"Natural anthraquinones probed as Type I and Type II photosensitizers: singlet oxygen and superoxide anion production"

NÚÑEZ MONTOYA S.C., COMINI L.R., SARMIENTO M., BECERRA C., ALBESA I., ARGÜELLO GUSTAVO A., CABRERA, J.L

Elsevier IF=1.841 (2004-JCR)

Año: 2005 vol. 78 p. 77 - 77

p style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt 49.65pt" class="MsoNormal">Abstract: The photosensitizing properties of six anthraquinones (AQs): soranjidiol (1), soranjidiol-1-methyl ether (2), rubiadin (3), rubiadin-1-methyl ether (4), damnacanthal (5) and damnacanthol (6), isolated from leaves and stems of Heterophyllaea pustulata Hook. f. (Rubiaceae) were studied. By means of photobiological and photophysical methods in vitro, the type of photosensitization that these metabolites are capable of producing was determined. Whereas the photosensitized generation of superoxide anion radical (O2