Corcoran Lecture. Angiotensin-converting enzyme inhibition and the heart.
Corcoran Lecture. Angiotensin-converting enzyme inhibition and the heart.
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科克伦讲座。
DOI:
10.1161/01.hyp.23.6.813
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
Gavras,H
中科院分区:
文献类型:
--
作者:
Gavras,H
Research in the pathophysiology of hypertension and the development of antihypertensive treatments has evolved with long strides over the last decades. With every new therapeutic modality introduced in the field, the immediate objective has been the safe and effective lowering of blood pressure. Implicit is the expectation, established by the classic multicenter trials in the 1960s, that such lowering will prevent the complications of untreated hypertension. Yet most epidemiologic studies have shown a surprising lack of significant effect of antihypertensive therapy on the incidence of ischemic heart disease. 1 This has led to the notion that such cardiac disease may not be simply a complication resulting from high blood pressure per se but rather a parallel product of some of the same pathophysiological alterations that characterize the hypertensive process. The logical upshot of this reasoning is that a successful therapy should address as many as possible of these alterations that constitute known coronary risk factors to protect the heart. It is my belief that angiotensin-converting enzyme (ACE) inhibition is unique among antihypertensive modalities in offering the greatest potential for cardioprotection. 2 Because of its dual action—inhibition of angiotensin II (Ang II) and potentiation of bradykinin3-4—it benefits, directly or indirectly, a large number of risk factors influenced by either one or both of these vasoactive hormones. In addition to regulating systemic blood pressure levels and sodium handling, these hormones regulate preferentially the vascular tone of vital organs and especially that of the coronary vasculature; modulate the sympathoadrenal system with its vasoconstrictor, electrophysiological, and metabolic actions; affect the growth of cardiac myocytes and vascular smooth muscle cells, the generation of autocrine-paracrine factors by endothelial cells, the sensitivity to insulin, and the rate of glucose uptake; and alter overall cardiac function. In this brief review I will present experimental and clinical evidence in support of these statements, referring to the recent large multicenter trials that have demonstrated improved morbidity and mortality in patients with myocardial dysfunction and/or coronary disease treated with ACE inhibition. I will close with a tentative look in the future—the potential of genetic epidemiology to predict who might derive the greatest