Increased Oxidative Stress in Gastric Cancer Patients and Their First-Degree Relatives: A Prospective Study from Northeastern Brazil

Table 3

Comparison of serum GSH concentration, CAT activity, MDA, and SOD activity between control group and gastric cancer stage I, II and III, IV.

	Control	I e II	III e IV
GSH	337.76 (112.18-561)	78.41 (24.77-233.35)	140.41 (77.47-206.88)	<0.001^a,b
CAT	0.97 (0.69-1.42)	1.11 (0.55-1.49)	0.85 (0.37-1.3)	0.381
MDA	3.85 (3.33-6.47)	5.82 (3.14-12.51)	6.58 (4.45-11.83)	0.028^b
SOD	0.64 (0.54-0.81)	0.55 (0.44–0.67)	0.49 (0.47–0.66)	0.254

^a GC stage I, II vs. control. ^b GC stage III, IV vs. control.