Antioxidant, antiradical, and anticholinergic properties of cynarin purified from the Illyrian thistle (Onopordum illyricum L.)


Topal M., Gocer H., Topal F., Kalin P., Kose L. P. , GÜLÇİN İ., ...More

JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY, vol.31, no.2, pp.266-275, 2016 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 2
  • Publication Date: 2016
  • Doi Number: 10.3109/14756366.2015.1018244
  • Title of Journal : JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY
  • Page Numbers: pp.266-275
  • Keywords: Antiacetylcholinesterase, anticholinergic, antioxidant activity, cynarin, Onopordum illyricum, radical scavenging, IN-VITRO ANTIOXIDANT, RADICAL SCAVENGING ACTIVITY, ERYTHROCYTE ISOZYMES I, CARBONIC-ANHYDRASE, POLYPHENOL CONTENTS, CAFFEIC ACID, ACETYLCHOLINESTERASE, DERIVATIVES, INHIBITORS, CAPACITY

Abstract

Cynarin is a derivative of hydroxycinnamic acid and it has biologically active functional groups constituent of some plants and food. We elucidated the antioxidant activity of cynarin by using different in vitro condition bioanalytical antioxidant assays like DMPD center dot+, ABTS(center dot+), O-2(center dot-), DPPH center dot and H2O2 scavenging effects, the total antioxidant influence, reducing capabilities, Fe2+ chelating and anticholinergic activities. Cynarin demonstrated 87.72% inhibition of linoleic acid lipid peroxidation at 30 mu g/mL concentration. Conversely, some standard antioxidants like trolox, -tocopherol, butylated hydroxytoluene (BHT), and butylated hydroxyanisole (BHA) exhibited inhibitions of 90.32, 75.26, 97.61, 87.30%, and opponent peroxidation of linoleic acid emulsion at the identical concentration, seriatim. Also, cynarin exhibited effective DMPD center dot+, ABTS(center dot+), O-2(center dot-), DPPH center dot, and H2O2 scavenging effects, reducing capabilities and Fe2+ chelating effects. On the contrary, IC50 and K-i parameters of cynarin for acetylcholinesterase enzyme inhibition were determined as 243.67 nM (r(2): 0.9444) and 39.34 +/- 13.88 nM, respectively. This study clearly showed that cynarin had marked antioxidant, anticholinergic, reducing ability, radical-scavenging, and metal-binding activities.