XGBoost classification algorithm further shows that some of the classified miRNA (mir. 139 [30], mir. 21 [31], mir. 96 [32], mir. 183 [33]), and protein (Bax [34], GSK3 [35] and mTOR [35], E-cadherin [36], Rab11 [37], caveolin. 1 [38]) functions are related to breast cancer. The gene discussed is BAX; the disease is breast cancer.