Results 51 to 60 of about 42,345 (197)

Upregulation of inducible NO synthase by exogenous adenosine in vascular smooth muscle cells activated by inflammatory stimuli in experimental diabetes [PDF]

open access: yes, 2016
BACKGROUND: Adenosine has been shown to induce nitric oxide (NO) production via inducible NO synthase (iNOS) activation in vascular smooth muscle cells (VSMCs). Although this is interpreted as a beneficial vasodilating pathway in vaso-occlusive disorders,
Cignarella, Andrea   +4 more
core   +2 more sources

Lethal Mutagenesis of Picornaviruses with N-6-Modified Purine Nucleoside Analogues [PDF]

open access: yes, 2008
RNA viruses exhibit extraordinarily high mutation rates during genome replication. Nonnatural ribonucleosides that can increase the mutation rate of RNA viruses by acting as ambiguous substrates during replication have been explored as antiviral agents ...
Barr, Eric W.   +11 more
core   +4 more sources

Oxetanes: Recent Advances in Synthesis, Reactivity and Medicinal Chemistry [PDF]

open access: yes, 2016
The 4-membered oxetane ring has been increasingly exploited for its behaviors, i.e. influence on physicochemical properties as a stable motif in medicinal chemistry, and propensity to undergo ring opening reactions as a synthetic intermediate.
Bull, JA   +4 more
core   +1 more source

Recent Advances in the Chemical Synthesis and Evaluation of Anticancer Nucleoside Analogues

open access: yesMolecules, 2020
Nucleoside analogues have proven to be highly successful chemotherapeutic agents in the treatment of a wide variety of cancers. Several such compounds, including gemcitabine and cytarabine, are the go-to option in first-line treatments.
Mieke Guinan   +3 more
doaj   +1 more source

The Trypanosoma cruzi TcrNT2 Nucleoside Transporter Is a Conduit for the Uptake of 5-F-2′-Deoxyuridine and Tubercidin Analogues

open access: yesMolecules, 2022
Among the scarce validated drug targets against Chagas disease (CD), caused by Trypanosoma cruzi, the parasite’s nucleoside salvage system has recently attracted considerable attention. Although the trypanocidal activity of tubercidin (7-deazapurine) has
Mustafa M. Aldfer   +9 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

Biological evaluation and molecular modelling of didanosine derivatives [PDF]

open access: yes, 2014
Five carbonate derivatives of 50-O-20,30-dideoxyinosine (DDI, 1) have been synthesized by combination with aliphatic alcohols, with their in vitro anti-HIV activity and cytotoxicity being evaluated afterward in human peripheral blood mononuclear cells ...
Briñon, Margarita Cristina   +6 more
core   +1 more source

An enantioselective and modular platform for C4ʹ-modified nucleoside analogue synthesis enabled by intramolecular trans-acetalizations

open access: yesNature Communications
C4ʹ-modified nucleoside analogues continue to attract global attention for their use in antiviral drug development and oligonucleotide-based therapeutics. However, current approaches to C4ʹ-modified nucleoside analogues still involve lengthy (9–16 steps),
Thirupathi Nuligonda   +10 more
doaj   +1 more source

Aberrant Apoptotic Response of Colorectal Cancer Cells to Novel Nucleoside Analogues.

open access: yesPLoS ONE, 2015
Despite the increased understanding of colorectal cancer and the introduction of targeted drug therapy, the metastatic phase of the disease remains refractory to treatment.
Leonie Harmse   +4 more
doaj   +1 more source

Drug Discovery of Nucleos(t)ide Antiviral Agents: Dedicated to Prof. Dr. Erik De Clercq on Occasion of His 80th Birthday

open access: yesMolecules, 2021
Nucleoside and nucleotide analogues are essential antivirals in the treatment of infectious diseases such as human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), herpes simplex virus (HSV), varicella-zoster virus (VZV ...
Guangdi Li   +5 more
doaj   +1 more source

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