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Pupíková M, Maceira-Elvira P, Harquel S, Šimko P, Popa T, Gajdoš M, Lamoš M, Nencha U, Mitterová K, Šimo A, Hummel FC, Rektorová I. Physiology-inspired bifocal fronto-parietal tACS for working memory enhancement. Heliyon 2024; 10:e37427. [PMID: 39315230 PMCID: PMC11417162 DOI: 10.1016/j.heliyon.2024.e37427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 08/14/2024] [Accepted: 09/03/2024] [Indexed: 09/25/2024] Open
Abstract
Aging populations face significant cognitive challenges, particularly in working memory (WM). Transcranial alternating current stimulation (tACS) offer promising avenues for cognitive enhancement, especially when inspired by brain physiology. This study (NCT04986787) explores the effect of multifocal tACS on WM performance in healthy older adults, focusing on fronto-parietal network modulation. Individualized physiology-inspired tACS applied to the fronto-parietal network was investigated in two blinded cross-over experiments. The first experiment involved monofocal/bifocal theta-tACS to the fronto-parietal network, while in the second experiment cross-frequency theta-gamma interactions between these regions were explored. Participants have done online WM tasks under the stimulation conditions. Network connectivity was assessed via rs-fMRI and multichannel electroencephalography. Prefrontal monofocal theta tACS modestly improved WM accuracy over sham (d = 0.30). Fronto-parietal stimulation enhanced WM task processing speed, with the strongest effects for bifocal in-phase theta tACS (d = 0.41). Cross-frequency stimulations modestly boosted processing speed with or without impairing task accuracy depending on the stimulation protocol. This research adds to the understanding of physiology-inspired brain stimulation for cognitive enhancement in older subjects.
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Affiliation(s)
- Monika Pupíková
- Applied Neuroscience Research Group, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Pablo Maceira-Elvira
- Neuro-X Institute (INX), École Polytechnique Fédérale de Lausanne (EPFL), Chemin des Mines 9, 1202, CH, Geneva, Switzerland
- Neuro-X Institute (INX), EPFL Valais, Clinique Romande de Réadaptation Sion, Switzerland
| | - Sylvain Harquel
- Neuro-X Institute (INX), École Polytechnique Fédérale de Lausanne (EPFL), Chemin des Mines 9, 1202, CH, Geneva, Switzerland
| | - Patrik Šimko
- Applied Neuroscience Research Group, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Traian Popa
- Neuro-X Institute (INX), École Polytechnique Fédérale de Lausanne (EPFL), Chemin des Mines 9, 1202, CH, Geneva, Switzerland
- Neuro-X Institute (INX), EPFL Valais, Clinique Romande de Réadaptation Sion, Switzerland
| | - Martin Gajdoš
- International Clinical Research Center, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
- Brain and Mind Research, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
- First Department of Neurology, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
| | - Martin Lamoš
- International Clinical Research Center, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
- Brain and Mind Research, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
- First Department of Neurology, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
| | - Umberto Nencha
- Neuro-X Institute (INX), École Polytechnique Fédérale de Lausanne (EPFL), Chemin des Mines 9, 1202, CH, Geneva, Switzerland
- Clinical Neuroscience, University of Geneva Medical School, Geneva, Switzerland
| | - Kristína Mitterová
- Applied Neuroscience Research Group, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
| | - Adam Šimo
- First Department of Neurology, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
| | - Friedhelm C. Hummel
- Neuro-X Institute (INX), École Polytechnique Fédérale de Lausanne (EPFL), Chemin des Mines 9, 1202, CH, Geneva, Switzerland
- Neuro-X Institute (INX), EPFL Valais, Clinique Romande de Réadaptation Sion, Switzerland
- Clinical Neuroscience, University of Geneva Medical School, Geneva, Switzerland
| | - Irena Rektorová
- Applied Neuroscience Research Group, Central European Institute of Technology, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
- First Department of Neurology, Faculty of Medicine and St. Anne's University Hospital, Masaryk University, Brno, Czech Republic
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Liu H, Wu M, Huang H, Chen X, Zeng P, Xu Y. Comparative efficacy of non-invasive brain stimulation on cognition function in patients with mild cognitive impairment: A systematic review and network meta-analysis. Ageing Res Rev 2024; 101:102508. [PMID: 39303877 DOI: 10.1016/j.arr.2024.102508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 09/14/2024] [Indexed: 09/22/2024]
Abstract
BACKGROUND Mild cognitive impairment (MCI) is a critical time window for implementing prevention strategies to attenuate or delay cognitive decline. Non-invasive brain stimulation (NIBS) techniques are promising non-pharmacological therapies for improving the cognitive function of MCI, but it is unclear which type of NIBS protocol is most effective. This study aimed to compare and rank the beneficial effect of different NIBS methods/protocols on cognitive function and examine the acceptability of NIBS in patients with MCI. METHODS Electronic search of PubMed, Cochrane Library, EMBASE, China National Knowledge Infrastructure, Wanfang Database, and Chongqing VIP Database up to November 2023. Patients with diagnosis of MCI were included. The primary outcomes were acceptability and pre-post treatment changes in global cognitive function, and the secondary outcomes were specific cognitive domains (language and executive function). All network meta‑analysis procedures were performed under the frequentist model. A protocol for this systematic review was registered in PROSPERO (Registration number: CRD42023441448). RESULTS A network meta-analysis was conducted on 19 eligible RCTs consisting of 599 subjects. Compared with the sham stimulation, Repetitive Transcranial Magnetic Stimulation over the Bilateral dorsolateral prefrontal cortex (rTMS-F3F4) showed the strongest improvement in global cognitive function in MCI patients (SMD =1.52[95 %CIs =0.49-2.56]), followed by rTMS over the left dorsolateral prefrontal cortex (rTMS-F3) (SMD =1.25[95 %CIs =0.57-1.93]); Moreover, rTMS-F3F4 showed more significant efficacy in language function (SMD =0.96[95 %CIs = 0.20-1.72]); No statistically significant differences were found among the other cognitive domains. Compared with the rTMS-F4, rTMS-F3F4 showed a stronger improvement in global cognitive function in MCI patients (SMD =1.80[95 %CIs =0.02-3.59]). Similar results were obtained in subgroup analyses of cognitive function. All the methods were well-tolerated with an acceptable safety profile. CONCLUSION The present findings provide evidence of the benefits of NIBS, especially TMS stimulating the bilateral dorsolateral prefrontal cortex, for the beneficial effect on cognitive and language function in patients with MCI. However, because few studies were available for inclusion, additional well-designed, large-scale RCTs are warranted to support exploring longer-term dynamic effects.
