Preparation, isolation, analysis, and characterization of 3-benzo[a]pyrenyl-beta-D-glucopyranosiduronic acid: a metabolite of 3-hydroxybenzo[a]pyrene with potentially high carcinogenic activity.

Autor: Johnson DB; Midwest Research Institute, Kansas City, Missouri 64110, USA., Engel JF, Murrill EE, Guire PE, Barker CW, Bardwell CM, Shan AY, Swanson MJ, Stone-Heurner JG
Jazyk: angličtina
Zdroj: Analytical biochemistry [Anal Biochem] 1978 Nov; Vol. 91 (1), pp. 138-45.
DOI: 10.1016/0003-2697(78)90824-2
Abstrakt: The aglycone, 3-hydroxybenzo[a]pyrene, was metabolized to 3-benzo[a]pyrenyl-beta-D-glucopyranosiduronic acid in the presence of uridine 5'-diphosphoglucuronic acid and rabbit liver microsomes. The course of the biosynthetic reaction was followed by fluorimetry and reverse-phase, paired-ion high pressure liquid chromatography (HPLC). Also, the HPLC system was used to analyze for glucuronide and 3-hydroxybenzo[a]pyrene during the isolation procedure. The existence of a glucuronide of 3-hydroxybenzo[a]pyrene was determined by radiotracer and enzymic techniques, utilizing the HPLC system. Field desorption and direct inlet mass spectral techniques were used to characterize the 3-hydroxybenzo[a]pyrene glucuronide.
Databáze: MEDLINE