Table.

Measurement of the Optical Thickness of Explants (from β-catenin detection) Following Application of Wnt-Fz Signaling Inhibitors

Experimental Condition	Optical Thickness of Explant, μm
Control	14.88 ± 0.29
FGF (200 ng/mL)	26.16 ± 0.66
Sfrp1 (4 μg/mL)	16.46 ± 1.01
Sfrp1 + FGF*	18.94 ± 1.11
IWP-2 (20 μM)	13.07 ± 0.36
IWP-2 + FGF*	16.25 ± 1.01

Values in this table are derived from mean ± SEM (n = 4).

^*Significant difference between Sfrp/IWP-2 plus FGF compared with FGF alone group (P ≤ 0.05, ANOVA with Tukey's test).