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Table 6 Erythrocyte antioxidant enzymes activity according to age group

From: Tocotrienol rich fraction supplementation improved lipid profile and oxidative status in healthy older adults: A randomized controlled study

  Age group
Antioxidant enzymes 35-49 years > 50 years
  Placebo TRF Placebo TRF
Superoxide dismutase (U/mg Hb)     
   Baseline (0 month) 1.85 ± 0.14 2.23 ± 0.22 1.89 ± 0.12 2.35 ± 0.20
   3 months 1.95 ± 0.16 1.81 ± 0.15 1.85 ± 0.28 1.85 ± 0.12*
   6 months 1.98 ± 0.24 1.74 ± 0.14 1.85 ± 0.10 1.79 ± 0.12*
Catalase (U/mg Hb)     
   Baseline (0 month) 0.29 ± 0.02 0.28 ± 0.02 0.32 ± 0.02 0.28 ± 0.01
   3 months 0.25 ± 0.01 0.25 ± 0.02 0.23 ± 0.01** 0.29 ± 0.02
   6 months 0.29 ± 0.02 0.23 ± 0.02 0.24 ± 0.02* 0.30 ± 0.02
Glutathione peroxidase (U/mg Hb)     
   Baseline (0 month) 0.74 ± 0.07 0.89 ± 0.06 0.90 ± 0.06 0.86 ± 0.06
   3 months 0.87 ± 0.10 1.02 ± 0.15 0.88 ± 0.06 1.07 ± 0.08
   6 months 0.88 ± 0.06 1.05 ± 0.13 1.19 ± 0.06* 1.12 ± 0.06*
  1. Values are expressed as mean ± SEM.
  2. Symbols indicate significant difference from baseline (0 month).
  3. *: p < 0.05, **: p < 0.01