RESUMO
To study the changes of serum miR-128 in patients with first-visit Parkinson’s disease (PD) before and after treatment, and the correlation between serum miR-128 and unified PD rating scale (UPDRS) scores and inflammatory factors in patients with PD. It is helpful to explore the diagnostic value and pathogenesis of miR-128 in PD. Methods Serum miR-128 levels were measured in 54 patients with first-visit PD ( first-visit PD group) before and after treatment, and were compared with 50 cases of healthy controls (healthy control group). The UPDRS scale was evaluated and the serum levels of IL-1β and TNF-α were measured, and the results were analyzed. Results The level of serum miR-128 in first-visit PD group was significantly lower than that in healthy control group (t = 8. 87, P< 0.01 ). After two months of treatment, the level of serum miR-128 in first-visit PD group was significantly higher than that before treatment (t= -5.13, P<0.01), and the UPDRS score was significantly lower than that before treatment (t=9.67, P<0.01). There was a negative correlation between serum miR-128 level and UPDRS score, IL-1β and TNF-α levels in first-visit PD group, respectively ( r= -0.763, r= -0.656, r= -0.674; all P<0.01). The area under the working characteristic curve of serum miR128 was 0.882 (95% CI:0.776-0. 952, P<0.01 ). The sensitivity of diagnosis of PD was 72. 0% , and the specificity was 88. 9%. Conclusion Among the first first-visit PD patients, the level of serum miR-128 is abnormal, and it can be used as a better index of peripheral blood for evaluating the condition and auxiliary diagnosis of PD, which plays an important role in the pathogenesis of depression.