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Figure 6: Effect of Berberis aristata hydroalcoholic extract treatment on cyclooxygenase2 expression on complete Freund's adjuvant stimulated rat peritoneal macrophages. Each bar represents the mean ± standard error of the mean of six animals. Statistical analysis by oneway ANOVA followed by Dunnett's multiple comparison. *P < 0.05; **P < 0.01 
