Antinociceptive and anti-inflammatory effects of saponin and iridoid glycosides from Verbascum pterocalycinum var. mutense Hub.-Mor

Z Naturforsch C J Biosci. 2007 Nov-Dec;62(11-12):813-20. doi: 10.1515/znc-2007-11-1207.

Abstract

The anti-inflammatory and antinociceptive properties of four major compounds from the flowers of Verbascum pterocalycinum var. mutense were investigated. Saponin glycosides called ilwensisaponin A and C and iridoid glycosides known as ajugol and picroside IV were isolated from the methanolic extract. A dose-related anti-inflammatory and antinociceptive response were obtained in this study at doses of 100 and 200 mg/kg. The results of the evaluation of the anti-inflammatory activity induced by carrageenan and PGE1 showed that this species possesses active constituents that could diminish the cyclooxygenase activitiy. No effects were observed in the 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced ear edema model. Our results support the anti-inflammatory and analgesic effects of Verbascum pterocalycinum var. mutense. Ilwensisaponins A and C could explain in part the anti-inflammatory and analgesic activities of this species. Although antinociceptive and anti-inflammatory activities of ajugol and picroside IV were found insignificant in the statistical analysis, ilwensisaponin A and C showed notable activity without inducing any apparent acute toxicity as well as gastric damage.

MeSH terms

  • Analgesics / chemistry*
  • Analgesics / isolation & purification
  • Analgesics / pharmacology
  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal / chemistry*
  • Anti-Inflammatory Agents, Non-Steroidal / isolation & purification
  • Anti-Inflammatory Agents, Non-Steroidal / pharmacology
  • Aspirin / chemistry
  • Aspirin / isolation & purification
  • Aspirin / pharmacology
  • Glycosides / chemistry*
  • Glycosides / isolation & purification
  • Glycosides / pharmacology
  • Iridoid Glycosides
  • Male
  • Methanol
  • Mice
  • Models, Molecular
  • Motor Activity / drug effects
  • Plant Extracts / chemistry
  • Plant Extracts / isolation & purification
  • Plant Extracts / pharmacology
  • Plant Preparations / chemistry
  • Plant Preparations / isolation & purification
  • Plant Preparations / pharmacology
  • Pyrans / chemistry
  • Pyrans / isolation & purification
  • Pyrans / pharmacology
  • Saponins / chemistry*
  • Saponins / isolation & purification
  • Saponins / pharmacology
  • Verbascum / chemistry*

Substances

  • Analgesics
  • Anti-Inflammatory Agents, Non-Steroidal
  • Glycosides
  • Iridoid Glycosides
  • Plant Extracts
  • Plant Preparations
  • Pyrans
  • Saponins
  • harpagide
  • Aspirin
  • Methanol