Effect of Delapril/Manidipine vs Olmesartan/ Hydrochlorothiazide Combination on Insulin Sensitivity and Fibrinogen in Obese Hypertensive Patients
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概要
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Objective To compare the effect of delapril/manidipine vs olmesartan/hydrochlorothiazide (HCTZ) combination on insulin sensitivity and plasma fibrinogen in obese hypertensive patients. Patients and Methods After a 4-week placebo period, 88 obese, hypertensive (DBP >95 and <110 mmHg) outpatients were randomized to delapril 30 mg/manidipine 10 mg combination or to olmesartan 20 mg/HCTZ 12.5 mg combination for 24 weeks according to a prospective, randomized, open-label, blinded endpoint, parallel group design. At the end of the placebo period and treatment period, clinical BP, fasting plasma glucose (FPG), plasma insulin, insulin sensitivity (by euglycemic hyperinsulinemic clamp) and plasma fibrinogen were evaluated. Insulin sensitivity was expressed as the amount of glucose infused during the last 30 minutes (glucose infusion rate, GIR) in mg/Kg/min. The total glucose requirement (TGR) to maintain a steady-state blood glucose level in response to a defined increase in plasma insulin concentration was also evaluated. Results Both combinations significantly reduced SBP/DBP values (-22.3/16.4 mmHg and -22.6/17.2 mmHg, respectively, all p <0.001 vs placebo). GIR was significantly increased only by delapril/manidipine (+3.01 mg/min/Kg, p=0.038 vs placebo), the difference between treatments being significant (p <0.05). TGR was significantly increased by delapril/manidipine (+9.7 g, p=0.034), while it was unaffected by olmesartan/HCTZ. Plasma insulin as well as fibrinogen were significantly reduced by delapril/manidipine (-17.8 pmol/l, p=0.047 and -67.5 mg/dl, p=0.021, respectively), but not by olmesartan/HCTZ, the difference between the two treatments being statistically significant (p <0.05). Conclusion In obese hypertensive patients the delapril/manidipine combination but not the olmesartan/HCTZ combination significantly decreased insulin resistance and plasma fibrinogen levels, despite the similar BP lowering efficacy.
著者
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Corradi Luca
Department Of Internal Medicine And Therapeutics Centro Ipertensione E Fisiopatologia Cardiovascolar
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Preti Paola
Department Of Internal Medicine And Therapeutics Centro Ipertensione E Fisiopatologia Cardiovascolar
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Zoppi Annalisa
Department Of Internal Medicine And Therapeutics Centro Ipertensione E Fisiopatologia Cardiovascolar
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Derosa Giuseppe
Department Of Internal Medicine And Therapeutics Centro Ipertensione E Fisiopatologia Cardiovascolar
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Fogari Roberto
Department Of Internal Medicine And Therapeutic Clinica Medica Ii Irccs Policlinico S. Matteo Univer
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Mugellini Amedeo
Department Of Internal Medicine And Therapeutics Centro Ipertensione E Fisiopatologia Cardiovascolar
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Lazzari Pierangelo
Department Of Internal Medicine And Therapeutics Centro Ipertensione E Fisiopatologia Cardiovascolar
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