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Affiliation(s)
- Hong Liu
- Department of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Mengyuan Wu
- Department of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Haoyu Huang
- Department of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Xiaolin Chen
- Department of Rehabilitation, Dongguan Songshan Lake Tungwah Hospital, DongGuan, China
| | - Peiling Zeng
- Department of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Ying Xu
- National-Local Joint Engineering Research Center of Rehabilitation Medicine Technology, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China.
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Rektorová I. Non-invasive stimulation for treating cognitive impairment in Alzheimer disease. Nat Rev Neurol 2024; 20:445-446. [PMID: 38944654 DOI: 10.1038/s41582-024-00976-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Affiliation(s)
- Irena Rektorová
- First Department of Neurology, St Anne's University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic.
- Applied Neuroscience Research Group, CEITEC, Masaryk University, Brno, Czech Republic.
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Chen Y, Hou X, Zhou H, Han R, Lv T, Yang Z, Zheng W, Bai F. Distinguishable neural circuit mechanisms associated with the clinical efficacy of rTMS in aMCI patients. Cereb Cortex 2024; 34:bhae310. [PMID: 39077918 DOI: 10.1093/cercor/bhae310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/02/2024] [Accepted: 07/13/2024] [Indexed: 07/31/2024] Open
Abstract
Repetitive transcranial magnetic stimulation is used in early-stage Alzheimer's disease to slow progression, but heterogeneity in response results in different treatment outcomes. The mechanisms underlying this heterogeneity are unclear. This study used resting-state neuroimaging to investigate the variability in episodic memory improvement from angular gyrus repetitive transcranial magnetic stimulation and tracked the neural circuits involved. Thirty-four amnestic mild cognitive impairment patients underwent angular gyrus repetitive transcranial magnetic stimulation (4 weeks, 20 Hz, 100% resting motor threshold) and were divided into high-response and low-response groups based on minimal clinically important differences in auditory verbal learning test scores. Baseline and pre/post-treatment neural circuit activities were compared. Results indicated that the orbital middle frontal gyrus in the orbitofrontal cortex network and the precuneus in the default mode network had higher local activity in the low-response group. After treatment, changes in local and remote connectivity within brain regions of the orbitofrontal cortex, default mode network, visual network, and sensorimotor network showed opposite trends and were related to treatment effects. This suggests that the activity states of brain regions within the orbitofrontal cortex and default mode network could serve as imaging markers for early cognitive compensation in amnestic mild cognitive impairment patients and predict the aftereffects of repetitive transcranial magnetic stimulation response.
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Affiliation(s)
- Ya Chen
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210000, China
| | - Xinle Hou
- Department of Neurology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210000, China
| | - Huijuan Zhou
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210000, China
| | - RuiChen Han
- Department of Neurology, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing 210000, China
| | - Tingyu Lv
- Department of Neurology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210000, China
- Geriatric Medicine Center, Taikang Xianlin Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210023, China
| | - Zhiyuan Yang
- Department of Neurology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210000, China
| | - Wenao Zheng
- Department of Neurology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210000, China
| | - Feng Bai
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210000, China
- Department of Neurology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210000, China
- Department of Neurology, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing 210000, China
- Geriatric Medicine Center, Taikang Xianlin Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210023, China
- Institute of Geriatric Medicine, Medical School of Nanjing University, Nanjing 210000, China
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Yang T, Liu W, He J, Gui C, Meng L, Xu L, Jia C. The cognitive effect of non-invasive brain stimulation combined with cognitive training in Alzheimer's disease and mild cognitive impairment: a systematic review and meta-analysis. Alzheimers Res Ther 2024; 16:140. [PMID: 38937842 PMCID: PMC11212379 DOI: 10.1186/s13195-024-01505-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 06/17/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Non-invasive brain stimulation (NIBS) combined with cognitive training (CT) may have shown some prospects on improving cognitive function in patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI). However, data from clinical trials or meta-analysis involving NIBS combined with CT have shown controversial results. The aim of this systematic review and meta-analysis was to evaluate short-term and long-term effects of NIBS combined with CT on improving global cognition and other specific cognitive domains in patients with AD and MCI. METHODS This systematic review and meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Five electronic databases including PubMed, Web of Science, EBSCO, Cochrane Library and Embase were searched up from inception to 20 November 2023. The PEDro scale and the Cochrane's risk of bias assessment were used to evaluate risk of bias and methodological quality of included studies. All statistical analyses were conducted with Review Manager 5.3. RESULTS We included 15 studies with 685 patients. The PEDro scale was used to assess methodological quality with a mean score of 7.9. The results of meta-analysis showed that NIBS combined with CT was effective on improving global cognition in AD and MCI (SMD = 0.52, 95% CI (0.18, 0.87), p = 0.003), especially for patients accepting repetitive transcranial magnetic stimulation (rTMS) combined with CT (SMD = 0.46, 95% CI (0.14, 0.78), p = 0.005). AD could achieve global cognition improvement from NIBS combined with CT group (SMD = 0.77, 95% CI (0.19, 1.35), p = 0.01). Transcranial direct current stimulation (tDCS) combined with CT could improve language function in AD and MCI (SMD = 0.29, 95% CI (0.03, 0.55), p = 0.03). At evaluation follow-up, rTMS combined with CT exhibited larger therapeutic responses to AD and MCI in global cognition (SMD = 0.55, 95% CI (0.09, 1.02), p = 0.02). AD could achieve global cognition (SMD = 0.40, 95% CI (0.03, 0.77), p = 0.03) and attention/working memory (SMD = 0.72, 95% CI (0.23, 1.20), p = 0.004) improvement after evaluation follow-up from NIBS combined with CT group. CONCLUSIONS Overall, NIBS combined with CT, particularly rTMS combined with CT, has both short-term and follow-up effects on improving global cognition, mainly in patients with AD. tDCS combined with CT has advantages on improving language function in AD and MCI. Future more studies need evaluate cognitive effects of NIBS combined with CT on other specific cognitive domain in patients with cognitive deterioration.
