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Change in oxidative DNA damage, assessed by 8-oxoguanine fluorescence, in mononuclear cells isolated from type 2 diabetes patients before (GTT1) and after (GTT2) taking 1200 IU/day α-tocopherol or matched placebo for 4 weeks, following a glucose tolerance test. Data shown are means; error bars represent 95% confidence intervals. AT: α-tocopherol, GTT: Glucose Tolerance Test
