Results 31 to 40 of about 230,703 (323)

Understanding cisplatin resistance using cellular models [PDF]

open access: yes, 2007
Many mechanisms of cisplatin resistance have been proposed from studies of cellular models of resistance including changes in cellular drug accumulation, detoxification of the drug, inhibition of apoptosis and repair of the DNA adducts.
Davey, Mary W., Stordal, Britta
core   +2 more sources

A Comprehensive Database for DNA Adductomics

open access: yesFrontiers in Chemistry, 2022
The exposure of human DNA to genotoxic compounds induces the formation of covalent DNA adducts, which may contribute to the initiation of carcinogenesis.
Giorgia La Barbera   +4 more
doaj   +1 more source

Highly Improved Electrospray Ionization-Mass Spectrometry Detection of G-Quadruplex-Folded Oligonucleotides and Their Complexes with Small Molecules [PDF]

open access: yes, 2017
G-quadruplexes are nucleic acids structures stabilized by physiological concentration of potassium ions. Because low stability G-quadruplexes are hardly detectable by mass spectrometry, we optimized solvent conditions: isopropanol in a triethylamine ...
Scalabrin, Matteo   +2 more
core   +1 more source

Alcohol, Aldehydes, Adducts and Airways

open access: yesBiomolecules, 2015
Drinking alcohol and smoking cigarettes results in the formation of reactive aldehydes in the lung, which are capable of forming adducts with several proteins and DNA.
Muna Sapkota, Todd A. Wyatt
doaj   +1 more source

Unusual DNA binding modes for metal anticancer complexes [PDF]

open access: yes, 2009
DNA is believed to be the primary target for many metal-based drugs. For example, platinum-based anticancer drugs can form specific lesions on DNA that induce apoptosis.
Pizarro, Ana M., Sadler, P. J.
core   +1 more source

One-Step Synthesis, Crystallography, and Acute Toxicity of Two Boron–Carbohydrate Adducts That Induce Sedation in Mice

open access: yesPharmaceuticals
Boronic acids form diester bonds with cis-hydroxyl groups in carbohydrates. The formation of these adducts could impair the physical and chemical properties of precursors, even their biological activity. Two carbohydrate derivatives from d-fructose and d-
Ricardo Ivan Cordova-Chávez   +8 more
doaj   +1 more source

Pyrrolizidine Alkaloid-Induced Hepatotoxicity Associated with the Formation of Reactive Metabolite-Derived Pyrrole–Protein Adducts

open access: yesToxins, 2021
Pyrrolizidine alkaloids (PAs) with 1,2-unsaturated necine base are hepatotoxic phytotoxins. Acute PA intoxication is initiated by the formation of adducts between PA-derived reactive pyrrolic metabolites with cellular proteins. The present study aimed to
Jiang Ma   +4 more
doaj   +1 more source

Identification of New Markers of Alcohol-Derived DNA Damage in Humans

open access: yesBiomolecules, 2021
Alcohol consumption is a risk factor for the development of several cancers, including those of the head and neck and the esophagus. The underlying mechanisms of alcohol-induced carcinogenesis remain unclear; however, at these sites, alcohol-derived ...
Valeria Guidolin   +6 more
doaj   +1 more source

Insights into DNA platination within unusual structural settings [PDF]

open access: yes, 2011
2D [1H, 15N] HSQC NMR spectroscopy has been used to monitor reaction and product formation between [Pt(15NH3)2I2] and nucleic acids possessing irregular topologies and containing site specific phosphorothioate substitution in the phosphodiester backbone.
Harvie, Stephanie   +2 more
core   +2 more sources

Current and Future Methodology for Quantitation and Site-Specific Mapping the Location of DNA Adducts

open access: yesToxics, 2022
Formation of DNA adducts is a key event for a genotoxic mode of action, and their presence is often used as a surrogate for mutation and increased cancer risk.
Gunnar Boysen, Intawat Nookaew
doaj   +1 more source

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