-deoxyribose-1-phosphate. These enzymes are involved in salvage pathways of nucleoside biosynthesis. The level of
Irina A. Il’icheva   +2 more
doaj   +1 more source

Testicular disposition of clofarabine in rats is dependent on equilibrative nucleoside transporters

open access: yesPharmacology Research & Perspectives, 2021
Acute lymphoblastic leukemia (ALL) is the most common cancer in children and adolescents. Although the 5‐year survival rate is high, some patients respond poorly to chemotherapy or have recurrence in locations such as the testis. The blood–testis barrier
Siennah R. Miller   +7 more
doaj   +1 more source

Anti-Proliferative Potential of Secondary Metabolites from the Marine Sponge Theonella sp.: Moving from Correlation toward Causation

open access: yesMetabolites, 2021
Marine sponges have been recognized as a rich source of potential anti-proliferative metabolites. Currently, there are two sponge-derived anti-cancer agents (a macrolide and a nucleoside) isolated from the Porifera phylum, suggesting the great potential ...
Kuei-Hung Lai   +9 more
doaj   +1 more source

An Efficient and Facile Methodology for Bromination of Pyrimidine and Purine Nucleosides with Sodium Monobromoisocyanurate (SMBI)

open access: yesMolecules, 2013
An efficient and facile strategy has been developed for bromination of nucleosides using sodium monobromoisocyanurate (SMBI). Our methodology demonstrates bromination at the C-5 position of pyrimidine nucleosides and the C-8 position of purine ...
Roger Stromberg, Jyotirmoy Maity
doaj   +1 more source

Urinary nucleosides as biomarkers of breast, colon, lung, and gastric cancer in Taiwanese.

open access: yesPLoS ONE, 2013
Urinary nucleosides are associated with many types of cancer. In this study, six targeted urinary nucleosides, namely adenosine, cytidine, 3-methylcytidine, 1-methyladenosine, inosine, and 2-deoxyguanosine, were chosen to evaluate their role as ...
Wei-Yi Hsu   +5 more
doaj   +1 more source

Targeted metabolomics analysis of nucleosides and the identification of biomarkers for colorectal adenomas and colorectal cancer

open access: yesFrontiers in Molecular Biosciences, 2023
The morbidity and mortality of colorectal cancer (CRC) have been increasing in recent years, and early detection of CRC can improve the survival rate of patients. RNA methylation plays crucial roles in many biological processes and has been implicated in
Weifang Zheng   +9 more
doaj   +1 more source

Marine Nucleosides: Structure, Bioactivity, Synthesis and Biosynthesis

open access: yesMarine Drugs, 2014
Nucleosides are glycosylamines that structurally form part of nucleotide molecules, the building block of DNA and RNA. Both nucleosides and nucleotides are vital components of all living cells and involved in several key biological processes.
Ri-Ming Huang   +5 more
doaj   +1 more source

Identification of tRNA nucleoside modification genes critical for stress response and development in rice and Arabidopsis

open access: yesBMC Plant Biology, 2017
Background Modification of nucleosides on transfer RNA (tRNA) is important either for correct mRNA decoding process or for tRNA structural stabilization.
Youmei Wang   +6 more
doaj   +1 more source

Synthesis of Natural Product-Like Tricyclic Higher-Carbon Sugar Nucleosides

open access: yesPharmaceutical Fronts, 2021
Because of the structural novelty and interesting biological profiles, the synthesis of higher-carbon sugars has been highly pursued. In this work, we first synthesized a series of structurally novel bis-uracil containing tricyclic higher-carbon sugar ...
Xiao-Han Yuan   +4 more
doaj   +1 more source

In ovo Administration of Nucleosides Improved the Performance, Apparent Metabolizable Energy and Gut Development in Broiler Chickens

open access: yesFrontiers in Veterinary Science, 2020
An in ovo study on the effect of the administration of a combination of nucleosides (25, 50, and 100 mg/egg) on hatchability, growth performance, energy metabolizability, and intestinal morphology in broilers was carried out.
Marappan Gopi   +9 more
doaj   +1 more source

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