title: Antioxidant and antiinflammatory effect of Epilobium parviflorum Schreb.
abstract: Epilobium parviflorum Schreb. (Onagraceae) is used for the treatment of benign prostatic hyperplasia (BPH), but its biological action is not entirely identified. This paper aims to report data on E. parviflorum with respect to its antioxidant and antiinflammatory effects. The aqueous acetone extract of E. parviflorum showed higher antioxidant effect in the DPPH assay than well known antioxidants and inhibited the lipid peroxidation determined by the TBA assay (IC(50) = 2.37 +/- 0.12 mg/mL). In concentrations of 0.2-15.0 microg/mL the extract possessed a protective effect, comparable to catalase (250 IU/mL), against oxidative damage, generated in fibroblast cells. In the COX inhibition assay E. parviflorum decreased the PGE(2) release, so showing inhibition of the COX-enzyme (IC(50) = 1.4 +/- 0.1 microg/mL).
authors.affiliation: Department of Pharmacognosy, Semmelweis University, Budapest, Hungary. hevesi.t.barbara@gmail.com
authors.forename: B T
authors.initials: BT
authors.lastname: Hevesi
authors.forename: P J
authors.initials: PJ
authors.lastname: Houghton
authors.forename: S
authors.initials: S
authors.lastname: Habtemariam
authors.forename: A
authors.initials: A
authors.lastname: Kéry
mesh_terms: D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D002478:Cells, Cultured; D051545:Cyclooxygenase 1 / Q000378:metabolism; D051546:Cyclooxygenase 2 / Q000378:metabolism; D015232:Dinoprostone / Q000378:metabolism; D031666:Epilobium / Q000737:chemistry*; D006801:Humans; D006861:Hydrogen Peroxide / Q000378:metabolism; D020128:Inhibitory Concentration 50; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D011470:Prostatic Hyperplasia / Q000188:drug therapy*
chemical_list: D000893:Anti-Inflammatory Agents; D000975:Antioxidants; D010936:Plant Extracts; D006861:Hydrogen Peroxide; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; D015232:Dinoprostone