Expression levels of miR-146a-5p in HepG2 cells following transduction with Lv-NC, Lv-miR-146a-5p or Lv-miR-146a-5p inhibitor detected by reverse transcription-quantitative polymerase chain reaction. **P<0.01 vs. Lv-NC. miR, microRNA; Lv-NC, empty lentivirus negative control; Lv-miR-146a-5p, lentivirus expressing miR-146a-5p; Lv-miR-146a-5p inhibitor, lentivirus expressing miR-146a-5p inhibitor.