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  • Title: Postprandial hypertriglyceridemia and oxidative stress in patients of type 2 diabetes mellitus with macrovascular complications.
    Author: Saxena R, Madhu SV, Shukla R, Prabhu KM, Gambhir JK.
    Journal: Clin Chim Acta; 2005 Sep; 359(1-2):101-8. PubMed ID: 15893742.
    Abstract:
    BACKGROUND: Oxidative stress has been implicated in vascular complications of diabetes mellitus (DM). This study aims to evaluate the relationship between postprandial hypertriglyceridemia (PP-HTG) and oxidative stress in Indian patients of type 2 DM with macrovascular complications. METHODS: Plasma triglycerides (TG), thiobarbituric acid reactive substances (TBARS), erythrocyte reduced glutathione (GSH) and superoxide dismutase (SOD) were measured in fasting and postprandial (PP) state at 2, 4, 6 and 8 h after a high fat meal challenge in controls (Group I) and patients of type 2 DM without (Group II) and with macrovascular complications (Group III). RESULTS: Postprandial TGs increased significantly in patients with type 2 DM, which showed an exaggerated response to high fat meal challenge in Group III as compared to Group II. Highest PP-TBARS were also observed in Group III which correlated positively with TG. However, GSH and SOD were lower in both groups of diabetics as compared to controls. CONCLUSIONS: The magnitude of PP-HTG appears to be the major determinant of oxidative stress in type 2 DM, which along with a compromised antioxidant status may lead to endothelial dysfunction and macrovascular complications.
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