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Affiliation(s)
- Ting Yang
- Department of Rehabilitation Medicine, West China Tianfu Hospital, Sichuan University, No. 3966, South Section 2, Tianfu Avenue, Tianfu New Area, Chengdu, 610212, Sichuan, China
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
| | - Wentao Liu
- Department of Rehabilitation Medicine, West China Tianfu Hospital, Sichuan University, No. 3966, South Section 2, Tianfu Avenue, Tianfu New Area, Chengdu, 610212, Sichuan, China
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
| | - Jiali He
- Department of Rehabilitation Medicine, The Second Hospital of Chongzhou, No. 431, Tang'an West Road, Chongyang Town, Chongzhou City, Chengdu, 611230, Sichuan, China
| | - Chenfan Gui
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
| | - Lijiao Meng
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China
| | - Li Xu
- Department of Rehabilitation Medicine, The Second Hospital of Chongzhou, No. 431, Tang'an West Road, Chongyang Town, Chongzhou City, Chengdu, 611230, Sichuan, China
| | - Chengsen Jia
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China.
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, No. 37, Guo Xue Alley, Chengdu, 610041, Sichuan, China.
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Zhang B, Deng L, Liu X, Hu Y, Wang W, Li M, Xu T, Pang L, Lv M. Transcranial direct current stimulation combined with swimming exercise improves the learning and memory abilities of vascular dementia rats by regulating microglia through miR-223-3p/PRMT8. Neurol Res 2024; 46:525-537. [PMID: 38563325 DOI: 10.1080/01616412.2024.2337517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Vascular dementia (VD) is the second most common type of dementia worldwide. Previous studies have proven that transcranial direct current stimulation (tDCS) has potential applications in relieving cognitive impairment in VD animal models. The purpose of this study was to probe the mechanism by which tDCS combined with swimming exercise improves the learning and memory abilities of VD model rats. METHOD The VD rat model was induced using the permanent bilateral common carotid artery occlusion (2-VO) method; tDCS was applied to the rats and then they took part in swimming exercises. Rat memory, platform crossing time, and platform crossing frequency were analyzed via a water maze experiment. Nerve damage in the cortex and hippocampal CA1 area of the rats was observed using Nissl staining. Western blotting, immunohistochemistry, immunofluorescence staining and reverse transcription quantitative polymerase chain reaction (RT - qPCR) were used to determine the expression of related proteins and genes. The levels of oxidative stress were detected by kits. RESULTS We demonstrated that VD model rats treated with tDCS combined with swimming exercise exhibited significant improvement in memory, and VD model rats exhibited significantly reduced neuronal loss in the hippocampus, and reduced microglial activation and M1 polarization. tDCS combined with swimming exercise protects VD model rats from oxidative stress through the miR-223-3p/protein arginine methyltransferase 8 (PRMT8) axis and inhibits the activation of the TLR4/NF-κB signaling pathway. CONCLUSION Our results suggest that tDCS combined with swimming exercise improved the learning and memory ability of VD model rats by regulating the expression of PRMT8 through miR-223-3p to affect microglial activation and M1 polarization.
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Affiliation(s)
- Bingxue Zhang
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Li Deng
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Xiaodan Liu
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Yao Hu
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Wenyi Wang
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Minghua Li
- Department of Neurology, Luoping County People's Hospital, Luoping, Yunnan, China
| | - Ting Xu
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Li Pang
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
| | - Meifen Lv
- Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, Yunnan, China
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Zhang Z, Ding C, Fu R, Wang J, Zhao J, Zhu H. Low-frequency rTMS modulated the excitability and high-frequency firing in hippocampal neurons of the Alzheimer's disease mouse model. Brain Res 2024; 1831:148822. [PMID: 38408558 DOI: 10.1016/j.brainres.2024.148822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/05/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
Repetitive transcranial magnetic stimulation (rTMS), a non-invasive brain stimulation technique, holds potential for applications in the treatment of Alzheimer's disease (AD). This study aims to compare the therapeutic effects of rTMS at different frequencies on Alzheimer's disease and explore the alterations in neuronal electrophysiological properties throughout this process. APP/PS1 AD mice were subjected to two rTMS treatments at 0.5 Hz and 20 Hz, followed by assessments of therapeutic outcomes through the Novel Object Recognition (NOR) and Morris Water Maze (MWM) tests. Following this, whole-cell patch-clamp techniques were used to record action potential, voltage-gated sodium channel currents, and voltage-gated potassium channel currents in dentate gyrus granule neurons. The results show that AD mice exhibit significant cognitive decline compared to normal mice, along with a pronounced reduction in neuronal excitability and ion channel activity. Both frequencies of rTMS treatment partially reversed these changes, demonstrating similar therapeutic efficacy. Furthermore, the investigation indicates that low-frequency magnetic stimulation inhibited the concentrated firing of early action potentials in AD.
