title: In vivo effect of pinosylvin and pterostilbene in the animal model of adjuvant arthritis.
abstract: OBJECTIVE
  The aim of this study was to evaluate the effects of pinosylvin (PIN) and pterostilbene (PTE), natural substances from the stilbenoid group, on the development of adjuvant arthritis in rats.
  
  
  METHODS
  Adjuvant arthritis (AA) was induced by a single intradermal injection of Mycobacterium butyricum in incomplete Freund's adjuvant in male Lewis rats. Our experiments included healthy intact animals as reference controls, arthritic animals without any drug administration, and arthritic animals with administration of PIN and PTE in the oral daily dose of 30 mg/kg b.w. The treatment involved administration of the substances tested from day 0, i.e. the day of immunization, to the experimental day 28. The following parameters were monitored: change of the hind paw volume (HPV) on day 14, 21 and 28, luminol-enhanced chemiluminescence (CL) of the joint and myeloperoxidase (MPO) activity in hind paw joint homogenates (day 28).
  
  
  RESULTS
  Arthritic animals treated with PIN showed a decrease in HPV, significantly on days 14 and 28. PIN decreased CL of the joint as well as MPO activity of the joint homogenate, in comparison with untreated animals. PTE had no effect on HPV and MPO activity in hind paw joint homogenates and exerted only a partial effect on luminol-enhanced CL.
  
  
  CONCLUSIONS
  On the basis of our results we conclude that the effect of PTE on CL was only partial. PIN, on the other hand, had a beneficial anti-inflammatory and antioxidant effect on oxidative stress induced biochemical changes occurring in AA, as determined by all three functional parameters.
authors.affiliation: Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovakia. tatiana.macickova@savba.sk
authors.forename: Tatiana
authors.initials: T
authors.lastname: Macickova
authors.forename: Katarina
authors.initials: K
authors.lastname: Drabikova
authors.forename: Radomir
authors.initials: R
authors.lastname: Nosal
authors.forename: Katarina
authors.initials: K
authors.lastname: Bauerova
authors.forename: Danica
authors.initials: D
authors.lastname: Mihalova
authors.forename: Juraj
authors.initials: J
authors.lastname: Harmatha
authors.forename: Jana
authors.initials: J
authors.lastname: Pecivova
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000494:pharmacology / Q000627:therapeutic use*; D000975:Antioxidants / Q000494:pharmacology / Q000627:therapeutic use*; D001169:Arthritis, Experimental / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D004195:Disease Models, Animal; D004305:Dose-Response Relationship, Drug; D004359:Drug Therapy, Combination; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects; D009195:Peroxidase / Q000378:metabolism; D051381:Rats; D011917:Rats, Inbred Lew; D017382:Reactive Oxygen Species / Q000378:metabolism; D013267:Stilbenes / Q000494:pharmacology / Q000627:therapeutic use*; D000094162:Phytoalexins
chemical_list: D000893:Anti-Inflammatory Agents; D000975:Antioxidants; D009195:Peroxidase; D017382:Reactive Oxygen Species; D013267:Stilbenes; C107773:pterostilbene; C049032:pinosylvin; D000094162:Phytoalexins