Table 2. The effect of combination of three treatments (operation, diet and exercise) on some enzymes in the rat heart (according to two-way ANOVA).

Variables	Groups	p<
HO-1 expression	operation and diet	0.0040
	diet and exercise	0.5589
	operation and exercise	0.5046
HO activity	operation and diet	0.0002
	diet and exercise	0.0604
	operation and exercise	0.1918
MPO activity	operation and diet	0.5206
	diet and exercise	0.0122
	operation and exercise	0.0001