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Figure 4 Oxidation of LDL by PMA-stimulated leukocytes in the presence of rat plasma. Administration of {alpha}- or {gamma}-tocopherol to rats significantly decreased the rate of oxidation induced by PMA-stimulated leukocytes (p < 0.05 vs. control rats). {gamma}-Tocopherol had stronger effect in reducing oxidizability of LDL than {alpha}-tocopherol (p < 0.05). Data (mean ± SD) shown are from five separate experiments.