title: Cytotoxic and antioxidant activity of Achillea alexandri-regis.
abstract: The cytotoxicity and antioxidant properties of herb extracts of Achillea alexandri-regis were studied. Combined chloroform and ethylacetate extracts exhibited a pronounced cytotoxic effect against HeLa cancer cells (IC50 = 25.92 +/- 4.96 microg/ml), and lower cytotoxicity against K562 leukemia cells (IC50 = 48.59 +/- 18.31 microg/ml). The methanol extract was found to be a moderately cytotoxic in vitro agent against HeLa and K562 cells. No suppressive activity was detected on non-malignant peripheral blood mononuclear cells (PBMC). The antioxidant activity of the methanol extract was assessed by DPPH radical scavenging. The methanol extract of A. alexandri-regis showed concentration dependent DPPH radical scavenging activity with IC50 = 36.14 +/- 0.05 microg/ml.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, University of Belgrade, Serbia and Montenegro. ktatjana@bitsyu.net
authors.forename: T
authors.initials: T
authors.lastname: Kundaković
authors.forename: T
authors.initials: T
authors.lastname: Stanojković
authors.forename: Z
authors.initials: Z
authors.lastname: Juranić
authors.forename: N
authors.initials: N
authors.lastname: Kovacević
mesh_terms: D031162:Achillea / Q000737:chemistry*; D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification / Q000494:pharmacology*; D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers / Q000494:pharmacology; D006367:HeLa Cells; D006801:Humans; D009000:Monocytes / Q000187:drug effects; D010851:Picrates / Q000494:pharmacology
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D000975:Antioxidants; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D010851:Picrates; C004931:1,1-diphenyl-2-picrylhydrazyl