Venous plasma angiotensin II exhibits a diurnal rhythm in healthy subjects, with peak levels occurring early in the morning.
May inform timing of angiotensin II sampling in research; leaves open relevance to patient outcomes or RAAS chronotherapy.
AbstractVenous plasma angiotensin II, measured at 4-hour intervals in healthy subjects, has a diurnal rhythm. The highest values are detected early in the morning and the lowest in the evening.
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Kala et al. (1973) studied this question.
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