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Table 4 Hepatic antioxidants enzymes in oxidative stressed rats

From: Nigella sativa fixed and essential oil modulates glutathione redox enzymes in potassium bromate induced oxidative stress

Parameters Diets Study intervals (days)
0 28 56
SOD (IU/mg protein) D1 17.66 ± 1.13c 24.94 ± 0.61b 28.55 ± 1.78a
D2 18.39 ± 1.18c 18.09 ± 0.84c 17.32 ± 1.02cd
D3 18.21 ± 0.72c 16.42 ± 0.79de 16.12 ± 0.69e
Catalase (IU/mg protein) D1 6.04 ± 0.376e 6.40 ± 0.462e 7.19 ± 0.461de
D2 8.10 ± 0.476bc 7.85 ± 0.367cd 6.96 ± 0.448de
D3 10.83 ± 0.419a 8.83 ± 0.423b 6.39 ± 0.252e
Glutathione peroxidase (IU/mg protein) D1 65.60 ± 4.206cd 60.72 ± 4.379d 58.92 ± 3.665d
D2 58.01 ± 3.737d 67.73 ± 3.162c 72.68 ± 4.269bc
D3 56.80 ± 2.243d 76.54 ± 3.619ab 80.79 ± 3.456a
Glutathione reductase (IU/mg protein) D1 16.35 ± 1.048c 15.11 ± 1.089cd 14.70 ± 0.914d
D2 14.48 ± 0.932d 24.38 ± 1.138b 25.35 ± 1.489b
D3 14.62 ± 0.560d 26.55 ± 1.271a 27.60 ± 1.621a
Glutathione transferase (IU/mg protein) D1 0.53 ± 0.034de 0.48 ± 0.035ef 0.40 ± 0.025f
D2 0.43 ± 0.028f 0.56 ± 0.026d 0.61 ± 0.036c
D3 0.42 ± 0.017f 0.67 ± 0.032b 0.73 ± 0.031a
  1. D1 = Control diet; D2 = N. sativa seed fixed oil; D3 = N. sativa seed essential oil
  2. Means sharing same letters in a column/row do not differ significantly at P < 0.05