VCAM1 and diabetic cardiomyopathy: Results showed that there was no significant difference among the three groups in terms of the percentage of TUNEL staining‐positive apoptotic cells (Figure S2E,F) and intercellular adhesion molecule 1 or vascular cell adhesion molecule 1 ‐positive cells (Figure S3), further supporting the concept that no significant cardiac structural abnormalities can be found in the early stage of diabetic cardiomyopathy.