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Affiliation(s)
- Ze Zhang
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China; Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, Tianjin 300130, China.
| | - Chong Ding
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China; Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, Tianjin 300130, China; State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin 300130, China.
| | - Rui Fu
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China; Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, Tianjin 300130, China.
| | - Jiale Wang
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China; Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, Tianjin 300130, China.
| | - Junqiao Zhao
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China; Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, Tianjin 300130, China.
| | - Haijun Zhu
- Key Laboratory of Digital Medical Engineering of Hebei Province, College of Electronic & Information Engineering, Hebei University, Baoding, Hebei 071002, China.
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von Bastian CC, Hyde ERA, Jiang S. Tackling cognitive decline in late adulthood: Cognitive interventions. Curr Opin Psychol 2024; 56:101780. [PMID: 38176281 DOI: 10.1016/j.copsyc.2023.101780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 01/06/2024]
Abstract
Affordable and easy-to-administer interventions such as cognitive training, cognitively stimulating everyday leisure activities, and non-invasive brain stimulation techniques, are promising avenues to counteract age-related cognitive decline and support people in maintaining cognitive health into late adulthood. However, the same pattern of findings emerges across all three fields of cognitive intervention research: whereas improvements within the intervention context are large and often reliable, generalisation to other cognitive abilities and contexts are severely limited. These findings suggest that while cognitive interventions can enhance the efficiency with which people use their existing cognitive capacity, these interventions are unlikely to expand existing capacity limits. Therefore, future research investigating generalisation of enhanced efficiency constitutes a promising avenue for developing reliably effective cognitive interventions.
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Affiliation(s)
- Claudia C von Bastian
- Department of Psychology and Neuroscience Institute, University of Sheffield, United Kingdom.
| | - Eleanor R A Hyde
- Department of Psychology and Neuroscience Institute, University of Sheffield, United Kingdom
| | - Shuangke Jiang
- Department of Psychology and Neuroscience Institute, University of Sheffield, United Kingdom
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Manippa V, Palmisano A, Nitsche MA, Filardi M, Vilella D, Logroscino G, Rivolta D. Cognitive and Neuropathophysiological Outcomes of Gamma-tACS in Dementia: A Systematic Review. Neuropsychol Rev 2024; 34:338-361. [PMID: 36877327 PMCID: PMC10920470 DOI: 10.1007/s11065-023-09589-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 01/23/2023] [Indexed: 03/07/2023]
Abstract
Despite the numerous pharmacological interventions targeting dementia, no disease-modifying therapy is available, and the prognosis remains unfavorable. A promising perspective involves tackling high-frequency gamma-band (> 30 Hz) oscillations involved in hippocampal-mediated memory processes, which are impaired from the early stages of typical Alzheimer's Disease (AD). Particularly, the positive effects of gamma-band entrainment on mouse models of AD have prompted researchers to translate such findings into humans using transcranial alternating current stimulation (tACS), a methodology that allows the entrainment of endogenous cortical oscillations in a frequency-specific manner. This systematic review examines the state-of-the-art on the use of gamma-tACS in Mild Cognitive Impairment (MCI) and dementia patients to shed light on its feasibility, therapeutic impact, and clinical effectiveness. A systematic search from two databases yielded 499 records resulting in 10 included studies and a total of 273 patients. The results were arranged in single-session and multi-session protocols. Most of the studies demonstrated cognitive improvement following gamma-tACS, and some studies showed promising effects of gamma-tACS on neuropathological markers, suggesting the feasibility of gamma-tACS in these patients anyhow far from the strong evidence available for mouse models. Nonetheless, the small number of studies and their wide variability in terms of aims, parameters, and measures, make it difficult to draw firm conclusions. We discuss results and methodological limitations of the studies, proposing possible solutions and future avenues to improve research on the effects of gamma-tACS on dementia.
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Affiliation(s)
- Valerio Manippa
- Department of Education, Psychology and Communication, University of Bari "Aldo Moro", Bari, Italy.
| | - Annalisa Palmisano
- Department of Education, Psychology and Communication, University of Bari "Aldo Moro", Bari, Italy
| | - Michael A Nitsche
- Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany
- Department of Neurology, University Medical Hospital Bergmannsheil, Bochum, Germany
| | - Marco Filardi
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro" at Pia Fondazione "Cardinale G. Panico", Tricase, Lecce, Italy
- Department of Basic Medicine, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | - Davide Vilella
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro" at Pia Fondazione "Cardinale G. Panico", Tricase, Lecce, Italy
| | - Giancarlo Logroscino
- Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro" at Pia Fondazione "Cardinale G. Panico", Tricase, Lecce, Italy
- Department of Basic Medicine, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | - Davide Rivolta
- Department of Education, Psychology and Communication, University of Bari "Aldo Moro", Bari, Italy
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Tzavellas NP, Tsamis KI, Katsenos AP, Davri AS, Simos YV, Nikas IP, Bellos S, Lekkas P, Kanellos FS, Konitsiotis S, Labrakakis C, Vezyraki P, Peschos D. Firing Alterations of Neurons in Alzheimer's Disease: Are They Merely a Consequence of Pathogenesis or a Pivotal Component of Disease Progression? Cells 2024; 13:434. [PMID: 38474398 DOI: 10.3390/cells13050434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, yet its underlying causes remain elusive. The conventional perspective on disease pathogenesis attributes alterations in neuronal excitability to molecular changes resulting in synaptic dysfunction. Early hyperexcitability is succeeded by a progressive cessation of electrical activity in neurons, with amyloid beta (Aβ) oligomers and tau protein hyperphosphorylation identified as the initial events leading to hyperactivity. In addition to these key proteins, voltage-gated sodium and potassium channels play a decisive role in the altered electrical properties of neurons in AD. Impaired synaptic function and reduced neuronal plasticity contribute to a vicious cycle, resulting in a reduction in the number of synapses and synaptic proteins, impacting their transportation inside the neuron. An understanding of these neurophysiological alterations, combined with abnormalities in the morphology of brain cells, emerges as a crucial avenue for new treatment investigations. This review aims to delve into the detailed exploration of electrical neuronal alterations observed in different AD models affecting single neurons and neuronal networks.
