Structure-Activity Relationship Study of Dibenzocyclooctadiene Lignans Isolated from Schisandra chinensis on Lipopolysaccharide-Induced Microglia Activation
2014
To explore the relationship of the dibenzocyclooctadiene lignans from Schisandra chinensis to their anti-inflammatory activities, series of dibenzocyclooctadiene lignans were isolated and assessed by testing their inhibitory effects on nitric oxide production in lipopolysaccharide-induced BV2 mouse microglia. It was found, for the first time, that dibenzocyclooctadiene lignans which have S -biphenyl and methylenedioxy groups strongly inhibited LPS-induced microglia activation. The methoxy group on the cyclooctadiene introduced more effectiveness, but the
presence of an acetyl group on the cyclooctadiene or hydroxyl group on C-7 decreased the inhibitory activity.
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