Journal of Lipid Research, Vol 26, 950-954, Copyright © 1985 by Lipid Research, Inc.
Cholesterol metabolism: use of D2O for determination of synthesis rate in cell culture
AL Esterman, BI Cohen and NB Javitt
Cholesterol synthesis in cell culture in the presence of D2O yields a
spectrum of enriched molecules having a relative abundance that indicates
random substitution of deuterium for hydrogen. Quantitation of the absolute
rate of cholesterol synthesis is obtained by isotope ratio mass
spectrometry. Mevinolin and 26-hydroxycholesterol both decrease cholesterol
synthesis rate but have a discordant effect on HMG- CoA reductase activity.