Abstract
Uvod/Cilj: Rumex crispus (štavelj) je višegodišnja zeljasta biljka, koja se smatra bogatim izvorom biološki aktivnih molekula sa antioksidantnom i citotoksičnom aktivnošću. Cilj rada bio je procena antioksidantnog kapaciteta i ispitivanje antitumorske aktivnosti vodenog ekstrakta ploda štavelja. Metode. Antioksidantna aktivnost vodenog ekstrakta ploda štavelja procenjena je na osnovu in vitro testova: ferric-reducing antioxidant power (FRAP), sposobnosti ekstrakta da neutrališe slobodne radikale NO•, OH• i 2,2-difentil-1-pikril hidrazil (DPPH) i utiče na lipidnu peroksidaciju u lipozomima. Citotoksičnost ispitivanog ekstrakta je određena in vitro na tumorskim ćelijskim linijama: humani karcinom cerviksa (HeLa), adenokarcinom (HT-29) i adenokarcinom dojke (MCF7). Rezultati. Testirani ekstrakt pokazao je potencijalnu antioksidantnu aktivnost manifestovanu velikom moći u neutralizaciji slobodnih radikala, kao i sposobnost da smanji lipidnu peroksidaciju u lipozomima. Ustanovljena je tkivno-selektivnu citotoksičnost ekstrakta ploda štavelja in vitro. Najizraženija antitumorska aktivnost primećena je prema HeLa i MCF7 ćelijskim linijama. Zaključak. Vodeni ekstrakt ploda štavelja ima potencijalnu antioksidantnu i citotoksičnu aktivnost, sa nekrozom kao glavnim mehanizmom indukovane ćelijske smrti. Za dalja istraživanja, preporučuju se i druge metode ekstrakcije ploda štavelja.
Keywords
lipidi, peroksidacija
fitoterapija
biljke, lekovite
polygonaceae
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