Figure 4. Retinoic acid treatment promotes calcific nodule formation in cE10 mitral valve explants.
Compared to vehicle controls (A), von Kossa reactivity is increased following treatment with ATRA (B) and 9-cis RA (E). von Kossa reactivity is attenuated when co-treated with pharmacological antagonists (C,D,F,G,H). (I) Quantification of von Kossa reactivity normalized to area, as indicated by Alcian blue counterstain. * p<0.05 over vehicle; # p<0.05 over agonist.