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Affiliation(s)
- Nikolaos P Tzavellas
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Konstantinos I Tsamis
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
- Department of Neurology, Faculty of Medicine, School of Health Sciences, University Hospital of Ioannina, 455 00 Ioannina, Greece
| | - Andreas P Katsenos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Athena S Davri
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Yannis V Simos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Ilias P Nikas
- Medical School, University of Cyprus, 2029 Nicosia, Cyprus
| | - Stefanos Bellos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Panagiotis Lekkas
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Foivos S Kanellos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Spyridon Konitsiotis
- Department of Neurology, Faculty of Medicine, School of Health Sciences, University Hospital of Ioannina, 455 00 Ioannina, Greece
| | - Charalampos Labrakakis
- Department of Biological Applications and Technology, University of Ioannina, 451 10 Ioannina, Greece
| | - Patra Vezyraki
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
| | - Dimitrios Peschos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece
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11
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Šimko P, Pupíková M, Gajdoš M, Klobušiaková P, Vávra V, Šimo A, Rektorová I. Exploring the impact of intensified multiple session tDCS over the left DLPFC on brain function in MCI: a randomized control trial. Sci Rep 2024; 14:1512. [PMID: 38233437 PMCID: PMC10794210 DOI: 10.1038/s41598-024-51690-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024] Open
Abstract
Transcranial direct current stimulation combined with cognitive training (tDCS-cog) represents a promising approach to combat cognitive decline among healthy older adults and patients with mild cognitive impairment (MCI). In this 5-day-long double-blinded randomized trial, we investigated the impact of intensified tDCS-cog protocol involving two trains of stimulation per day on working memory (WM) enhancement in 35 amnestic and multidomain amnestic MCI patients. Specifically, we focused to improve WM tasks relying on top-down attentional control and hypothesized that intensified tDCS would enhance performance of visual object matching task (VOMT) immediately after the stimulation regimen and at a 1-month follow-up. Secondarily, we explored whether the stimulation would augment online visual working memory training. Using fMRI, we aimed to elucidate the neural mechanisms underlying the intervention effects by analyzing BOLD activations during VOMT. Our main finding revealed no superior after-effects of tDCS-cog over the sham on VOMT among individuals with MCI as indicated by insignificant immediate and long-lasting after-effects. Additionally, the tDCS-cog did not enhance online training as predicted. The fMRI analysis revealed brain activity alterations in right insula that may be linked to tDCS-cog intervention. In the study we discuss the insignificant behavioral results in the context of the current evidence in tDCS parameter space and opening the discussion of possible interference between trained cognitive tasks.
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Affiliation(s)
- P Šimko
- Applied Neuroscience Research Group, Central European Institute of Technology - CEITEC, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - M Pupíková
- Applied Neuroscience Research Group, Central European Institute of Technology - CEITEC, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - M Gajdoš
- Applied Neuroscience Research Group, Central European Institute of Technology - CEITEC, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- First Department of Neurology, Faculty of Medicine and St. Anne's University Hospital, Brno, Czech Republic
| | - P Klobušiaková
- Applied Neuroscience Research Group, Central European Institute of Technology - CEITEC, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- Surgeon General Office of the, Slovak Armed Forces, Ružomberok, Slovak Republic
| | - V Vávra
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - A Šimo
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - I Rektorová
- Applied Neuroscience Research Group, Central European Institute of Technology - CEITEC, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
- First Department of Neurology, Faculty of Medicine and St. Anne's University Hospital, Brno, Czech Republic.
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12
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Kavanaugh BC, Fukuda AM, Gemelli ZT, Thorpe R, Tirrell E, Vigne M, Jones SR, Carpenter LL. Pre-treatment frontal beta events are associated with executive dysfunction improvement after repetitive transcranial magnetic stimulation for depression: A preliminary report. J Psychiatr Res 2023; 168:71-81. [PMID: 37897839 DOI: 10.1016/j.jpsychires.2023.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/31/2023] [Accepted: 10/14/2023] [Indexed: 10/30/2023]
Abstract
Repetitive transcranial magnetic stimulation (rTMS) is an established clinical treatment for major depressive disorder (MDD) that has also been found to improve aspects of executive functioning. The objective of this study was to examine whether oscillatory burst-like events within the beta band (15-29 Hz) prior to treatment could predict subsequent change in self-reported executive dysfunction (EDF) across a clinical course of rTMS for MDD. Twenty-eight adults (64% female) with MDD completed the self-report Frontal Systems Behavior Scale (FrSBe) and provided eyes-closed resting-state electroencephalography (EEG) before and after a clinical course of rTMS therapy for primary MDD. The rate, power, duration, and frequency span of transient EEG measured oscillatory beta events were calculated. Events within delta/theta and alpha bands were examined to assess for beta specificity. After controlling for improvement in primary depressive symptoms, a lower rate of beta events at F3, Fz, F4, and Cz prior to rTMS treatment was associated with a larger improvement in EDF after rTMS treatment. In addition, a decrease in beta event rate at Fz pre-to-post treatment was associated with a larger improvement in EDF after treatment. Results were largely specific to the beta band. In this study, the rate of frontrocentral beta events prior to treatment significantly predicted the likelihood of subsequent improvement in EDF symptoms following a clinical course of rTMS for MDD. These preliminary findings suggest the potential utility of EEG measured beta events and rTMS for targeting EDF across an array of neuropsychiatric disorders.
