PMID: 9548208Aug 1, 1997Paper

A long-term comparison between enalapril and captopril on insulin sensitivity in normotensive non-insulin dependent diabetic volunteers

Journal of Clinical Pharmacy and Therapeutics
H C TillmannM C Robertson

Abstract

There are conflicting reports about the effects of angiotensin converting enzyme inhibitors on insulin sensitivity and glycaemic control. In addition, the chronic effects of ACEI on insulin sensitivity in normotensive but insulin resistant individuals have been controversial. To determine the long-term effects of low-dose captopril or enalapril on insulin sensitivity and lipid parameters in normotensive non-insulin dependent diabetic volunteers. Twenty-eight normotensive non-insulin dependent diabetes mellitus subjects on diet alone or diet plus oral hypoglycaemic agents were randomized in a single-blind cross-over study to receive either captopril (12.5 mg daily) or enalapril (5 mg daily). Initially, captopril was compared with enalapril for 28 days with a 28-day washout period between drug regimens. For the long-term study, the subjects then remained on the second ACEI for a further 11 months. Insulin sensitivity was measured using the isoglycaemic hyperinsulinaemic clamp (insulin infusion rate 20 mIU/kg/min) at the start and completion of each part of the cross-over study and then at 3, 6 and 12 months of drug therapy. Fasting glucose, insulin, HbA1, lipids and lipoproteins were measured at the start of each clamp. No first ...Continue Reading

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