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Objective: To investigate the expressions of microRNA-155 (miR-155) and histone deacetylase 2 (HDAC2) in peripheral blood mononuclear cells (PBMC) of patients with sudden deafness (SSNHL) and their clinical significances. Methods: 112 patients with SSNHL who were treated in our hospital from February 2017 to September 2018 were selected as the study subjects, and they were referred to as sudden deafness group, and another 115 healthy examinees in the same period were compared and studied as normal group. The relative expression levels of miR-155, HDAC2, ICAM-1, TNF-α and interleukin-8 (IL-8) in PBMC of all subjects were detected by real-time fluorescence quantitative analysis (qRT-PCR). Pearson method was used to analyze the relationships between miR-155, HDAC2 and the expressions of ICAM-1, TNF-α, IL-8, and miR-155 and the expression of HDAC2 in PBMC of SSNHL patients. Logistic regression analysis was used to analyze the risk factors of SSNHL. The predictive diagnostic values of miR-155 and HDAC2 in PBMC for SSNHL were evaluated. Results: The relative expression levels of miR-155, ICAM-1, TNF-α and IL-8 in PBMC of sudden deafness group were significantly higher than those of normal group (P |
