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  • Title: Metabolic control may influence the increased superoxide generation in diabetic serum.
    Author: Ceriello A, Giugliano D, Quatraro A, Dello Russo P, Lefèbvre PJ.
    Journal: Diabet Med; 1991 Jul; 8(6):540-2. PubMed ID: 1653676.
    Abstract:
    Superoxide anion (O2-) generation in serum from 10 Type 1 diabetic patients and 10 normal subjects was measured ex vivo. The amount of O2- production was significantly increased in diabetic serum 0.41 +/- 0.04 (+/- SD) vs 0.14 +/- 0.04 mumol l-1 min-1, p less than 0.001) and correlated with fasting plasma glucose and glycosylated protein levels in both diabetic (r = 0.72, p less than 0.01, and r = 0.62, p less than 0.05) and normal r = 0.75, p less than 0.01 and r = 0.64, p less than 0.05) subjects. Improved metabolic control in the diabetic patients was associated with a reduction of serum O2- production (0.28 +/- 0.06 mumol l-1 min-1, p less than 0.01), but the correlation between O2- levels and fasting plasma glucose and glycosylated protein concentrations was retained (r = 0.86 and r = 0.72, respectively, both p less than 0.01).
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