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Figure 1 (A) Representative Western blot showing vascular endothelial growth factor (VEGF) and VEGF receptors fms-like tyrosine kinase 1 (flt-1) and fetal liver kinase 1 (flk-1) protein expression in the myocardial samples from control human hearts, non-diabetic and diabetic patients with coronary heart disease (CHD). 1 to 3 = control specimens; 4 to 6 = non-diabetic patients with chronic CHD; 7 to 9 = diabetic patients with chronic CHD. (B) Optical density (O.D.) of VEGF, flt-1, and flk-1. *Statistical difference from control specimens; **statistical difference from non-diabetic patients.
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