Relationship between aging and susceptibility of erythrocytes to oxidative damage: in view of nutraceutical interventions
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Updated: Aug 6, 2026

Ratiometric Biosensors that Measure Mitochondrial Redox State and ATP in Living Yeast Cells
Published on: July 22, 2013
F Marotta1, K Pavasuthipaisit, C Yoshida
1GAIA Age-Management Foundation, Pavia, Italy. fmarchimede@libero.it
Abstract:
Twelve (12) healthy elderly subjects were divided into two groups: (a) those given an antioxidant/NO-modulating fermented papaya preparation (FPP) 9 g/day for 4 weeks, and (b) a placebo group. No protein/lipid distribution in erythrocytes (RBC) membranes was noted among different ages and treatments. Higher RBC concentration of malondialdehyde and nitric oxide synthase were found in the elderly (p < 0.05 versus "young" controls), whereas superoxide dismutase was unaltered. Such abnormalities were prevented by FPP supplementation (p < 0.01). RBC and RBC ghosts showed an enhanced susceptibility to lipid peroxidation by using cumene hydroperoxide (p < 0.01 versus young) but FPP supplementation significantly protected intact RBC (p < 0.05). These preliminary data suggest that nutraceuticals with antioxidant/NO-regulating properties significantly protect from RBC oxidative damage, and are potential weapons for the aging process and chronic and degenerative diseases.
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