High salt intake increases copeptin but salt sensitivity is associated with fluid induced reduction of copeptin in women.
Författare
Summary, in English
This study investigated if copeptin is affected by high salt intake and whether any salt-induced changes in copeptin are related to the degree of salt sensitivity. The study was performed on 20 men and 19 women. In addition to meals containing 50 mmol NaCl daily, capsules containing 100 mmol NaCl and corresponding placebo capsules were administered during 4 weeks each, in random order. Measurements of 24 h blood pressure, body weight, 24 h urinary volume, and fasting plasma copeptin were performed at high and low salt consumption. Copeptin increased after a high compared to low dietary salt consumption in all subjects 3,59 ± 2,28 versus 3,12 ± 1,95 (P = 0,02). Copeptin correlated inversely with urinary volume, at both low (r = -0,42; P = 0,001) and high (r = -0,60; P < 0,001) salt consumption, as well as with the change in body weight (r = -0,53; P < 0,001). Systolic salt sensitivity was inversely correlated with salt-induced changes of copeptin, only in females (r = -0,58; P = 0,017). As suppression of copeptin on high versus low salt intake was associated with systolic salt sensitivity in women, our data suggest that high fluid intake and fluid retention may contribute to salt sensitivity.
Avdelning/ar
Publiceringsår
2014
Språk
Engelska
Publikation/Tidskrift/Serie
International Journal of Hypertension
Volym
2014
Fulltext
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
Hindawi Limited
Ämne
- Cardiac and Cardiovascular Systems
Status
Published
Forskningsgrupp
- Cardiovascular Research - Hypertension
ISBN/ISSN/Övrigt
- ISSN: 2090-0392