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Table 5 Levels of antioxidant defense systems in earthworms collected from different stations of Ijegun (n = 5)

From: Histopathological and biochemical alterations in Eudrilus eugeniae (Kinberg 1867) as biomarkers of exposure to monocyclic aromatic hydrocarbons in oil impacted site

Stations

 

Control

S5

S6

S8

S9

S12

S13

S18

S19

GSH

28.64 ± 1.47

0.04 ± 0.01*

0.1 ± 0.02*

0.05 ± 0.02*

0.21 ± 0.1*

0.02 ± 0.01*

0.2 ± 0.2*

0.01 ± 0*

0.09 ± 0.1*

SOD

235.20 ± 30.41

0.76 ± 0.2*

1.94 ± 0.5*

0.82 ± 0.3*

2.1 ± 1.27*

0.34 ± 0.09

0.69 ± 0.2*

0.21 ± 0.1*

0.49 ± 0.2*

CAT

693.00 ± 78.85

4.61 ± 1.3*

11.51 ± 4.2*

5.09 ± 2.5*

15.91 ± 6.8*

2.48 ± 0.55*

11.73 ± 5.4*

1.5 ± 0.5*

3.84 ± 0.6*

MDA

2.46 ± 0.12

1.11 ± 0.3

1.86 ± 0.2

1.47 ± 0.4

2.68 ± 0.8

9.44 ± 5.4*

15.45 ± 0.3*

11.38 ± 5.5*

17.22 ± 1.4*

GST

395.77 ± 20.30

0.5 ± 0.1*

1.47 ± 0.3*

0.57 ± 0.3*

2.36 ± 1.1*

0.36 ± 0.1*

3.98 ± 1.9*

0.11 ± 0.1*

1.28 ± 0.7*

  1. CAT Catalase, MDA Malondialdehyde, GSH Total glutathione, GST Glutathione-S- transferase, SOD Superoxide dismutase; statistical significance, treated versus control group:*(p < 0.05)