Background: Poststroke depression (PSD) is the most frequent psychological sequela after stroke. Electroacupuncture (EA) treatment is effective for PSD. The study aimed at clarifying the mechanisms of EA’s antidepressant effects in a PSD rat model. Methods: We used middle cerebral artery occlusion to establish the rat model of PSD. Tests of sucrose preference and locomotor activity were performed to examine depressive-like behaviors. We measured malondialdehyde, GSH, SOD, IL6, IL1β, TNFα, and 5HT with ELISA. The hippocampal Shh-signaling pathway was assessed by Western blot. Results: EA significantly decreased sucrose preference and locomotor activities of PSD rats, reduced IL6, TNFα, increased GSH, and upregulated 5HT, and also slightly reduced IL1β and malondialdehyde, all of which were measured with ELISA. The Shh-signaling pathway assessed by Western blotting was activated by EA. Those changes were inhibited by the Shh-pathway inhibitor cyclopamine. Conclusion: EA effectively alleviated depressive-like behaviors in PSD by suppressing inflammation and oxidative stress through activation of the Shh-signaling pathway.

BackgroundPoststroke depression is closely related to increased mortality in stroke patients. Compared with antidepressants, electroacupuncture (EA) treatment for poststroke depression (PSD) has relatively more stable effectiveness and can reduce side effects. This trial is designed to provide solid evidence for the efficacy and safety of EA treatment for patients with PSD.Methods/designThis ongoing study is a single-blind, single-center, parallel group, randomized controlled trial. Sixty-two participants will be recruited from Shanghai Shuguang Hospital and randomized into either the EA group or the sham EA group. Baihui, Sishencong, Ganshu, Sanyinjiao, and Taichong are selected as the treatment acupoints in both groups. The EA group will receive the traditional EA treatment with de-qi sensation, and the sham EA group will receive sham EA treatment without needle penetration and electrostimulation. Participants will receive treatment 3 times per week for a total of 12 sessions over 4 weeks. The primary outcome is Hamilton Rating Scale for Depression score, and the secondary outcomes are scores on the Zung Self-Rating Depression Scale, National Institutes of Health Stroke Scale, Barthel Index of Activities of Daily Living, and Depression Scale of traditional Chinese medicine. All of the outcome measures will be assessed at baseline, 2 weeks after EA treatment onset, 4 weeks after treatment onset, and at 8-week follow-up. Safety assessments will be done at each visit.DiscussionThe results of this trial will demonstrate the efficacy and safety of EA treatment for PSD with credible and important clinical evidence, thus supporting EA treatment as an ideal choice for PSD treatment.Trial registrationChinese Clinical Trial Registry, ChiCTR-IOR-17012610. Registered on 7 September 2017. http://www.chictr.org.cn/edit.aspx?pid=21494&htm=4Electronic supplementary materialThe online version of this article (10.1186/s13063-018-2548-0) contains supplementary material, which is available to authorized users.

Objective: The objective of this study is to evaluate the efficacy and safety of electroacupuncture (EA) treatment for post-stroke depression (PSD). Methods: This study was a single-center, single-blinded, parallel-arm randomized controlled trial. In total, 65 patients with PSD were randomly allocated into EA and sham EA groups. Treatment was administered at GV20, Sishencong, SP6, LR3 and BL18 in both groups. The EA group received EA treatment, while the sham EA group received sham EA treatment using the Park device. Treatment was given three times a week for 4 weeks. The primary outcome was the Hamilton Rating Scale for Depression (HRSD). Secondary outcomes included the Zung Self-Rating Depression Scale (SDS), National Institutes of Health Stroke Scale (NIHSS), Barthel Daily Living Index (BI) and depression scale of traditional Chinese medicine (TCM). Primary and secondary outcomes were assessed at baseline, week 2 after treatment, week 4 after treatment and week 8 of follow-up. Safety assessment was conducted at each visit for 4 weeks of treatment. Results: Significant differences in HRSD, SDS, NIHSS, BI and TCM scale scores were found in the EA group before and after acupuncture treatment (all p < 0.001). Compared with the sham EA group, HRSD scores improved significantly in the EA group at the end of week 2 (F = 31.33, p < 0.001), week 4 (F = 35.58, p < 0.001) and week 8 after treatment onset (F = 25.03, p < 0.001). Similarly, significant improvements were observed in SDS, NIHSS and BI scores. Two participants in the EA group suffered a local hematoma, while no adverse events were reported in the sham EA group. Conclusion: EA appears to be an efficacious and safe treatment for PSD. According to our results, EA may alleviate depressive symptoms, and improve neurological function and capabilities with respect to activities of daily living (ADLs). Trial registration number: ChiCTR-IOR-17012610 (Chinese Clinical Trial Registry).