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Table 3 Results of MTT-assay at day 7 to determine the critical MTX-concentration

From: Short time administration of antirheumatic drugs - Methotrexate as a strong inhibitor of osteoblast's proliferation in vitro

MTX concentration [nM] MTT extinction
  mean SD 95% Confidence interval
0 (Control) 0.687 0.033 0.673 – 0.701
0,0001 0.684 0.046 0.655 – 0.713
0,001 0.690 0.028 0.673 – 0.708
0,01 0.689 0.029 0.671 – 0.707
0,1 0.424 0.044 0.396 – 0.453
1 0.213 0.031 0.193 – 0.233