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Effect of fractions of Acacia catechu heartwood on in vitro phagocytosis assay. Effect of fractions on (A) NBT reduction and (B) cellular lysosomal enzyme activity. Values represent the mean ± SEM of triplicate independent experiments; and values carrying the same alphabet did not vary significantly from each other (Tukey’s HSD; p ≤ 0.05). NBT = nitro blue tetrazolium; SEM = standard error of the mean.
