Dual-target tDCS and dual-task training modulate neuroinflammation and neuroplasticity: transcriptomic and behavioral evidence in stroke rehabilitation

作者：Yutong Fu, Qianxi Yan, A.M. Wang, Hongmei Zhang, Wenli Wang, Liqing Yao, Devinder Kaur Ajit Singh · 发表于：Frontiers in Rehabilitation Sciences · 年份：2025 · DOI：10.3389/fresc.2025.1589588 · 被引用次数：5 · 研究领域：Transcranial Magnetic Stimulation Studies、Stroke Rehabilitation and Recovery、Neuroinflammation and Neurodegeneration Mechanisms

Background Transcranial direct current stimulation (tDCS) combined with dual-task training (DTT) has shown potential in promoting neurorehabilitation. However, the transcriptomic mechanisms underlying the synergistic effects of dual-target tDCS remain unexplored. This study aims to evaluate the effects of tDCS + DTT on cognitive and motor functions and preliminarily explore its molecular basis through transcriptomic analysis. Methods Fifty two chronic stroke patients were randomized to receive dual-target tDCS (anodal electrodes over affected primary motor cortex M1 and left dorsolateral prefrontal cortex DLPFC) combined with DTT ( n = 26) or sham stimulation with DTT ( n = 26). Behavioral assessments, including the Visual Cognitive Assessment Test (VCAT), Hamilton Depression Scale (HAMD), Fugl-Meyer Lower Limb Assessment (FMA-L), Timed Up and Go Test (TUG), and Modified Barthel Index (MBI), were conducted before and after the intervention. Peripheral blood transcriptomic analysis was performed on a subset of patients from the tDCS + DTT group to identify differentially expressed genes (DEGs) and enriched pathways. Results Significant interactions were observed for VCAT ( p < 0.001), MBI ( p = 0.033), HAMD ( p < 0.001), FM-L ( p < 0.001), TUG-CMDT time ( p < 0.001), and TUG-CMDT accuracy rate ( p < 0.001). Transcriptomic analysis revealed 1,319 DEGs post-treatment, predominantly downregulating inflammation/apoptosis-related genes (1,155) and...