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  • Title: [Renin-angiotensin system modulation: instructions for use].
    Author: Bellis A, Rozza F, Crispo S, Trimarco B.
    Journal: G Ital Cardiol (Rome); 2008 Feb; 9(2):79-89. PubMed ID: 18383770.
    Abstract:
    Angiotensin-converting enzyme (ACE) inhibitors and AT1 receptor blockers have long been considered as two classes of drugs with strictly comparable effect in cardiovascular diseases, on the assumption that both classes act on the renin-angiotensin-aldosterone system. The results of large clinical intervention trials, which failed to demonstrate any significant difference between the effects of these two pharmacological classes in patients with essential hypertension, acute myocardial infarction and heart failure, supported this concept. The recent observation that a combination of ACE-inhibitors and AT1 receptor blockers improves the prognosis of these pathological conditions better than monotherapy at higher doses focused on the difference between their mechanisms of action. The results of pathophysiological studies have suggested that in the heart, as well as in the kidney, AT1 receptor blockers act in the early stages of the disease, improving left ventricular dysfunction in hypertensive patients and preventing microalbuminuria in diabetic animals. It seems reliable to suggest that AT1 receptor blockers are to be preferred to ACE-inhibitors for an early prevention of cardiovascular and renal disease. The new inhibitors of renin activity may further amplify our chances, also blocking the negative effects mediated by angiotensin II escape and by stimulation of the prorenin/renin receptors.
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