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Serum reactive oxygen species (ROS) levels and total antioxidant capacity (TAC) measured in subjects unaffected (control) or patients affected by neurodegenerative diseases (ND). All subjects' concentrations were determined before the beginning (basal values) and after three months of treatment with Cellfood or other antioxidants (see text). *P < 0.05 versus all basal values; # P < 0.05 C versus ND (basal values).
