Figure 5. a) Comparison of genes expression between groups, the expression of VEGF-a gene in the N20+C group was higher than in the VCL group (p<0.05); the BCL2 gene expression in the N20+C group was higher than in the VCL group (p<0.05); the caspase-3 gene expression in the VCL group was higher than in the N20+C group (p<0.001) and the expression of the IL-6 gene in the VCL group was higher than in the N20+C group (p<0.001) and b). Comparing different gene expressions in each group, there was no difference in gene expression in the Control and Sham groups; in the VCL group the VEGF-a gene expression was higher than BCL-2 (p<0.05); and caspase-3 gene expression was lower than IL-6 (p<0.001); and in the N20+C group the VEGF-a gene expression was higher than BCL-2 (p<0.05).