The injuries of the myocardium including sarcomeres, mitochondria and microvascular endothelial cells were less in irbesartan group than that in diabetic group.

• 糖尿病组大鼠的心肌细胞超微结构明显损伤，伊贝沙坦组大鼠的心脏组织超微结构损伤较轻。