Angiotensin II and angiotensin 1-7: which is their role in atrial fibrillation?
Heart Fail Rev
; 25(2): 367-380, 2020 03.
Article
en En
| MEDLINE
| ID: mdl-31375968
ABSTRACT
Atrial fibrillation (AF) is a significant cause of morbidity and mortality as well as a public health burden considering the high costs of AF-related hospitalizations. Pre-clinical and clinical evidence showed a potential role of the renin angiotensin system (RAS) in the etiopathogenesis of AF. Among RAS mediators, angiotensin II (AII) and angiotensin 1-7 (A1-7) have been mostly investigated in AF. Specifically, the stimulation of the pathway mediated by AII or the inhibition of the pathway mediated by A1-7 may participate in inducing and sustaining AF. In this review, we summarize the evidence showing that both RAS pathways may balance the onset of AF through different biological mechanisms involving inflammation, epicardial adipose tissue (EAT) accumulation, and electrical cardiac remodeling. EAT is a predictor for AF as it may induce its onset through direct (infiltration of epicardial adipocytes into the underlying atrial myocardium) and indirect (release of inflammatory adipokines, the stimulation of oxidative stress, macrophage phenotype switching, and AF triggers) mechanisms. Classic RAS blockers such as angiotensin converting enzyme inhibitors (ACE-I) and angiotensin receptor blockers (ARB) may prevent AF by affecting the accumulation of the EAT, representing a useful therapeutic strategy for preventing AF especially in patients with heart failure and known left ventricular dysfunction. Further studies are necessary to prove this benefit in patients with other cardiovascular diseases. Finally, the possibility of using the A1-7 or ACE2 analogues, to enlarge current therapeutic options for AF, may represent an important field of research.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Fragmentos de Péptidos
/
Fibrilación Atrial
/
Angiotensina I
/
Angiotensina II
/
Remodelación Atrial
Límite:
Humans
Idioma:
En
Revista:
Heart Fail Rev
Asunto de la revista:
CARDIOLOGIA
Año:
2020
Tipo del documento:
Article
País de afiliación:
Italia