Columns in this figure indicate the calculated TAC of cultured macrophages stimulated with ox-LDL at 0, 25, 50, and 100 μg/mL. Several cells incubated with ox-LDL at 100 μg/mL were also administered matrine at 0.5, 1.0, and 2.0 mmol/L. [a differences were significant when compared with macrophages incubated with ox-LDL at 0 μg/mL; b differences were significant when compared with macrophages incubated with ox-LDL at 25 μg/mL; c differences were significant when compared with macrophages incubated with ox-LDL at 50 μg/mL; d differences were significant when compared with macrophages incubated with ox-LDL at 100 μg/mL and matrine at 0.0 mmol/L; e differences were significant when compared with macrophages incubated with ox-LDL at 100 μg/mL and matrine at 0.5 mmol/L; f differences were significant when compared with macrophages incubated with ox-LDL at 100 μg/ml and matrine at 1.0 mmol/L].