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. 2019 Dec 17;7:430. doi: 10.3389/fbioe.2019.00430

Figure 3.

Figure 3

Dickkopf-1 (DKK-1) mRNA levels in human dental pulp cells (DPC), normalized to the reference gene glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and relative to the normoxic control (white bar). DPC were treated with different inflammatory markers [(A) interleukin-1beta (IL-1β), (B) tumor necrosis factor alpha (TNFα), (C) transforming growth factor beta (TGFβ)], a hypoxia mimetic agent [L-mimosine (L-MIM)], hypoxia or their combinations (black bars). Bars represent mean + standard deviation. N = 6. *p < 0.05 relative to control.