Comparable attenuation of Abeta(25-35)-induced neurotoxicity by quercitrin and 17b-estradiol in cultured rat hippocampal neurons.
Comparative study of quercetin and its two glycoside derivatives quercitrin and rutin against methylmercury (MeHg)-induced ROS production in rat brain slices.
anti-inflammatory, anti-malarial, and anti-venereal; a number of phytochemicals have been reported from extracts of leaves and lianas of the plant, namely, corymboside, vicenin-2, quercitrin, chlorogenic acid, isochlorogenic acid, lupeol, b-sitosterol, b-sitosterylglucoside, allantoin, and lapachol; anti-tumoral and anti-trypanosomal activities have been demonstrated of extracts and components (Duarte et al.
Recent studies show that quercetin glycosides flavonoids, like quercitrin (QI), can be metabolized into quercetin aglycone (QE) and quercetin conjugates (Walle 2004; Wang and Morris 2005; Spencer et al.
For quercitrin (QI) isolation, the extract was partitioned with dichloromethane at pH 2 and then pH 11, and the residual aqueous phase was partitioned with ethyl acetate.
Indeed, the anti-anaphylactic activity of quercitrin was obtained with an oral treatment during 14 days (Cruz et al.
n] fragmentation patterns and DAD spectra and by spiking the extract with authentic standards, hyperoside (peak 1), isoquercitrin (peak 2) and quercitrin
(peak 4) could be unambiguously identified.
Peaks 1, 2 and 3 were identified as quercetin, rutin (quercetin-3-rutinoside) and quercitrin
(quercetin-3-O-[alpha]-L-rhamnoside), respectively, when retention times and molecular weights of the three peaks were compared with those of standard quercetin, rutin and quercitrin
by LC and LC/MS analysis.
In contrast, glycosides of quercetin, rutin (3-rutinoside) and quercitrin (3-rhamnoside) showed slight enhancement or weak inhibition of PG[E.
The glycosides of the various flavonoids exhibit lower inhibitory activities than their corresponding aglycones; for example, rutin and quercitrin vs.
bc] Isorhamnetin > 1000 Rutin > 1000 Quercitrin > 1000 Robinetin > 1000 Quercetagetin > 1000 Myricetin > 1000 Flavanones Naringenin 7.
Pharmacological studies of Houttuyniae herba: the anti_inflammatory effect of quercitrin