Mechanical forces and the activation of the renin-angiotensin system (RAS) may alter the NO/O2(*-) balance, imparing endothelial nitric oxide (NO) availability. This study investigates the link between RAS and NO/O2(*-) balance in human aortic endothelial cells (HAEC) exposed to pulsatile stretch with and without ACE inhibitor quinaprilat or angiotensin II type 1 (AT(1)) receptor antagonist losartan. Pulsatile stretch increased Ang II levels and O2(*-) production, reducing NO release. RAS blockade with quinaprilat or losartan restored the balance between NO and O2(*-). These results provide a molecular basis for understanding the vascular protective effects of ACE inhibition and AT(1) receptor antagonism.
Pulsatile stretch induces release of angiotensin II and oxidative stress in human endothelial cells: effects of ACE inhibition and AT1 receptor antagonism / Delli Gatti, C; Osto, E; Kouroedov, A; Eto, M; Shaw, S; Volpe, Massimo; Lüscher, Tf; Cosentino, Francesco. - In: CLINICAL AND EXPERIMENTAL HYPERTENSION. - ISSN 1064-1963. - 30(2008), pp. 616-627. [10.1080/10641960802443183]
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Titolo: | Pulsatile stretch induces release of angiotensin II and oxidative stress in human endothelial cells: effects of ACE inhibition and AT1 receptor antagonism. | |
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Data di pubblicazione: | 2008 | |
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Citazione: | Pulsatile stretch induces release of angiotensin II and oxidative stress in human endothelial cells: effects of ACE inhibition and AT1 receptor antagonism / Delli Gatti, C; Osto, E; Kouroedov, A; Eto, M; Shaw, S; Volpe, Massimo; Lüscher, Tf; Cosentino, Francesco. - In: CLINICAL AND EXPERIMENTAL HYPERTENSION. - ISSN 1064-1963. - 30(2008), pp. 616-627. [10.1080/10641960802443183] | |
Handle: | http://hdl.handle.net/11573/381379 | |
Appartiene alla tipologia: | 01a Articolo in rivista |