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Affiliation(s)
- Brian C Kavanaugh
- E.P. Bradley Hospital, United States; Brown University, Department of Psychiatry & Human Behavior, United States.
| | - Andrew M Fukuda
- Brown University, Department of Psychiatry & Human Behavior, United States; Butler Hospital, United States
| | - Zachary T Gemelli
- Brown University, Department of Psychiatry & Human Behavior, United States; Rhode Island Hospital, United States
| | - Ryan Thorpe
- Brown University, Department of Neuroscience, United States
| | - Eric Tirrell
- Brown University, Department of Psychiatry & Human Behavior, United States; Butler Hospital, United States
| | - Megan Vigne
- Brown University, Department of Psychiatry & Human Behavior, United States; Butler Hospital, United States
| | - Stephanie R Jones
- Brown University, Department of Neuroscience, United States; Providence Veteran's Association Medical Center, Center for Neurorestoration and Neurotechnology, United States
| | - Linda L Carpenter
- Brown University, Department of Psychiatry & Human Behavior, United States; Butler Hospital, United States
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13
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Saleh O, Assaf M, Alzoubi A, Anshase A, Tarkhan H, Ayoub M, Abuelazm M. The effects of transcranial direct current stimulation on cognitive function for mild cognitive impairment: a systematic review and meta-analysis of randomized controlled trials. Aging Clin Exp Res 2023; 35:2293-2306. [PMID: 37668843 DOI: 10.1007/s40520-023-02528-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 08/03/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Transcranial direct current stimulation (tDCS) emerged as a potential modality for enhancing cognitive functions in patients with cognitive decline, including mild cognitive impairment (MCI). Our systematic review and meta-analysis aim to synthesize the available randomized controlled trials (RCTs) on the effects of tDCS on cognitive functions in patients with MCI. METHODS Our review protocol was registered on PROSPERO with ID: CRD42022360587. We conducted a systematic database search until September 2022. Standardized mean difference (SMD) and pooled effect size (ES) for robust variance estimation (RVE) method were used as effect estimates for our meta-analysis. RESULTS We included 11 RCTs with a total of 429 participants. The meta-analysis showed that, compared to sham groups, tDCS did not improve global functioning (measured by MOCA) (SMD = 0.02, CI = - 0.30 to 0.35; p = 0.88), memory domain (ES = 0.681, CI = - 2.15 to 3.51, p = 0.576), sustained attention (measured by TMT-A) (SMD = - 0.21, CI = - 0.52 to 0.10, p = 0.19), and executive function (measured by TMT-B) (SMD = - 0.53, CI = - 1.56 to 0.50, p = 0.20). CONCLUSION Our meta-analysis found no significant effect of tDCS on cognitive functions in MCI patients, including effects on global functioning, memory, sustained attention, and executive function. Therefore, an important change to be tested in future studies is to look for a better combination with tDCS for patients with MCI.
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Affiliation(s)
- Othman Saleh
- Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Mohammad Assaf
- Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Ahmad Alzoubi
- Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Ahmad Anshase
- Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Husam Tarkhan
- Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Motasem Ayoub
- Faculty of Medicine, The Hashemite University, Zarqa, Jordan
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14
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Roumpea G, Bon J, Marjanovič K, Pirtošek Z, Manouilidou C. Facilitated lexical processing accuracy and reaction times following repetitive Transcranial Magnetic Stimulation in dementia of the Alzheimer type: a case study. Neurocase 2023; 29:151-159. [PMID: 38700041 DOI: 10.1080/13554794.2024.2348222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 04/16/2024] [Indexed: 05/05/2024]
Abstract
We investigated the potential effects of high-frequency (10 Hz) repetitive Transcranial Magnetic Stimulation (rTMS) of the bilateral Dorsolateral Prefrontal Cortex (DLPFC) (30-sessions; 2-sessions/day) on improving lexical processing in one participant with mild - Alzheimer's disease (hereafter dementia of the Alzheimer type-DAT). Increased accuracy and faster reaction times (RTs) were reported in a lexical-decision task (LDT) up to 2-months post-intervention. The current findings indicate that high-frequency stimulation of the DLPFC might be a potential therapeutic tool to improve lexical processing in mild-DAT.
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Affiliation(s)
- Georgia Roumpea
- Faculty of Arts, Department of Comparative and General Linguistics, University of Ljubljana, Ljubljana, Slovenia
| | - Jurij Bon
- Department of Neurology, University Medical Centre, Ljubljana, Slovenia
- Centre for Clinical Psychiatry, University Psychiatric Clinic, Ljubljana, Slovenia
| | - Katarina Marjanovič
- Faculty of Arts, Department of Comparative and General Linguistics, University of Ljubljana, Ljubljana, Slovenia
| | - Zvezdan Pirtošek
- Department of Neurology, University Medical Centre, Ljubljana, Slovenia
| | - Christina Manouilidou
- Faculty of Arts, Department of Comparative and General Linguistics, University of Ljubljana, Ljubljana, Slovenia
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15
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Altomare D, Benussi A, Cantoni V, Premi E, Rivolta J, Cupidi C, Martorana A, Santarnecchi E, Padovani A, Koch G, Borroni B. Home-based transcranial alternating current stimulation (tACS) in Alzheimer's disease: rationale and study design. Alzheimers Res Ther 2023; 15:155. [PMID: 37715232 PMCID: PMC10503166 DOI: 10.1186/s13195-023-01297-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/24/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Gamma (γ) brain oscillations are dysregulated in Alzheimer's disease (AD) and can be modulated using transcranial alternating stimulation (tACS). In the present paper, we describe the rationale and design of a study assessing safety, feasibility, clinical and biological efficacy, and predictors of outcome of a home-based intervention consisting of γ-tACS over the precuneus. METHODS In a first phase, 60 AD patients will be randomized into two arms: ARM1, 8-week precuneus γ-tACS (frequency: 40 Hz, intensity: 2 mA, duration: 5 60-min sessions/week); and ARM2, 8-week sham tACS (same parameters as the real γ-tACS, with the current being discontinued 5 s after the beginning of the stimulation). In a second phase, all participants will receive 8-week γ-tACS (same parameters as the real γ-tACS in the first phase). The study outcomes will be collected at several timepoints throughout the study duration and include information on safety and feasibility, neuropsychological assessment, blood sampling, electroencephalography, transcranial magnetic stimulation neurotransmitter measures, and magnetic resonance imaging or amyloid positron emission tomography. RESULTS We expect that this intervention is safe and feasible and results in the improvement of cognition, entrainment of gamma oscillations, increased functional connectivity, reduction of pathological burden, and increased cholinergic transmission. CONCLUSIONS If our expected results are achieved, home-based interventions using γ-tACS, either alone or in combination with other therapies, may become a reality for treating AD. TRIAL REGISTRATION PNRR-POC-2022-12376021.
