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Table 3 Antioxidant enzymes activities in brain and liver

From: Hepatoprotection and neuroprotection induced by low doses of IGF-II in aging rats

  

Young controls (yCO) (n = 8)

Untreated old rats (O) (n = 8)

Old rats treated with IGF-II (O+IGF-II) (n = 8)

In cortex

Catalase (U/mg prot)

22.8 ± 0.85

18.90 ± 1.05a

20.2 ± 1.2b

 

SOD (U/mg prot)

3.99 ± 0.09

5.32 ± 0.38a

4.8 ± 0.2

 

GPX (mU/mg prot)

89.3 ± 2.85

77.9 ± 2.85a

108 ± 5b

 

GRD (U/mg prot)

41.80 ± 0.09

42.75 ± 1.9

46 ± 2

In hippocampus

Catalase (U/mg prot)

9.40 ± 0.47

15.01 ± 2.09a

7.9 ± 1.1c

 

SOD (U/mg prot)

1.23 ± 0.09

1.99 ± 0.19d

1.3 ± 0.2c

 

GPX (mU/mg prot)

55.1 ± 2.85

83.6 ± 4.75d

66 ± 5

 

GRD (U/mg prot)

31.35 ± 0.09

42.75 ± 2.85a

35 ± 4

In liver

Catalase (KU/mg)

2.85 ± 0.28

1.90 ± 0.19b

2.70 ± 0.60

 

SOD (U/mg)

11.59 ± 1.71

12.25 ± 1.99

18.20 ± 2.00

 

GPX (U/mg)

1.04 ± 0.09

2.09 ± 0.19b

2.10 ± 0.10b

  1. Values are expressed as ± SEM. prot, Protein.
  2. a P < 0.01 vs yCO
  3. b P < 0.05 vs yCO
  4. c P < 0.05 vs O
  5. d P < 0.001 vs yCO