Key result
A high-salt diet in rats significantly depressed arteriolar responses to acetylcholine and increased microvascular oxidant levels, which were normalized by oxidant scavengers.
Why the study?
Does a high-salt diet reduce endothelium-dependent dilation via reactive oxygen species generation in normotensive rats?
Population
Normotensive Sprague-Dawley rats
Comparison
High-salt diet (7%) for 4-5 weeks vs Low-salt diet (0.45%) for 4-5 weeks
Design
Preclinical
Follow-up
4-5 weeks
Authors
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ROS may impair NO-dependent arteriolar dilation on high-salt diets in rats; leaves open whether antioxidants preserve microvascular function in humans.
Does a high-salt diet reduce endothelium-dependent dilation via reactive oxygen species generation in normotensive rats?
A high-salt diet impairs endothelium-dependent vasodilation in normotensive rats through increased generation of reactive oxygen species.
Lenda et al. (2000) studied Normotensive. High-salt diet vs. Low-salt diet (0.45%) was evaluated on Arteriolar responses to acetylcholine (ACh) and oxidant activity. A high-salt diet in rats significantly depressed arteriolar responses to acetylcholine and increased microvascular oxidant levels, which were normalized by oxidant scavengers.
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