Isorhamnetin 3-O-robinobioside from Nitraria retusa leaves enhance antioxidant and antigenotoxic activity in human chronic myelogenous leukemia cell line K562

Table 1 Lipid peroxidation inhibitory activity, in K562 cells treated with isorhamnetin 3- o -robinobioside (I3- O -Rob) and ethyl acetate (EA) extract, against H ₂ O ₂ (50 μM) induced peroxidation

Extracts	Concentration (μg/ml)^a	Concentration of MDA (nM)
Isorhamnetin 3- O -robinobioside	250	180 ± 11 *
	500	150 ± 10 *
	1000	100 ± 9 *
Ethyl acetate extract	200	240 ± 5
	400	235 ± 10
	860	220 ± 10
H ₂ O ₂	50 μM	225 ± 5

^a results are represented by the means ± SD of three experiments.
(*) p < 0.05 means a significant difference between the treated cells with isorhamnetin 3- o-robinobioside (I3- O-Rob) and ethyl acetate (EA) extract, and cells treated with hydrogen peroxide (H₂O₂).

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