The influence of an ethyl acetate extract from Polygonum amphibium L. and quercetin-3-methyl ether isolated from them were examined on the human immune system. The investigations were made on peripheral blood mononuclear cells from healthy donors. The cells were stimulated by plant extract and
A new compounds neopaleaceolactoside (1), along with nine known compounds phyllocoumarin (2), quercetin (3), quercitrin (4), quercetin-3-methyl ether (5), vincetoxicoside B (6), isoquercitrin (7), kaempferol (8), (-)-epicatechin (9), and chlorogenic acid (10), was isolated from Polygonum paleaceum
The flavonoid aglycones were studied in the herbs of the following taxons of the Polygonum L. genus: P. hydropiper L, P. bistorta L., P. aviculare L., P. persicaria L., P. lapathifolium ssp. tomentosum (Schrank) Dans, P. lapathifolium ssp. nodosum (Pers.) Dans, P. amphibium L., P. mite Schrank, P.
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