Effects of bile acid administration on bile acid synthesis and its circadian rhythm in man
Pete A. Poole, William C. Duane – 1 September 1988 – In man bile acid synthesis has a distinct circadian rhythm but the relationship of this rhythm to feedback inhibition by bile acid is unknown. We measured bile acid synthesis as release of 14CO2 from [26‐14C]Cholesterol every 2 hr in three normal volunteers during five separate 24‐hr periods. Data were fitted by computer to a cosine curve to estimate amplitude and acrophase of the circadian rhythm. In an additional six volunteers, we measured synthesis every 2 hr from 8:00 a.m. to 4:00 p.m. only.