Key result
Irbesartan lowers blood pressure and improves acetylcholine response in hypertensive rats without altering basal NO.
Why the study?
Activation of the renin-angiotensin system was suggested to cause endothelial dysfunction, but this hypothesis had mostly been tested in the setting of exogenous AngII administration.
Does irbesartan improve NO-mediated responses and reduce oxidative stress in a rat model of high-renin hypertension?
Does irbesartan improve NO-mediated responses and reduce oxidative stress in a rat model of high-renin hypertension?
In a rat model of high-renin hypertension, there is no functional evidence of increased oxidative stress-mediated impairment of NO release, challenging a direct link between endogenous RAS activation and endothelial dysfunction.
No takes yet. Share an insight, caveat, or question.
Does not restore basal NO release despite BP reduction; leaves open direct RAS-endothelial dysfunction link in high-renin hypertension.
Artigues‐Varin et al. (2002) studied High-renin hypertension. Irbesartan vs. Untreated / Sham surgery was evaluated on Nitric oxide (NO) release and endothelial dysfunction. In a rat model of high-renin hypertension, chronic treatment with irbesartan decreased blood pressure and moderately improved acetylcholine response but did not affect basal NO release.
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