o:25161 Antigenotoxic properties of anthocyanin-enriched fraction of strawberry (cv. Romina) extract on DNA damage induced by H2O2 in human peripheral blood leukocytes Antigenotoksična svojstva ekstrakta jagode obogaćenog antocijaninom (cv. Romina) na oštećenja DNK izazvana H2O2 u leukocitima periferne krvi čoveka en ABSTRACT Strawberry fruit Fragaria × ananassa Duchesne, Rosaceae (cv. Romina), rich in anthocyanin polyphenols, has been demonstrated to have favorable effects on health due to its antioxidant properties. The present study investigated the antigenotoxic potential of anthocyaninenriched fraction of Romina strawberry methanolic extract (ACY) against DNA damage on human peripheral blood leukocytes, induced by hydrogen peroxide in vitro. Five concentrations of the ACY extract were used in all experiments (2.5, 5, 10, 15, 20 µg/ml). The results of the alkaline comet assay showed no genotoxic effect of the ACY. After the pre-exposure of the leukocytes to the ACY, and subsequent incubation with H2O2, a decreased number of DNA damaged cells was recorded in all the tested concentrations, compared to controls. In the posttreatment, there was a concentration-dependent DNA damage reduction, while a statistically significant decrease was achieved with 15 and 20 µg/ml concentrations. The results indicate that ACY is efficient in oxidative DNA damage reduction, and it is more potent as a post-applicative than a protective agent. SAŽETAK Plodovi jagode Fragaria × ananassa Duchesne, Rosaceae (cv. Romina), bogati antocijaninima, pokazali su povoljne efekte na zdravlje zahvaljujući svojim antioksidativnim svojstvima. U ovoj studiji ispitivan je antigenotoksični potencijal frakcije metanolnog ekstrakta jagode Romina koji je obogaćen antocijaninom (ACY) na oštećenja DNK na leukocitima humane periferne krvi, izazvanih vodonik-peroksidom in vitro. U svim eksperimentima je korišćeno i testirano pet koncentracija ekstrakta ACY (2.5, 5, 10, 15, 20 µg /ml). Rezultati ispitivanja alkalnim komet testom nisu pokazali genotoksični efekat ACY. Nakon izloženosti leukocita ACY i potom njihovog tretmana i inkubacije sa H2O2, smanjen je broj ćelija sa oštećenom DNK, u svim ispitivanim koncentracijama u poredjenju sa kontrolama. U post-tretmanu, došlo je do smanjenja oštećenja DNK u zavisnosti od koncentracije ekstrakta, dok je statistički značajno smanjenje postignuto sa koncentracijama od 15 i 20 µg/ml. Rezultati ukazuju da je ACY efikasan u smanjenju oksidativnih oštećenja DNK i da pokazuje snažniji efekat kao postaplikativno nego kao zaštitno sredstvo. DNA damage, comet assay, strawberry (cv. Romina), anthocyanins, leukocytes oštećenje DNK, komet test, jagoda (cv. Romina), antocijanini, leukociti 1552099 10.5937/arhfarm71‐31060 2022-04-21T10:18:40.084Z 44 yes 46 Biljana Spremo Potparević University of Belgrade, Faculty of Pharmacy, Center of Biological Research, Serbia Andrea Čabarkapa Pirković University of Belgrade, Faculty of Pharmacy, Center of Biological Research, Serbia doktor bioloških nauka person 0000-0002-1182-4895 Dragana Dekanski University of Belgrade, Institute for the Application of Nuclear Energy INEP, Serbia doktor medicinskih nauka person 0000-0001-8467-4165 Dijana Topalović University of Belgrade, Faculty of Pharmacy, Center of Biological Research, Serbia person Vladan Bajić University of Belgrade, Institute of Nuclear Sciences VINČA, Laboratory for Radiobiology and Molecular Genetics, Serbia person Lada Živković University of Belgrade, Faculty of Pharmacy, Center of Biological Research, Serbia person application/pdf 462013 https://phaidrabg.bg.ac.rs/o:25161 no yes 21 70 92000001 11A13 11A29 11A2901 11A28 11A2810 Arhiv za farmaciju 71 197 206 2021