The levels of neutrophils, leukocytes, cholesterol, hemoglobin, platelets, albumin, ASTa, ASTb, glucose, cholesterol, triglycerides, high-density lipoprotein cholesterol (HDL-c), and low-density lipoprotein cholesterol (LDL-c) were used to assess the association with the MTHFR C677T polymorphism in BC patients (Table 4). Here, MTHFR is linked to breast cancer.