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<p>The combination and role of oxidative stress and antioxidants in vivo is still a matter of conjecture. Our objective for the present study was to expose MCF-7<a href="http://breast cancer cells"> breast cancer cells</a> in vitro (as a chronic disease example) to aqueous and alcohol extracts and in combination with H2O2 as an oxidative stressor. Measurement of cell survival under various concentrations and mixtures was conducted using standard cell culture techniques, exposure protocols in 96 well plates and Fluorospectrosphotometry. Following cellular growth to 90% confluence, exposure to water (WE) and ethanol (AE) extracts of N. sativa and H2O2 was performed. Cell survival indices were calculated from percent survival using regression analysis. Mixtures other than AE+H2O2 showed possible interactions and loss of potency. In conclusion, N. Sativa alone or in combination with oxidative stress was found to be effective (in vitro) in influencing the survival of MCF-7 breast cancer cells, unveiling promising opportunities in the field of<a href="http://cancer chemoprevention and/or treatment."> cancer chemoprevention and/or treatment.</a></p>
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