Antioxidant and anti-inflammatory effect of Asphodelus microcarpus methanolic extracts

J Ethnopharmacol. 2019 Jul 15:239:111914. doi: 10.1016/j.jep.2019.111914. Epub 2019 Apr 26.

Abstract

Ethnopharmacological relevance: Asphodelus microcarpus is an important medicinal plant belonging to family Liliaceae. This plant is used in traditional medicine to treat abscesses by local application of the powder; the roots are used against white spots, and specifically used for ear pain.

Aim of the study: The aim of the present study was to assess the in vitro antioxidant effects and the in vivo anti-inflammatory activity of the different parts methanolic extracts of the Asphodelus microcarpus: aerial part (APME), leaf (LME), stem flowers (SFME) and root (RME).

Material and methods: The antioxidant potency of extracts was evaluated by DPPH (2, 2-diphenyl-l-picrylhydrazyl), ABTS, β-carotene bleaching assays, iron chelating, free hydroxyl radicals (HO) assays, and reducing power. The anti-inflammatory effect of the extracts was evaluated using the carrageenan induced rat paw edema and xylene-induced ear edema in mice.

Results: The estimation of polyphenols and flavonoids showed that the leave methanolic extract contains a high amount of polyphenols and flavonoids: 755.3 ± 0.036 mg Gallic acid equivalent and 42.2 ± 0.043 mg Rutin equivalent/g of dried material, respectively. Oral administration of the APME and RME extract produced significant (p < 0.05) anti-edematogenic effect with a dose of 500 mg/kg in the carrageenan induced paw edema after 6 h (58.04%, 58.75%, respectively). APME, LME; SFME and RME extracts at 100, 300 and 500 mg/kg, exhibited significant (p < 0.05) inhibition of xylene induced ear edema.

Conclusion: the present study confirms the use of A. microcarpus in traditional medicine as anti-inflammatory agent.

Keywords: Anti-inflammatory; Antioxidant; Asphodelus microcarpus; Flavonoids.

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / chemistry
  • Anti-Inflammatory Agents / therapeutic use*
  • Antioxidants / chemistry
  • Antioxidants / therapeutic use*
  • Benzothiazoles / chemistry
  • Biphenyl Compounds / chemistry
  • Carrageenan
  • Edema / chemically induced
  • Edema / drug therapy*
  • Female
  • Hydroxyl Radical / chemistry
  • Iron / chemistry
  • Liliaceae*
  • Mice
  • Phytotherapy
  • Picrates / chemistry
  • Plant Components, Aerial
  • Plant Extracts / chemistry
  • Plant Extracts / therapeutic use*
  • Rats, Wistar
  • Sulfonic Acids / chemistry
  • Xylenes
  • beta Carotene / chemistry

Substances

  • Anti-Inflammatory Agents
  • Antioxidants
  • Benzothiazoles
  • Biphenyl Compounds
  • Picrates
  • Plant Extracts
  • Sulfonic Acids
  • Xylenes
  • beta Carotene
  • 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid
  • Hydroxyl Radical
  • Carrageenan
  • 1,1-diphenyl-2-picrylhydrazyl
  • Iron