The study was a double-blinded, randomized, placebo-controlled cross-over study. 27 healthy subjects received a four days standardized, sodium reduced diet (100 mmol sodium) and treatment with sodium chloride (200 mmol sodium) or placebo in a randomized order. After the treatment the subjects went to an examination day. With 1 L isotonic sodium chlorid intravenous in 25 minutes, the subjects were further sodium and volume loaded. Change in salt blood test (SaBT), syndecan-1(syn-1) and heparan sulfate (HS), brachial and central blood pressure (BP), pulse wave velocity (PWV) and augmentation index (AIx) were measured. Baseline blood samples were taken before the treatment periods
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erythrocyte salt sensitivity (ESS)
Timeframe: From enrollment and at the end of the second examination day, aprox. 3-4 months