Table 7.
Plasma, muscle and hepatic concentrations of glutathione peroxidase (GPx), catalase (CAT) and superoxide dismutase (SOD)
| HCGa | HFGb | p‐value | ||||||
|---|---|---|---|---|---|---|---|---|
| Female | Male | Female | Male | Diet | Sex | Diet*Sex | ||
| GPxc | Plasma (µmol/mg) Median (25th−75th) | 0.07 (0.07–0.07) | 0.09 (0.05–0.16) | 0.08 (0.05–0.14) | 0.12 (0.07–0.14) | 0.40 | 0.36 | 0.98 |
| Muscle (U/mg) Median (25th−75th) | 0.14 (0.12–0.23) | 0.25 (0.15–0.26) | 0.12 (0.11–0.14) | 0.13 (0.11–0.14) | 0.01* | 0.38 | 0.47 | |
| Liver (µmol/mg) Mean (SEM) | 0.26 (0.01) | 0.22 (0.02) | 0.22 (0.02) | 0.24 (0.02) | 0.70 | 0.77 | 0.11 | |
| CAT | Plasma (µmol/mg) Median (25th−75th) | 0.84 (0.63–0.88) | 1.04 (0.69–1.31) | 1.41 (0.83–1.47) | 1.20 (1.01–7.15) | 0.05* | 0.25 | 0.99 |
| Muscle (U/mg) Median (25th−75th) | 5.03 (3.13–7.04) | 3.34 (2.67–4.57) | 2.96 (2.78–3.46) | 4.03 (2.47–5.52) | 0.50 | 0.60 | 0.23 | |
| Liver (µmol/mg) Median (25th−75th) | 536.89 (517.84–539.79) | 519.7 (513.51–537.14) | 522.06 (517.88–523.21) | 534.79 (516.15–538.61) | 0.84 | 0.92 | 0.16 | |
| SOD | Plasma (µmol/mg) Median (25th−75th) | 15.38 (7.88–19.07) | 7.80 (4.97–14.73) | 6.55 (6.29–17.93) | 7.49 (7.02–14.03) | 0.71 | 0.389 | 0.44 |
| Muscle (U/mg) Median (25th−75th) | 17.60 (14.68–18.26) | 16.69 (15.59–18.33) | 16.47 (5.48–17.53) | 6.56 (5.91–17.54) | 0.03* | 0.66 | 0.61 | |
| Liver (µmol/mg) Mean (SEM) | 115.86 (1.98) | 112.69 (3.90) | 111.36 (2.33) | 114.82 (1.80) | 0.68 | 0.96 | 0.26 | |
aHigh cereal grains group (n = 9).
bHigh fibre group (n = 10).
cExpressed as oxidised NADPH content.
*Statistical significance p < 0.05.