TABLE 2.

Effect of the administration of vitamin E on the activity of xanthine oxidase and malondialdehyde (MDA) levels in blood

Cases	Specific activity of xanthine oxidase	MDA levels (nmol/mL deproteinized blood)
Healthy subjects, n=45 (mean ± SD)	0.0096±0.0008	29.79x106±1.437
Group I, n=35 (mean ± SD)	0.0479±0.0024	55.87x106±1.523
Group II, n=30 (mean ± SD)	0.0332±0.0013	48.65x106±2.108
Group III, n=30 (mean ± SD)	0.0216±0.0021	39.32x106±1.475
Group comparisons	P	P
Group I versus group II	<0.005	<0.005
Group I versus group III	<0.0005	<0.0005
Group II versus group III	<0.0005	<0.0005
Healthy subjects versus group I	<0.0005	<0.0005
Healthy subjects versus group II	<0.0005	<0.0005
Healthy subjects versus group III	<0.0005	<0.0005

Group I Post reperfusion myocardial infarction patients; Group II Post reperfusion myocardial patients receiving acetylsalicylic acid along with a beta-blocker; Group III Post reperfusion myocardial patients receiving vitamin E, acetylsalicylic acid and a beta-blocker. P>0.05 not significant