Metabolic profiling of quercetin in rats using ultra‐performance liquid chromatography/quadrupole‐time‐of‐flight mass spectrometry

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EarlyView Article

  • Published: Jul 4, 2017
  • Author: Ming‐jiang Wu, Xiao‐lei Wu, De‐qin Zhang, Feng Qiu, Li‐qin Ding, Hao‐ling Ma, Xin‐ze Chen
  • Journal: Biomedical Chromatography

Abstract

Quercetin, a kind of major flavonoid found in many traditional chinese medicines, is an effective substance for treatments such as lowering blood lipids. However, the studies on quercetin have been mainly focused on its pharmacological effect; the treatment of diseases on a material basis, particularly the metabolites derived from quercetin in vivo, has not been evaluated. In this study, we determined the levels, distributions and types of quercetin's metabolites in plasma, urine, feces and bile of rats after a single oral administration of quercetin at a dose of 80 mg/kg, using ultra‐performance liquid chromatography/quadrupole‐time‐of‐flight mass spectrometry (UPLC‐Q‐TOF/MS). A total of 36 metabolites of quercetin were identified, including 11 metabolites in plasma, 34 metabolites in urine, 12 metabolites in feces and 21 metabolites in bile. The results showed that phase I metabolites were reduction metabolites and phase II metabolites mainly included glucuronidation, sulfation and methylation metabolites. These results provide important information on the metabolism of quercetin, which will be helpful for its further development and utilization.

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