BDNF and breast cancer: On the other hand, the levels of BDNF (31747.4 [23,068.0; 37,903.0] pg/mL) and Gal-3 (29,281.6 [21,786.4; 35,728.2] ng/mL) did not differ significantly in breast cancer survivors and healthy volunteers, constituting 29,281.6 [21,786.4; 35,728.2] and 4660.0 [3240.0; 6380.0] ng/mL, accordingly (Table 3).