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The n-hexane layer isolated from SCE had an anti-inflammatory effect. (a) Schematic of the fractionation of Saururus chinensis. (b) Determination of the anti-inflammatory fractions by estimation of nitrite production and cell viability following incubation with various fractions for 2 h. Data are the means ± SEM (n = 3), *p < 0.05. Bu: n-BuOH; EA: EtOAc; Hx: n-hexane; MC: dichloromethane; SCE: S. chinensis extract; SEM: standard error of the mean; DW: distilled water
