Age, years TK nmol/mg∙h TP nmol/mg∙min Control (healthy) BC Control (healthy) BC 25 - 35 2,01 ±  0,04 - 35,58 ± 3,01 - 36 - 45 1,79 ± 0,35 3,58 ± 0,45* 44,12 ± 3,45 23,87 ± 3,76** 46 - 60 3,14 ± 0,49 4,62 ± 0,28* 48,34 ± 3,23 27,60±3,60** 61 - 70 1,55 ± 0,25 2,95 ± 0,89* 51,67 ± 3,12 16,82 ± 2,56** Note: authentic differences versus the norm:*- р < 0,05, ** - р < 0,01

Table 1: The salvage thymidilate synthesis enzymes activity in serum in control group and III stage breast cancer patients at the different age.