Summary
News in the renin-angiotensin system

Heart failure (HF) is defined as the inability of the heart to satisfy the metabolic requirements of the tissues at rest or during light exercise. This failure motivates neurohormonal response that interrelates with the hemodynamic changes related to ventricular loads more functional and myocardial structural problems that may exist.
In cardiovascular pathophysiology (HF, arterial hypertension, valvular heart disease, coronary disease, etc.) has key role the renin angiotensin system (RAS), whose main activities include to regulate blood pressure, vascular tone, volemia and to facilitate sympathetic transmission. The RAS participates in ventricular remodeling of the infarcted and of the hypertensive as well as vascular remodeling.
This review of some new aspects of the RAS, recently published in the medical literature, is accompanied by a summary of the classical concepts, to see how new they are installed, opening new pathways in physiological and pharmacological research, to significantly expand the RAS spectrum of action, axis of the pathophysiology of hypertension, heart failure and other diseases.

Keywords: Aminopeptidases ; Angiotensin ; Alamandine ; Angiotensin converting enzyme ; Chymase