Figure 1From: Differential expression of transforming growth factor-beta in benign vs. papillary thyroid cancer nodules; a potential diagnostic tool?Mann–Whitney U-test analysis of 2-Δ C T values. A) Significantly increased expression of TGFβ-1 mRNA in the PTC (cancer) group is observed (p < 0.0001). B) No significant difference in TGFβ-2 expression is observed (p = 0.4735).Back to article page