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Affiliation(s)
- Daniele Altomare
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
| | - Alberto Benussi
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
- Department of Continuity of Care and Frailty, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123, Brescia, Italy
| | - Valentina Cantoni
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
| | - Enrico Premi
- Stroke Unit, ASST Spedali Civili, Brescia, Italy
| | - Jasmine Rivolta
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
| | - Chiara Cupidi
- Neurology Unit, Fondazione Istituto G. Giglio, Cefalù, Italy
| | - Alessandro Martorana
- Department of Systems Medicine, Memory Clinic, University of Rome Tor Vergata, Rome, Italy
| | - Emiliano Santarnecchi
- Department of Radiology, Precision Neuroscience and Neuromodulation Program, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Alessandro Padovani
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
- Department of Continuity of Care and Frailty, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123, Brescia, Italy
| | - Giacomo Koch
- Department of Clinical and Behavioral Neurology, Fondazione Santa Lucia IRCCS, Rome, Italy
- Department of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - Barbara Borroni
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy.
- Department of Continuity of Care and Frailty, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123, Brescia, Italy.
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16
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Semyachkina-Glushkovskaya O, Penzel T, Poluektov M, Fedosov I, Tzoy M, Terskov A, Blokhina I, Sidorov V, Kurths J. Phototherapy of Alzheimer's Disease: Photostimulation of Brain Lymphatics during Sleep: A Systematic Review. Int J Mol Sci 2023; 24:10946. [PMID: 37446135 DOI: 10.3390/ijms241310946] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/18/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
The global number of people with Alzheimer's disease (AD) doubles every 5 years. It has been established that unless an effective treatment for AD is found, the incidence of AD will triple by 2060. However, pharmacological therapies for AD have failed to show effectiveness and safety. Therefore, the search for alternative methods for treating AD is an urgent problem in medicine. The lymphatic drainage and removal system of the brain (LDRSB) plays an important role in resistance to the progression of AD. The development of methods for augmentation of the LDRSB functions may contribute to progress in AD therapy. Photobiomodulation (PBM) is considered to be a non-pharmacological and safe approach for AD therapy. Here, we highlight the most recent and relevant studies of PBM for AD. We focus on emerging evidence that indicates the potential benefits of PBM during sleep for modulation of natural activation of the LDRSB at nighttime, providing effective removal of metabolites, including amyloid-β, from the brain, leading to reduced progression of AD. Our review creates a new niche in the therapy of brain diseases during sleep and sheds light on the development of smart sleep technologies for neurodegenerative diseases.
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Affiliation(s)
- Oxana Semyachkina-Glushkovskaya
- Department of Physics, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Thomas Penzel
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
- Interdisziplinäres Schlafmedizinisches Zentrum, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Mikhail Poluektov
- Department of Nervous Diseases, Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya 2, Building 4, 119435 Moscow, Russia
| | - Ivan Fedosov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Maria Tzoy
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Andrey Terskov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Inna Blokhina
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Viktor Sidorov
- Company "Lazma" for Research and Production Enterprise of Laser Medical Equipment, Kuusinena Str. 11, 123308 Moscow, Russia
| | - Jürgen Kurths
- Department of Physics, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
- Department of Complexity Science, Potsdam Institute for Climate Impact Research, Telegrafenberg A31, 14473 Potsdam, Germany
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17
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Ghasemian-Shirvan E, Ungureanu R, Melo L, van Dun K, Kuo MF, Nitsche MA, Meesen RLJ. Optimizing the Effect of tDCS on Motor Sequence Learning in the Elderly. Brain Sci 2023; 13:brainsci13010137. [PMID: 36672118 PMCID: PMC9857096 DOI: 10.3390/brainsci13010137] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
One of the most visible effects of aging, even in healthy, normal aging, is a decline in motor performance. The range of strategies applicable to counteract this deterioration has increased. Transcranial direct current stimulation (tDCS), a non-invasive brain stimulation technique that can promote neuroplasticity, has recently gained attention. However, knowledge about optimized tDCS parameters in the elderly is limited. Therefore, in this study, we investigated the effect of different anodal tDCS intensities on motor sequence learning in the elderly. Over the course of four sessions, 25 healthy older adults (over 65 years old) completed the Serial Reaction Time Task (SRTT) while receiving 1, 2, or 3 mA of anodal or sham stimulation over the primary motor cortex (M1). Additionally, 24 h after stimulation, motor memory consolidation was assessed. The results confirmed that motor sequence learning in all tDCS conditions was maintained the following day. While increased anodal stimulation intensity over M1 showed longer lasting excitability enhancement in the elderly in a prior study, the combination of higher intensity stimulation with an implicit motor learning task showed no significant effect. Future research should focus on the reason behind this lack of effect and probe alternative stimulation protocols.
