Key result
In hypertensive Dahl salt-sensitive rats, concomitant ARB administration (candesartan) plus a switch to a normal-salt diet normalized systolic blood pressure (138+/-8 mm Hg) and end-organ damage.
Why the study?
Does candesartan and/or dietary salt reduction improve oxidative stress, endothelial dysfunction, and hypertension in Dahl salt-sensitive rats?
Population
Dahl salt-sensitive rats during prehypertensive and hypertensive phases of a high-salt diet, and Dahl…
Comparison
Candesartan alone or combined with a switch to a… vs Control rats on normal-salt diet, and untreated…
Design
Preclinical
Follow-up
12 weeks
Authors
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May inform preclinical SS hypertension models; leaves open human translation and therapeutic targeting.
Does candesartan and/or dietary salt reduction improve oxidative stress, endothelial dysfunction, and hypertension in Dahl salt-sensitive rats?
In a rat model of salt-sensitive hypertension, combining an angiotensin receptor blocker with salt restriction is necessary to normalize blood pressure and reverse end-organ damage, as ARB alone only corrects oxidative stress and endothelial dysfunction.
Zhou et al. (2003) studied Salt-sensitive hypertension. Candesartan and/or normal-salt diet vs. High-salt diet (4% NaCl) control was evaluated on Aortic superoxide (O2-) production, systolic blood pressure, and end-organ damage. In hypertensive Dahl salt-sensitive rats, concomitant ARB administration (candesartan) plus a switch to a normal-salt diet normalized systolic blood pressure (138+/-8 mm Hg) and end-organ damage.
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