The circadian rhythm of copeptin will be examined in healthy subjects.
In 18 healthy volunteers the circadian rhythm of copeptin will be examined by withdrawing blood samples for copeptin levels every 30 minutes for 24 hours.
Study Type
OBSERVATIONAL
Enrollment
18
blood sampling during 24 hours
University Hospital Basel
Basel, Canton of Basel-City, Switzerland
measurement of copeptin values in mmol/l within 24 hours to assess the amount of release in a day curve.
The primary outcome measure is to compare the copeptin concentration in the early afternoon and the early morning by blood sampling at different time points. Evaluation of the question if there is a circadian rhythm in the copeptin release.
Time frame: 24 hours
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