(A) Fusion index of EECD34 cells from mouse EOM and LEG treated with vehicle (control), retinoic acid (RA), the RAR inverse agonist BMS493 (RARinhib), or the RXR antagonist UVI 3003 (RXRinhib). (B) Percentage of desmin-positive myoblasts in EECD34 cell cultures from mouse EOM and LEG treated with vehicle (control), retinoic acid (RA), BMS493 (RARinhib), or UVI 3003 (RXRinhib). (C) Percentage of desmin-negative EECD34 cells from mouse EOM and LEG treated with vehicle (control), retinoic acid (RA), BMS493 (RARinhib), or UVI 3003 (RXRinhib). * indicates significant difference from vehicle (control). # indicates significant difference from retinoic acid (RA) treatment. ^^ indicates significant difference from EOM with the same treatment. Data are statistically significant at p ≤ 0.05.