Results 81 to 90 of about 197,362 (384)

Topoisomerase I Inhibition in ETV4‐overexpressed Non‐Small Cell Lung Cancer Promotes Replication and Transcription Mediated R‐Loop Accumulation and DNA Damage

open access: yesAdvanced Science, EarlyView.
The oncogenic ETS factor ETV4 exerts a pleiotropic control over DNA replication both in a transcription‐dependent and ‐independent fashion in NSCLC cells. High‐ETV4 expression leads to R‐loop formation and DNA damage in response to TOP1 inhibition.
Jiaxi Zhang   +14 more
wiley   +1 more source

Preparation of 4 '-spirocyclobutyl nucleoside analogues as novel and versatile adenosine scaffolds

open access: yes, 2019
Despite the large variety of modified nucleosides that have been reported, the preparation of constrained 4 '-spirocyclic adenosine analogues has received very little attention.
De Vleeschouwer, Freija   +10 more
core   +1 more source

Clinical and biochemical improvements in a patient with MNGIE following enzyme replacement. [PDF]

open access: yes, 2013
Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is a rare autosomal recessive metabolic disorder caused by a deficiency of thymidine phosphorylase (TP, EC2.4.2.4) due to mutations in the nuclear gene TYMP.
Bain, MD   +5 more
core   +1 more source

The identification and characterization of non-coding and coding RNAs and their modified nucleosides by mass spectrometry

open access: yesRNA Biology, 2014
The analysis of ribonucleic acids (RNA) by mass spectrometry has been a valuable analytical approach for more than 25 years. In fact, mass spectrometry has become a method of choice for the analysis of modified nucleosides from RNA isolated out of ...
Kirk W. Gaston, P. Limbach
semanticscholar   +1 more source

Homeostasis of Gut Microbiota Protects against Susceptibility to Fungal Pneumonia

open access: yesAdvanced Science, EarlyView.
Fungal pneumonia induces inflammation, shown by heightened IL‐6, IL‐1β, TNF‐α levels and a growth in Staphylococcus in the alveolar flora. The gut microbiota, acting through the gut‐lung axis via blood, impacts fungal pneumonia susceptibility by altering lung metabolism and inflammatory responses.
Jian Ji   +12 more
wiley   +1 more source

A Straightforward Diphenylmethyl Protection Method and Deprotection of Some Pyrimidine Nucleosides

open access: yesMolecules, 2013
Benzhydryl protection of primary and secondary alcohols has been reported previously via reaction with metal alcoholates. Our aim was to find generally useful and very mild conditions for the alcoholic protection and deprotection of nucleosides with the ...
Arthur van Aerschot, Milind Saudi
doaj   +1 more source

Distribution of Nucleosides in Populations of Cordyceps cicadae

open access: yesMolecules, 2014
A rapid HPLC method had been developed and used for the simultaneous determination of 10 nucleosides (uracil, uridine, 2'-deoxyuridine, inosine, guanosine, thymidine, adenine, adenosine, 2'-deoxyadenosine and cordycepin) in 10 populations of Cordyceps ...
Wenbo Zeng   +7 more
semanticscholar   +1 more source

Metabolic Stress‐Induced Choline Kinase α (CHKA) Activation in Endothelial Subpopulation Contributes to Diabetes‐Associated Microvascular Dysfunction

open access: yesAdvanced Science, EarlyView.
This study uncovers CHKA as a pivotal driver of vascular dysfunction in diabetic retinopathy and highlights its role in endothelial dysfunction through NAD⁺‐SIRT1‐Notch signaling. Single‐cell and functional analyses, combined with clinical and genetic validation, suggest CHKA as a promising therapeutic target for the prevention and treatment of ...
Ling Ren   +11 more
wiley   +1 more source

The Role of HINT3 in Myocardial Ischemia‐Reperfusion Injury in Male Mice: Mechanisms Involving SDHA and its Acetylation

open access: yesAdvanced Science, EarlyView.
HINT3 expression declines after myocardial ischemia‐reperfusion injury. In male mice, loss of HINT3 worsens cardiac injury and mitochondrial dysfunction, while its overexpression is protective. HINT3 binds the mitochondrial enzyme succinate dehydrogenase (SDHA) and prevents its deacetylation by histone deacetylase 1 (HDAC1), reducing succinate ...
Jiabin Yu   +7 more
wiley   +1 more source

Synthesis and Biological Activity of Reversed Pyrimidine Nucleosides

open access: yesCroatica Chemica Acta, 2015
An efficient approach to reversed nucleosides which enables their synthesis in gram quantities is described. N-1′-Pyrimidine reversed nucleosides were prepared by treating of the sodium salt of pyrimidine bases with protected 5-tosyl ribose ...
Nataša Župančić   +5 more
doaj   +1 more source

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