Hdac1 regulates the expression of two pluripotency-associated genes and regeneration marker genes. Quantitative real-time-PCR analyses of sdha, myca, klf4, cebpb, junba, ctsd, and ctsba mRNA in MGCD0103-treated fin regenerates relative to DMSO-treated fin regenerates at 4 dpa. The relative expression of the housekeeping gene sdha was not changed in MGCD0103-treated fin regenerates, indicating that Hdac1 inhibition does not cause a general increase in gene expression. Error bars represent the SEM. *P < 0.005.