In order to evaluate the maturity of tumor angiogenesis, we immunostained the normal and cancerous ovaries with NG-2, a specific pericyte marker [35] Quantification of total number of CD31 and NG-2 positive cells per field of view indicated a decrease in pericyte to endothelial cell ratio in tumors in the control diet. This evidence concerns the gene PECAM1 and neoplasm.