HDAC1 and non-small cell lung carcinoma: Our data showed that 76% of the patients with higher OAZ1 expression (n = 39) were in the low HDAC1 expression group (n = 51), whereas 60% of the patients with lower OAZ1 expression (n = 30) were in the high HDAC1 expression group (n = 50), suggesting that OAZ1 expression was negatively associated with HDAC1 expression in platinum-treated NSCLC cases (P < 0.05, Fig. 6b).