| Literature DB >> 2756924 |
A B Barua1, R O Batres, J A Olson.
Abstract
Retinyl beta-glucuronide has been identified as a normal endogenous component of human blood, as have retinoyl beta-glucuronide and retinoic acid. The mean serum concentration of retinyl beta-glucuronide in adult volunteers (n = 6) was 6.8 +/- 4.0 nmol/L (means +/- SD) with a range from 1 to 11 nmol/L. Purified serum retinyl beta-glucuronide was characterized by the mass spectrum of its methylated trimethylsilyl derivative, by its hydrolysis by beta-glucuronidase, and by its chromatographic behavior in high-performance liquid chromatography systems. During a single day, concentrations of retinyl beta-glucuronide, retinoyl beta-glucuronide, and retinoic acid varied approximately two-fold.Entities:
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Year: 1989 PMID： 2756924 DOI： 10.1093/ajcn/50.2.370
Source DB: PubMed Journal: Am J Clin Nutr ISSN： 0002-9165 Impact factor: 7.045