Effects of olmesartan vs irbesartan on metabolic parameters and visfatin in hypertensive obese women.

BACKGROUND Angiotensin II regulates the production of adipokines. The objective was to study the effect of treatment with irbesartan versus olmesartan in obese hypertensive women. SUBJECTS A sample of 34 obese hypertensive women was analyzed in a prospective way with a randomized trial. Patients were randomized to irbesartan (300 mg/day) or olmesartan (40 mg/day) for 3 months. Weight, body mass index, blood pressure, basal glucose, insulin, total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides, HOMA and visfatin were determined at basal time and after 3 months of treatment. RESULTS Thirty four patients gave informed consent and were enrolled in the study. A significative decrease in systolic and diastolic blood pressures was reached without changes in weight. Patients treated with olmesartan had a significative decrease of total cholesterol, LDL cholesterol, insulin, HOMA and visfatin levels. Decrease in total cholesterol and LDL cholesterol was similar with both angiotensin receptor blockers. Decrease in insulin (2.28 +/- 2.77 vs 0.66 +/- 4.4 mUI/L: p < 0.05), HOMA (0.69 +/- 1.1 vs 0.48 +/- 1.6 units: p < 0.05) and visfatin (5.16 +/- 13 vs 1.85 +/- 9.1 ng/ml: p < 0.05) levels was higher in olmesartan than irbesartan group. CONCLUSION The administration of olmesartan improved blood pressure, insulin, HOMA, visfatin and lipid profile in hypertensive obese women. Irbesartan improved blood pressure and lipid levels.