Journal
FOODS
Volume 10, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/foods10020382
Keywords
phytocomplex; spinach extracts; colon cancer cell line; phytochemicals; antioxidants
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The research found that spinach extracts and the components of the phytocomplex have certain regulatory effects on the proliferation, antioxidant defense, and genotoxicity of human colorectal cells, with a certain dose-dependent and extraction method-related correlation. In the presence of oxidative stress, their effects vary depending on the specific oxidizing agent involved.
The Mediterranean-style diet is rich in fruit and vegetables and has a great impact on the prevention of major chronic diseases, such as cardiovascular diseases and cancer. In this work we investigated the ability of spinach extracts obtained by different extraction methods and of the single main components of the phytocomplex, alone or mixed, to modulate proliferation, antioxidant defense, and genotoxicity of HT29 human colorectal cells. Spinach extracts show dose-dependent activity, increasing the level of intracellular endogenous reactive oxygen species (ROS) when tested at higher doses. In the presence of oxidative stress, the activity is related to the oxidizing agent involved (H2O2 or menadione) and by the extraction method. The single components of the phytocomplex, alone or mixed, do not alter the intracellular endogenous level of ROS but again, in the presence of an oxidative insult, the modulation of antioxidant defense depends on the oxidizing agent used. The application of the phytocomplex extracts seem to be more effective than the application of the single phytocomplex components.
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