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  • Title: Lipid profile, oxidant-antioxidant status and glycoprotein components in hyperlipidemic patients with/without diabetes.
    Author: Kaviarasan K, Arjunan MM, Pugalendi KV.
    Journal: Clin Chim Acta; 2005 Dec; 362(1-2):49-56. PubMed ID: 16198326.
    Abstract:
    BACKGROUND: Plasma lipoproteins are protected against oxidative modification by the antioxidant defense system. An imbalance in the antioxidant defense system seems to result from the accumulation of low density lipoprotein (or) very low density lipoprotein in the course of hyperlipidemia. METHODS: The lipid profile, glycoprotein components, glucose, total proteins, albumin, lipid peroxidation and antioxidant status of plasma and erythrocytes were investigated in hyperlipidemic patients and hyperlipidemic patients with diabetes on treatment with glibenclamide (or) glipizide along with normal subjects and compared. RESULTS: A significant increase was observed in the levels of total cholesterol (TC), VLDL-C, triglycerides (TG), lipid peroxidation, ceruloplasmin (CP), glycoprotein components and glucose in the hyperlipidemic patients with/without diabetes and the increase was more pronounced (except TC) in patients with diabetes. The activities of erythrocyte antioxidant enzymes such as superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) and plasma concentrations of vitamins C and E, and reduced glutathione (GSH) decreased in hyperlipidemic patients with/without diabetes. GPx, CAT, vitamin C and GSH levels exhibited a further decrease in hyperlipidemic patients with diabetes. CONCLUSION: An enhanced levels of VLDL-C, TC/HDL-C ratio, TG, lipid peroxidation, glycoprotein components, and decreased concentrations of total proteins (TPs) and albumin were observed in hyperlipidemic patients with diabetes while the decrease was more marked in GSH, vitamin C, CAT and GPx among antioxidants.
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