title: Determination of key intermediates in cholesterol and bile acid biosynthesis by stable isotope dilution mass spectrometry.
abstract: For more than a decade, we have developed stable isotope dilution mass spectrometry methods to quantify key intermediates in cholesterol and bile acid biosynthesis, mevalonate and oxysterols, respectively. The methods are more sensitive and reproducible than conventional radioisotope (RI), gas-chromatography (GC) or high-performance liquid chromatography (HPLC) methods, so that they are applicable not only to samples from experimental animals but also to small amounts of human specimens. In this paper, we review the development of stable isotope dilution mass spectrometry for quantifying mevalonate and oxysterols in biological materials, and demonstrate the usefulness of this technique.
authors.affiliation: Raffles Japanese Clinic, Singapore, Singapore.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Yoshida
authors.forename: Akira
authors.initials: A
authors.lastname: Honda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Miyazaki
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Matsuzaki