In Alzheimer's disease (AD), insoluble Aβ42 peptide fragments self-aggregate and form oligomers and fibrils in the brain, causing neurotoxicity. Further, the presence of redox-active metal ions such as Cu2+ enhances the aggregation process through chelation with these Aβ42 aggregates as
Aqueous solutions of highly stable supramolecular donor-acceptor complexes of chemically nonmodified pristine C(60) fullerene molecules with H(2)O molecules (hydrated C(60) fullerene-C(60)HyFn) and their labile nano-sized clusters were examined for their antioxidant effects on removal of hydroxyl radicals (.OH) and protecting
International journal of radiation biology, 84(12), 1001-1010 (2008-12-09)
To synthesize N-(3-(3-aminopropylamino)propyl)-2-oxo-2H-chromene-3-carboxamide (7), a novel DNA-binding, coumarin-based, fluorescent hydroxylradical ((*)OH) indicator and to assess its quantum efficiency compared with that of coumarin-3-carboxylic acid (1) and N1,N12-bis[2-oxo-2H-chromene-3-carbonyl]- 1,12-diamine-4,9-diazadodecane (9). Using computer-generated molecular modeling, 7 and 9 and their respective 7-hydroxylated
Journal of inorganic biochemistry, 84(1-2), 33-37 (2001-05-02)
The copper(II) complex of coumarin-3-carboxylic acid (CcaH) has been prepared and characterized on the basis of elemental and thermal analysis, IR, Raman, EPR, UV-Vis reflectance and 1H-NMR spectra. A detail analysis of all spectra data is presented with particular emphasis
The effect of lactic acid (lactate) on Fenton based hydroxyl radical (*OH) production was studied by spin trapping, ESR, and fluorescence methods using DMPO and coumarin-3-carboxylic acid (3-CCA) as the *OH traps respectively. The *OH adduct formation was inhibited by
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