PMID- 29460712 OWN - NLM STAT- MEDLINE DCOM- 20200703 LR - 20200703 IS - 1092-8529 (Print) IS - 1092-8529 (Linking) VI - 24 IP - 3 DP - 2019 Jun TI - Rhythmic low-field magnetic stimulation may improve depression by increasing brain-derived neurotrophic factor. PG - 313-321 LID - 10.1017/S1092852917000670 [doi] AB - BACKGROUND: Low-field magnetic stimulation (LFMS) has mood-elevating effect, and the increase of brain-derived neurotrophic factor (BDNF) is associated with antidepressant treatment. We evaluated the effects and association with BDNF of rhythmic LFMS in the treatment of major depressive disorder (MDD). METHODS: A total of 22 MDD patients were randomized to rhythmic alpha stimulation (RAS) or rhythmic delta stimulation (RDS), with 5 sessions per week, lasting for 6 weeks. Outcomes assessments included the 17-item Hamilton Depression Rating Scale (HAMD-17), the Hamilton Anxiety Rating Scale (HAMA), and the Clinical Global Impressions-Severity scale (CGI-S) at baseline and at weeks 1, 2, 3, 4, and 6. Serum BDNF level was measured at baseline and at weeks 2, 4, and 6. RESULTS: HAMD-17, HAMA, and CGI-S scores were significantly reduced with both RAS and RDS. RAS patients had numerically greater reductions in HAMD-17 scores than RDS patients (8.9 +/- 7.4 vs. 6.2 +/- 6.2, effect size [ES]=0.40), while RDS patients had greater improvement in HAMA scores (8.2 +/- 8.0 vs. 5.3 +/- 5.8, ES=0.42). RAS was associated with clinically relevant advantages in response (54.5% vs. 18.2%, number-needed-to-treat [NNT]=3) and remission (36.4% vs. 9.1%, NNT=4). BDNF increased significantly during the 6-week study period (p<0.05), with greater increases in RAS at weeks 4 and 6 (ES=0.66-0.76) and statistical superiority at week 2 (p=0.034, ES=1.23). Baseline BDNF in the 8 responders (24.8+/-9.0 ng/ml) was lower than in the 14 nonresponders (31.1+/-7.3 ng/ml, p=0.083, ES=-0.79), and BDNF increased more in responders (8.9+/-7.8 ng/ml) than in nonresponders (1.8+/-3.5 ng/ml, p=0.044). The change in BDNF at week 2 was the most strongly predicted response (p=0.016). CONCLUSIONS: Rhythmic LFMS was effective for MDD. BDNF may moderate/mediate the efficacy of LFMS. FAU - Xiao, Le AU - Xiao L AD - 1The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China. FAU - Correll, Christoph U AU - Correll CU AD - 2Department of Psychiatry,The Zucker Hillside Hospital,Northwell Health,Glen Oaks,New York,United States. FAU - Feng, Lei AU - Feng L AD - 1The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China. FAU - Xiang, Yu-Tao AU - Xiang YT AD - 3Unit of Psychiatry, Faculty of Health Sciences,University of Macau,Macao SAR,China. FAU - Feng, Yuan AU - Feng Y AD - 1The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China. FAU - Hu, Chang-Qing AU - Hu CQ AD - 1The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China. FAU - Li, Rena AU - Li R AD - 1The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China. FAU - Wang, Gang AU - Wang G AD - 1The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20180220 PL - United States TA - CNS Spectr JT - CNS spectrums JID - 9702877 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Adult MH - Alpha Rhythm MH - Brain/metabolism/physiopathology MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - Delta Rhythm MH - Depression/*therapy MH - Female MH - Humans MH - Male MH - Middle Aged MH - Transcranial Magnetic Stimulation/*methods OTO - NOTNLM OT - Major depressive disorder OT - brain-derived neurotrophic factor OT - mediator OT - moderator OT - rhythmic magnetic stimulation EDAT- 2018/02/21 06:00 MHDA- 2020/07/04 06:00 CRDT- 2018/02/21 06:00 PHST- 2018/02/21 06:00 [pubmed] PHST- 2020/07/04 06:00 [medline] PHST- 2018/02/21 06:00 [entrez] AID - S1092852917000670 [pii] AID - 10.1017/S1092852917000670 [doi] PST - ppublish SO - CNS Spectr. 2019 Jun;24(3):313-321. doi: 10.1017/S1092852917000670. Epub 2018 Feb 20.