In vivo anti-inflammatory and antioxidant properties of ellagitannin metabolite urolithin A

Hidekazu Ishimoto, Mari Shibata, Yuki Myojin, Hideyuki Ito, Yukio Sugimoto, Akihiro Tai, Tsutomu Hatano

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51 Citations (Scopus)


Urolithin A is a major metabolite produced by rats and humans after consumption of pomegranate juice or pure ellagitannin geraniin. In this study, we investigated the anti-inflammatory effect of urolithin A on carrageenan-induced paw edema in mice. The volume of paw edema was reduced at 1 h after oral administration of urolithin A. In addition, plasma in treated mice exhibited significant oxygen radical antioxidant capacity (ORAC) scores with high plasma levels of the unconjugated form at 1 h after oral administration of urolithin A. These results indicate strong associations among plasma urolithin A levels, the plasma ORAC scores, and anti-inflammatory effects and may help explain a mechanism by which ellagitannins confer protection against inflammatory diseases.

Original languageEnglish
Pages (from-to)5901-5904
Number of pages4
JournalBioorganic and Medicinal Chemistry Letters
Issue number19
Publication statusPublished - Oct 1 2011



  • Anti-inflammatory activity
  • Antioxidant activity
  • Ellagitannin
  • Urolithin A

ASJC Scopus subject areas

  • Pharmaceutical Science
  • Drug Discovery
  • Organic Chemistry
  • Molecular Medicine
  • Molecular Biology
  • Clinical Biochemistry
  • Biochemistry

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