ellagitannin and Edema

Ellagitannins constitute the largest group of hydrolyzable tannins of plants, and, from this group, casuarictin (Casu) was identified in some plant species. However, to our knowledge, no investigation of secretory phospholipase A2 (sPLA2) inhibition by Casu has been performed yet. Casuarictin was isolated by chromatography n-butanol (n-BuOH) partition of

Topics: Animals; Anti-Infective Agents; Anti-Inflammatory Agents; Biphenyl Compounds; Combretaceae; Crotalus; Edema; Gallic Acid; Hydrolyzable Tannins; Phospholipases A2, Secretory; Plant Leaves; Snake Venoms

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 1h 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 1h 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.

Topics: Administration, Oral; Animals; Anti-Inflammatory Agents, Non-Steroidal; Antioxidants; Coumarins; Disease Models, Animal; Dose-Response Relationship, Drug; Drug Administration Schedule; Drug Discovery; Drug Evaluation, Preclinical; Edema; Free Radical Scavengers; Glucosides; Glucuronides; Humans; Hydrolyzable Tannins; Lythraceae; Mice; Mice, Inbred ICR; Rats