Labeling of Intestinal and Lymph Cholesterol After Administration of Tracer Doses of Cholesterol-4-C 14 . ∗

Summary

Small doses of fed cholesterol-4-C¹⁴ lead to labeling of cholesterol fractions of mucosa and lymph without increase in level or turnover rate of free cholesterol pool of the mucosa or in amount of cholesterol in lymph. Feeding tracer dose with sodium taurocholate and oleic acid increases the turnover rate of pool which leads to an increased amount of labeled and unlabeled cholesterol in lymph.