Journal of Capital Medical University ›› 2022, Vol. 43 ›› Issue (2): 227-232.doi: 10.3969/j.issn.1006-7795.2022.02.011

• Research of Neurostimulation Treatment and Rehabilitation for Mental Disease • Previous Articles     Next Articles

Brain derived neurotrophic factor as the predictor of efficacy for repetitive transcranial magnetic stimulation in the treatment of refractory depression

Sun Congcong1,2, Wu Han1,2, Zhou Danna1,2, Jiang Wei1,2, Wang Wen1,2, Yang Chunlin1,2, Ma Xin1,2, Ren Yanping1,2*   

  1. 1. Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing Key Laboratory of Mental Disorders & The National Clinical Research Center for Mental Disorders, Beijing 100088, China;
    2. Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
  • Received:2021-11-10 Online:2022-04-21 Published:2022-04-14
  • Contact: *E-mail:renyanping@ccmu.edu.cn
  • Supported by:
    National Key Research & Development Program of China (2017YFC131110), Beijing Municipal Science & Technology Commission (D171100007017001).

Abstract: Objective To investigate the predictive effect of brain-derived neurotrophic factor (BDNF) on the efficacy of repetitive transcranial magnetic stimulation (rTMS) in the treatment of refractory depression. Methods Fifty-nine patients with refractory depression were randomly divided into treatment group (34 patients) and control group (25 patients). The treatment group received high frequency (10 Hz) rTMS for 2 weeks, while the control group was treated with sham rTMS stimulation. Hamilton Depression Scale-17 Item (HAMD-17) and Hamilton Anxiety Scale (HAMA) were used to evaluate clinical symptoms. Enzyme linked immunosorbent assay (ELISA) was used to examine the level of serum BDNF. The evaluation time point was baseline, 2 weeks after treatment, and 6 weeks follow-up. Results The scores of HAMD-17 and HAMA in the treatment and control groups decreased with the treatment time (Ptime<0.05). There was no significant difference between the two groups (P group>0.05). The response rate of the treatment group (70.59%) was higher than that of the control group (44%) after 2 weeks, with a statistically significant difference (P group = 0.04). After treatment, the change of BDNF level in the treatment group was significantly more than that in the control group (P group<0.05). There was a positive correlation between baseline BDNF level and efficacy (P<0.05). No serious adverse events occurred during the treatment. Conclusion rTMS was effective in the treatment of refractory depression. The treatment effect of rTMS was better in patients with high baseline level of serum BDNF than that with low baseline level. BDNF could be used as a predictor of the antidepressant effect of rTMS.

Key words: repetitive transcranial magnetic stimulation (rTMS), depression, brain-derived neurotrophic factor (BDNF)

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