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- W2012605854 abstract "In Brief Aims To evaluate the vascular effects of doxazosin, an alpha-1 antagonist, in hypertensive patients with metabolic syndrome in whom the drug has previously been shown to exert beneficial metabolic actions on lipids and insulin metabolism. Experimental protocol Twelve untreated non-diabetic hypertensive patients with National Cholesterol Education Program (NCEP) ATP-III defined metabolic syndrome were assigned to three-months of treatment with doxazosin (5.5±1.9 mg/die). Study variables were measured at baseline and after treatment. End-points: forearm blood flow (strain-gauge plethysmography) responses to graded intra-arterial acetylcholine and sodium nitroprusside infusion to test endothelium-dependent and independent vasodilatation respectively. Minimum forearm vascular resistance, the ratio of mean blood pressure and post-ischaemic maximal blood flow, as an index of arteriolar structure; transcapillary albumin escape rate (the 1-h decay rate of 125I-albumin, 6–8 μC ev) as a measure of systemic capillary permeability. Lipids, fasting and post-glucose insulin were measured at baseline and after treatment. Results Doxazosin reduced blood pressure, augmented acetylcholine-mediated vasodilatation, decreased minimum resistance and, although not to a statistically significant extent, transvascular albumin leakage increased high-density lipoprotein (HDL) cholesterol while triglycerides and post-stimulative hyperinsulinemia decreased. Conclusions Doxazosin improved endothelial-mediated vasomotor function and reversed abnormal arteriolar structure in hypertensive patients with metabolic syndrome while improving lipid profile and blunting post-glucose hyperinsulinemia. Three month-treatment with doxazosin, an alpha-1 antagonist, reduced blood pressure, augmented endothelial-mediated forearm responses, decreased minimum fores resistance, an index of arteriolar remodelling, tended to normalize and abnormal systemic capillary permeability while improving the metabolic profile in non diabetic hypertensive patients with ATP-III defined Metabolic Syndrome." @default.
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- W2012605854 date "2005-02-01" @default.
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- W2012605854 title "The vascular effects of doxazosin in hypertension complicated by metabolic syndrome" @default.
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- W2012605854 doi "https://doi.org/10.1097/00019501-200502000-00012" @default.
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