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  • Title: Further insight on the hypoglycemic and nonhypoglycemic effects of troglitazone 400 or 600 mg/d: effects on the very-low-density and high-density lipoprotein particle distribution.
    Author: Gómez-Pérez FJ, Aguilar-Salinas CA, Vázquez-Chávez C, Fanghänel-Salmón G, Gallegos-Martínez J, Gómez-Diaz RA, Salinas-Orozco S, Chavira-López IJ, Sánchez-Reyes L, Torres-Acosta EM, Tamez R, López A, Guillén LE, Cesarman G.
    Journal: Metabolism; 2002 Jan; 51(1):44-51. PubMed ID: 11782871.
    Abstract:
    The effects of troglitazone 400 or 600 mg/d on the glycemic control, very-low-density lipoprotein (VLDL), and high-density lipoprotein (HDL) subclass concentrations and plasminogen-activator inhibitor 1 (PAI-1) levels were assessed in patients with type 2 diabetes that had not been controlled with dietary treatment. This was a multicenter, open-label, parallel-groups study. It included a run-in 4-week diet period and a 24-week randomized treatment. Fifty one patients received 400 mg/d and 55 patients 600 mg. The mean HbA(1c) concentration at the end of the study was similar for both doses. Troglitazone, regardless of dose, significantly improved insulin sensitivity assessed by the homeostasis model (HOMA). PAI-1 levels were significantly decreased in both groups by 13%. Higher HDL cholesterol concentrations and lower triglycerides levels were observed at the end of treatment. Triglyceride contents were reduced only in the lighter VLDL1. The change in HDL cholesterol concentration resulted from a combination of increased HDL3 cholesterol and lower HDL2 cholesterol levels. No differences were found in the effects of both treatment groups on the evaluated parameters. Our data provide new information about the actions of the drug on the lipid profile. Troglitazone reduces triglyceride levels by lowering the triglycerides content of the VLDL1 particles and increases HDL cholesterol concentrations by increasing HDL3 cholesterol levels.
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