According to several reports MDA-MB-231 does not express the receptors for estrogen, progesterone nor human epidermal growth factor receptor 2 (ER, PR, HER2, respectively), and they were isolated from a hormone resistant tumor [23], [24] therefore, we investigated the impact of glycemic load on the expression of VEGF/VEGFR2 which is known to support the growth of this molecular subtype of breast cancer cells [14]. The gene discussed is KDR; the disease is breast cancer.