Fig. 1

miR-31-5p is down-regulated and PARP1 is overexpressed in HCC tissues and is correlated with overall survival. a miR-31-5p expression in 72 paired HCC and the matched adjacent normal tissues was measured by qRT-PCR. U6 was used as a loading control. b The correlation between miR-766-3p expression and overall survival was analysed with the Kaplan–Meier method. The P value was obtained using the log-rank test. **, P < 0.001. c-e PARP1 expression in human HCC tissues was overexpressed compared with that in matched adjacent normal tissues