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DNA fragmentation of MCF-7 cell lines treated with CFS of S. salivarius strains for 24 and 48 h. MRS medium used as control (lane M: DNA ladder, lane 1: control 24 h, lane 2: control 48 h, lane 3: BP8 24 h, lane 4: BP8 48 h, lane 5: BP156 24 h, lane 6: BP156 48 h, lane 7: BP160 24 h, and lane 8: BP160 48 h).
