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Vitamin D metabolism and profiling in veterinary species

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Original languageEnglish
JournalMetabolites
Volume10
Issue number9
Early online date15 Sep 2020
DOIs
Publication statusE-pub ahead of print - 15 Sep 2020

Abstract

Abstract: The demand for vitamin D analysis in veterinary species is increasing with the growing knowledge of the extra-skeletal role vitamin D plays in health and disease. The circulating 25-hydroxyvitamin-D (25(OH)D) metabolite is used to assess vitamin D status, and the benefits of analysing other metabolites in the complex vitamin D pathway are being discovered in humans. Profiling of the vitamin D pathway by liquid chromatography tandem mass spectrometry (LC-MS/MS) facilitates simultaneous analysis of multiple metabolites in a single sample and over wide dynamic ranges, and this method is now considered the gold-standard for quantifying vitamin D metabolites. However, very few studies report using LC-MS/MS for the analysis of vitamin D metabolites in veterinary species. Given the complexity of the vitamin D pathway and the similarities in the roles of vitamin D in health and disease between humans and companion animals, there is a clear need to establish a comprehensive, reliable method that is comparable to that used in human clinical practice. In this review, we highlight the differences in vitamin D metabolism between veterinary species and the benefits of measuring vitamin D metabolites beyond 25(OH)D. Finally, we discuss the analytical challenges in profiling vitamin D in veterinary species with a focus on LC-MS/MS methods.

    Research areas

  • vitamin D, 25-hydroxyvitamin-D, 1,25-dihydroxyvitamin-D, 24,25-dihydroxyvitamin-D, C3-epimers, free vitamin D, veterinary, profiling, comparative

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