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The influence of 48 h of exposure of T. pratense extracts at IC0 dosages on VEGF secretion and VEGF mRNA level in MDA-MB-231 (A), MCF-7 (B) and HUVEC cells (C). Control cells were not exposed to any compound but the vehicle; values are means ± standard deviations, n = 3; statistical significance was calculated versus control cells (untreated) * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001.
