Results 11 to 20 of about 251,788 (307)

18Oxygen Substituted Nucleosides Combined with Proton Beam Therapy: Therapeutic Transmutation In Vitro [PDF]

open access: yesInternational Journal of Particle Therapy, 2021
Purpose: Proton therapy precisely delivers radiation to cancers to cause damaging strand breaks to cellular DNA, kill malignant cells, and stop tumor growth.
Tyvin Rich, MD   +9 more
doaj   +1 more source

1H-NMR SPECTROSCOPY TO MEASURE THE KI INDEX OF BOMBAY DUCKS DURING CHILLING STORAGE AS AN APPROACH TO DETERMINE FRESHNESS

open access: yesSqualen, 2023
The quality of fish freshness plays a crucial role in the acceptance of consumers and human health. Considering that food safety has recently become a major concern on a global scale, establishing and evaluating fish freshness is crucial for research and
Giri Rohmad Barokah   +3 more
doaj   +1 more source

Human immunodeficiency virus rebound after suppression to < 400 copies/mL during initial highly active antiretroviral therapy regimens, according to prior nucleoside experience and duration of suppression [PDF]

open access: yes, 2002
This study evaluated 1433 human immunodeficiency virus (HIV)-infected patients starting highly active antiretroviral therapy (HAART), 409 (28%) of whom had prior nucleoside experience and achieved an HIV load of
Bickel, M   +11 more
core   +1 more source

Parameterization and Application of the General Amber Force Field to Model Fluoro Substituted Furanose Moieties and Nucleosides

open access: yesMolecules, 2022
Molecular mechanics force field calculations have historically shown significant limitations in modeling the energetic and conformational interconversions of highly substituted furanose rings. This is primarily due to the gauche effect that is not easily
Diego E. Escalante   +2 more
doaj   +1 more source

Phosphorylation of purine and pyrimidine nucleosides by isolated rat liver mitochondria [PDF]

open access: yes, 1975
Formation of 5'-AMP, 5'-GMP, 5'-CMP and 5'UMP was confirmed in isolated rat liver mitochondria incubated with alpha-ketoglutarate, inorganic phosphate, purine nucleoside and pyrimidine nucleoside. Increased incorporation of 32Pi into ATP, GTP and UTP was
Inaba, Kozo, Oda, Takuzo
core   +1 more source

Oxalyl retro-peptide gelators. Synthesis, gelation properties and stereochemical effects

open access: yesBeilstein Journal of Organic Chemistry, 2010
In this work we report on gelation properties, self-assembly motifs, chirality effects and morphological characteristics of gels formed by chiral retro-dipeptidic gelators in the form of terminal diacids (1a–5a) and their dimethyl ester (1b–5b) and ...
Janja Makarević   +5 more
doaj   +1 more source

Glycosyl-Nucleolipids as New Bioinspired Amphiphiles

open access: yesMolecules, 2013
Four new Glycosyl-NucleoLipid (GNL) analogs featuring either a single fluorocarbon or double hydrocarbon chains were synthesized in good yields from azido thymidine as starting material. Physicochemical studies (surface tension measurements, differential
Philippe Barthélémy   +3 more
doaj   +1 more source

Focus on chirality of HIV-​1 non-​nucleoside reverse transcriptase inhibitors [PDF]

open access: yes, 2016
Chiral HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs) are of great interest since one enantiomer is often more potent than the corresponding counterpart against the HIV-1 wild type (WT) and the HIV-1 drug resistant mutant strains.
Famiglini, Valeria, Silvestri, Romano
core   +2 more sources

Nucleic Acid Based Fluorinated Derivatives: New Tools for Biomedical Applications

open access: yesApplied Sciences, 2012
Nucleic acid-based fluorinated derivatives, e.g., nucleosides or oligonucleotides connected to highly fluorinated chains or labeled with one or more fluorine atoms, have been investigated recently due to their high potential for biomedical applications ...
Christel Dolain   +3 more
doaj   +1 more source

Innovative Agents for Actinic Keratosis and Nanocarriers Enhancing Skin Penetration [PDF]

open access: yes, 2010
Actinic keratosis and cutaneous squamous cell carcinoma are of increasing importance with aging and increased ultraviolet light exposure in Western societies. Efficient and well-tolerated therapy is still a matter of concern.
Höltje, H.-D.   +3 more
core   +1 more source

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