Why the study?
Do hemodynamics and salt-and-water balance differ between salt-sensitive and salt-resistant subjects during salt loading and depletion?
Population
21 normotensive volunteers (8 salt-sensitive and 13 salt-resistant) and 32 hypertensive patients
Comparison
Salt loading and salt depletion protocol vs Salt-resistant subjects compared to…
Design
Cohort
Follow-up
24 hours per phase
Authors
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May implicate vascular resistance in salt sensitivity; hypothesis-generating for hypertension mechanisms, needs prospective validation.
Do hemodynamics and salt-and-water balance differ between salt-sensitive and salt-resistant subjects during salt loading and depletion?
Salt-sensitive individuals exhibit an inability to appropriately modulate total peripheral resistance and experience abnormal interstitial fluid storage during changes in salt intake, which may drive their vascular dysfunction and blood pressure changes.
Laffer et al. (2016) studied this question.
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