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13C NMR spectral data and molecular descriptors to predict the antioxidant activity of flavonoids
Provedor de dados: Brazilian Journal of Pharmaceutical Sciences
Autores: Scotti,Luciana; Fernandes,Mariane Balerine; Muramatsu,Eric; Emereciano,Vicente de Paula; Tavares,Josean Fechine; Silva,Marcelo Sobral da; Scotti,Marcus Tullius.
Tissue damage due to oxidative stress is directly linked to development of many, if not all, human morbidity factors and chronic diseases. In this context, the search for dietary natural occurring molecules with antioxidant activity, such as flavonoids, has become essential. In this study, we investigated a set of 41 flavonoids (23 flavones and 18 flavonols) analyzing their structures and biological antioxidant activity. The experimental data were submitted to a QSAR (quantitative structure-activity relationships) study. NMR 13C data were used to perform a Kohonen self-organizing map study, analyzing the weight that each carbon has in the activity. Additionally, we performed MLR (multilinear regression) using GA (genetic algorithms) and molecular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoids/antioxidant activity; 13C NMR; Kohonen self-organizing map.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502011000200005