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Am J Hypertens. 1994 May;7(5):416-24.

Changes in glucose, insulin, lipid, lipoprotein, and apoprotein concentrations and insulin action in doxazosin-treated patients with hypertension. Comparison between nondiabetic individuals and patients with non-insulin-dependent diabetes mellitus.

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  • 1Department of Medicine, Stanford University School of Medicine, California.


Thirty patients with hypertension were enrolled in this study, 13 had non-insulin-dependent diabetes mellitus (NIDDM) and 17 were nondiabetic. Patients were treated with doxazosin for approximately 4 months, and blood pressure fell significantly (P < .001) in both nondiabetics (149/96 to 134/85 mm Hg) and in those with NIDDM (154/96 to 143/84 mm Hg). In the nondiabetic group, doxazosin treatment was associated with significant improvement in insulin-mediated glucose disposal (P < .05) and lower plasma insulin (P < .001), and triglyceride (P < .001) concentrations measured at hourly intervals from 8 AM to 4 PM (breakfast at 8 AM and lunch at noon). In addition, fasting total plasma (P < .001) and VLDL cholesterol (P < .01), and total plasma (P < .05), VLDL (P < .08), LDL (P < .01), HDL (P < .01) triglyceride concentrations were lower following doxazosin treatments in the nondiabetic group, as was the ratio of total to HDL cholesterol (P < .001). Finally, apoprotein B concentrations fell with doxazosin in the nondiabetic group (P < .01). Significant changes seen in the group with NIDDM included a decrease in the ratio of total to HDL cholesterol (P < .001) and a fall in apoprotein B concentration (P < .05). However, values for all other variables did not change significantly with treatment in this group. Thus, doxazosin treatment of nondiabetic subjects with high blood pressure was associated with a series of changes in glucose, insulin, and lipoprotein metabolism that should decrease risk of coronary heart disease (CHD) in these individuals.(ABSTRACT TRUNCATED AT 250 WORDS)

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