In particular, HDAC1 increases the expression of anti-inflammatory cytokines in inflammatory diseases of the oral cavity [12] and glioblastoma [13], HDAC1 and HDAC3 are hyperexpressed in cardiomyocytes in cardiomyopathy [14,15], and HDAC2 regulates the activation of hepatic stellate cells in biliary atresia [16]. Here, HDAC1 is linked to biliary atresia.