The median hBD2 expression increased 4.14-fold (p = 0.0005) in BC AB0 group, 3.98-fold (p = 0.004) in BC AB6, 1.85-fold (p = 0.02) in FQ group, 3.35-fold (p = 0.0004) in FOS, and 7.58-fold (p = 0.0006) in BL group. This evidence concerns the gene FOS and breast cancer.