Fig. 4From: Hair growth-promoting effect of recombinant human sonic hedgehog proteinsAdministration of Shh protein increased Shh signaling gene expression in hDP cells. Total RNA was extracted from hDP cells after Shh (10 and 50 ng/ml, respectively) treatment. The increasing expression of Ptch1, Gli1, Gli2, Gli3, CycD, and CycE mRNA was observed in Shh-concentration dependent manner. Values were normalized to GAPDH mRNA levels and represent fold changes as compared to untreated cells. *p < 0.05 and **p < 0.005 vs. untreated. Error bars represent standard deviationsBack to article page