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  • Title: A comparison of the effects of pioglitazone and rosiglitazone combined with glimepiride on prothrombotic state in type 2 diabetic patients with the metabolic syndrome.
    Author: Derosa G, Cicero AF, Gaddi A, Ragonesi PD, Piccinni MN, Fogari E, Salvadeo S, Ciccarelli L, Fogari R.
    Journal: Diabetes Res Clin Pract; 2005 Jul; 69(1):5-13. PubMed ID: 15955382.
    Abstract:
    OBJECTIVE: To compare the effects of glimepiride plus pioglitazone or plus rosiglitazone in diabetic patients with the metabolic syndrome on coagulation and fibrinolysis parameters. STUDY DESIGN AND METHODS: 91 type 2 diabetic patients with the metabolic syndrome participated. All patients took a fixed dose of glimepiride, 4 mg/day. We administered pioglitazone (15 mg/day) or rosiglitazone (4 mg/day) in a randomized, controlled, double-blind clinical study. We compared body mass index (BMI), glycemic control, coagulation and fibrinolysis parameters, and heart rate (HR) during 12 months of this treatment. RESULTS: A total of 87 completed the study (pioglitazone n=45 or rosiglitazone n=42). Body mass index increased after 12 months compared to baseline (p<0.05) in both groups. A significant decrease in glycated haemoglobin (HbA(1c)) was observed after 9 (p<0.05), and 12 (p<0.01) months in both groups. After 9 and 12 months, mean fasting plasma glucose (FPG) and postprandial plasma glucose (PPG) levels were lower in both groups (p<0.05 and 0.01, respectively), as were fasting plasma insulin (FPI) and postprandial plasma insulin (PPI) (p<0.05 and p<0.01, respectively). An improvement in the homeostasis model assessment index (HOMA index) was seen at 9 and 12 months (p<0.05 and 0.01, respectively) compared to the baseline value in both groups. Plasminogen activator inhibitor 1 (PAI-1) was significant lower (p<0.05) in both groups after 12 months compared to the baseline values. No changes in tissue-plasminogen activator (t-PA) and fibrinogen (Fg) were seen during the study nor were there any changes in transaminases. CONCLUSIONS: We conclude that the addition of a thiazolinedione to glimepiride treatment in type 2 diabetic subjects with the metabolic syndrome is associated with a slight but significant reduction of PAI-1 value, related to a similar reduction in insulinresistance.
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