Antioxidant capacity of "Mexican arnica" Heterotheca inuloides Cass natural products and some derivatives: their anti-inflammatory evaluation and effect on C. elegans life span

Oxid Med Cell Longev. 2015:2015:843237. doi: 10.1155/2015/843237. Epub 2015 Mar 2.

Abstract

It has been suggested that the accumulation of biomolecular damage caused by reactive oxygen species (ROS) contributes to aging. The antioxidant activity is related to the ability of certain compounds to protect against the potentially harmful effect of processes or reactions involving ROS. This ability is associated with the termination of free radical propagation in biological systems. From Heterotheca inuloides various compounds which have shown to possess antioxidant capacity and scavenging ROS. The aim of this study was to determine the antioxidant capacity of additional natural components isolated from H. inuloides and some semisynthetic derivatives, their anti-inflammatory activity and the effect on Caenorhabditis elegans nematode life span. Compounds showed ability to inhibit various biological processes such as lipid peroxidation, scavenge nonbiological important oxidants such as (1)O2, OH(∙), H2O2, and HOCl and scavenge non biological stable free radicals (DPPH). Some cadinane type compounds showed possess antioxidant, ROS scavenging capacity, anti-inflammatory activity, and effect on the C. elegans life span. Flavonoid type compounds increased the life of the nematode and quercetin was identified as the compound with the greatest activity. The modification of chemical structure led to a change in the antioxidant capacity, the anti-inflammatory activity, and the survival of the worm.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / chemistry
  • Anti-Inflammatory Agents / isolation & purification
  • Anti-Inflammatory Agents / pharmacology*
  • Antioxidants / chemistry*
  • Antioxidants / metabolism
  • Asteraceae / chemistry*
  • Asteraceae / metabolism
  • Biological Products / chemistry
  • Biological Products / isolation & purification
  • Biological Products / pharmacology*
  • Caenorhabditis elegans / physiology
  • Free Radical Scavengers / chemistry
  • Lipid Peroxidation / drug effects
  • Longevity / drug effects*
  • Plant Extracts / chemistry*
  • Reactive Oxygen Species / chemistry
  • Reactive Oxygen Species / metabolism
  • Superoxides / chemistry

Substances

  • Anti-Inflammatory Agents
  • Antioxidants
  • Biological Products
  • Free Radical Scavengers
  • Plant Extracts
  • Reactive Oxygen Species
  • Superoxides