Results 81 to 90 of about 339,632 (390)

The role of the neuromodulator adenosine in alcohols actions. [PDF]

open access: yes, 1997
The interaction between the neuromodulator adenosine and adenosine receptors on the surface of neurons modifies the neurons responses to neurotransmitters.
Diamond, Ivan, Dohrman, D, Gordon, A
core  

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

Glycosylation reactions mediated by hypervalent iodine: application to the synthesis of nucleosides and carbohydrates

open access: yesBeilstein Journal of Organic Chemistry, 2018
To synthesize nucleoside and oligosaccharide derivatives, we often use a glycosylation reaction to form a glycoside bond. Coupling reactions between a nucleobase and a sugar donor in the former case, and the reaction between an acceptor and a sugar donor
Yuichi Yoshimura   +4 more
doaj   +1 more source

General and Specific Promotion of Flagellar Assembly by a Flagellar Nucleoside Diphosphate Kinase [PDF]

open access: yes, 2017
Nucleoside diphosphate kinases (NDKs) play a central role in diverse cellular processes using the canonical NDK activity or alternative mechanisms that remain poorly defined.
Ciruelas, Kristine S.   +9 more
core   +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

Nucleophilic displacement reactions of 5′-derivatised nucleosides in a vibration ball mill

open access: yesBeilstein Journal of Organic Chemistry, 2017
Vibration ball-milling in a zirconia-lined vessel afforded clean and quantitative nucleophilic displacement reactions between 4-methoxybenzylthiolate salts and nucleoside 5′-halides or 5′-tosylates in five to 60 minutes.
Olga Eguaogie   +8 more
doaj   +1 more source

Vitamin E Phosphate Nucleoside Prodrugs: A Platform for Intracellular Delivery of Monophosphorylated Nucleosides

open access: yesPharmaceuticals, 2018
Vitamin E phosphate (VEP) nucleoside prodrugs are designed to bypass two mechanisms of tumor resistance to therapeutic nucleosides: nucleoside transport and kinase downregulation.
Richard Daifuku   +2 more
doaj   +1 more source

Synthesis and Conformational Analysis of Fluorinated Uridine Analogues Provide Insight into a Neighbouring-Group Participation Mechanism

open access: yesMolecules, 2020
Fluorinated nucleoside analogues have attracted much attention as anticancer and antiviral agents and as probes for enzymatic function. However, the lack of direct synthetic methods, especially for 2′,3′-dideoxy-2′,3′-difluoro nucleosides, hamper their ...
Freideriki Michailidou   +5 more
doaj   +1 more source

Kinetic analysis of an efficient DNA-dependent TNA polymerase. [PDF]

open access: yes, 2005
alpha-l-Threofuranosyl nucleoside triphosphates (tNTPs) are tetrafuranose nucleoside derivatives and potential progenitors of present-day beta-d-2'-deoxyribofuranosyl nucleoside triphosphates (dNTPs).
Chaput, John C   +6 more
core   +2 more sources

Nucleoside modifications in the regulation of gene expression: focus on tRNA

open access: yesCellular and Molecular Life Sciences, 2016
Both, DNA and RNA nucleoside modifications contribute to the complex multi-level regulation of gene expression. Modified bases in tRNAs modulate protein translation rates in a highly dynamic manner. Synonymous codons, which differ by the third nucleoside
M. Duechler   +3 more
semanticscholar   +1 more source

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