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Affiliation(s)
- Ensiyeh Ghasemian-Shirvan
- Department of Psychology and Neurosciences, Leibniz Research Center for Working Environment and Human Factors, 44139 Dortmund, Germany
- International Graduate School of Neuroscience, Ruhr-University Bochum, 44780 Bochum, Germany
- Neuroplasticity and Movement Control Research Group, REVAL Rehabilitation Research Center, REVAL, Faculty of Rehabilitation Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Ruxandra Ungureanu
- Department of Psychology and Neurosciences, Leibniz Research Center for Working Environment and Human Factors, 44139 Dortmund, Germany
- Institute of Cognitive Neuroscience, Ruhr-University Bochum, 44801 Bochum, Germany
| | - Lorena Melo
- Department of Psychology and Neurosciences, Leibniz Research Center for Working Environment and Human Factors, 44139 Dortmund, Germany
- International Graduate School of Neuroscience, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Kim van Dun
- Neuroplasticity and Movement Control Research Group, REVAL Rehabilitation Research Center, REVAL, Faculty of Rehabilitation Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Min-Fang Kuo
- Department of Psychology and Neurosciences, Leibniz Research Center for Working Environment and Human Factors, 44139 Dortmund, Germany
| | - Michael A. Nitsche
- Department of Psychology and Neurosciences, Leibniz Research Center for Working Environment and Human Factors, 44139 Dortmund, Germany
- University Clinic of Psychiatry and Psychotherapy and University Clinic of Child and Adolescent Psychiatry and Psychotherapy, Protestant Hospital of Bethel Foundation, University Hospital OWL, Bielefeld University, 33617 Bielefeld, Germany
| | - Raf L. J. Meesen
- Neuroplasticity and Movement Control Research Group, REVAL Rehabilitation Research Center, REVAL, Faculty of Rehabilitation Sciences, Hasselt University, 3590 Diepenbeek, Belgium
- Movement Control and Neuroplasticity Research Group, Department of Movement Sciences, Group Biomedical Sciences, KU Leuven, 3001 Leuven, Belgium
- Correspondence:
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18
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Zhao ZP, Nie C, Jiang CT, Cao SH, Tian KX, Yu S, Gu JW. Modulating Brain Activity with Invasive Brain-Computer Interface: A Narrative Review. Brain Sci 2023; 13:brainsci13010134. [PMID: 36672115 PMCID: PMC9856340 DOI: 10.3390/brainsci13010134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/17/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023] Open
Abstract
Brain-computer interface (BCI) can be used as a real-time bidirectional information gateway between the brain and machines. In particular, rapid progress in invasive BCI, propelled by recent developments in electrode materials, miniature and power-efficient electronics, and neural signal decoding technologies has attracted wide attention. In this review, we first introduce the concepts of neuronal signal decoding and encoding that are fundamental for information exchanges in BCI. Then, we review the history and recent advances in invasive BCI, particularly through studies using neural signals for controlling external devices on one hand, and modulating brain activity on the other hand. Specifically, regarding modulating brain activity, we focus on two types of techniques, applying electrical stimulation to cortical and deep brain tissues, respectively. Finally, we discuss the related ethical issues concerning the clinical application of this emerging technology.
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Affiliation(s)
- Zhi-Ping Zhao
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Chuang Nie
- Strategic Support Force Medical Center, Beijing 100101, China
| | - Cheng-Teng Jiang
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sheng-Hao Cao
- Brainnetome Center and National Laboratory of Pattern Recognition, Chinese Academy of Sciences, Beijing 100190, China
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kai-Xi Tian
- Brainnetome Center and National Laboratory of Pattern Recognition, Chinese Academy of Sciences, Beijing 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shan Yu
- Brainnetome Center and National Laboratory of Pattern Recognition, Chinese Academy of Sciences, Beijing 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (S.Y.); (J.-W.G.); Tel.: +86-010-8254-4786 (S.Y.); +86-010-6635-6729 (J.-W.G.)
| | - Jian-Wen Gu
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
- Strategic Support Force Medical Center, Beijing 100101, China
- Correspondence: (S.Y.); (J.-W.G.); Tel.: +86-010-8254-4786 (S.Y.); +86-010-6635-6729 (J.-W.G.)
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19
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Bok J, Ha J, Ahn BJ, Jang Y. Disease-Modifying Effects of Non-Invasive Electroceuticals on β-Amyloid Plaques and Tau Tangles for Alzheimer's Disease. Int J Mol Sci 2022; 24:ijms24010679. [PMID: 36614120 PMCID: PMC9821138 DOI: 10.3390/ijms24010679] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/22/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
Electroceuticals refer to various forms of electronic neurostimulators used for therapy. Interdisciplinary advances in medical engineering and science have led to the development of the electroceutical approach, which involves therapeutic agents that specifically target neural circuits, to realize precision therapy for Alzheimer's disease (AD). To date, extensive studies have attempted to elucidate the disease-modifying effects of electroceuticals on areas in the brain of a patient with AD by the use of various physical stimuli, including electric, magnetic, and electromagnetic waves as well as ultrasound. Herein, we review non-invasive stimulatory systems and their effects on β-amyloid plaques and tau tangles, which are pathological molecular markers of AD. Therefore, this review will aid in better understanding the recent technological developments, applicable methods, and therapeutic effects of electronic stimulatory systems, including transcranial direct current stimulation, 40-Hz gamma oscillations, transcranial magnetic stimulation, electromagnetic field stimulation, infrared light stimulation and ionizing radiation therapy, and focused ultrasound for AD.
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Affiliation(s)
- Junsoo Bok
- Department of Medical and Digital Engineering, College of Engineering, Hanyang University, Seoul 04736, Republic of Korea
| | - Juchan Ha
- Department of Biomedical Engineering, College of Engineering, Hanyang University, Seoul 04736, Republic of Korea
| | - Bum Ju Ahn
- Department of Pharmacology, College of Medicine, Hanyang University, Seoul 04736, Republic of Korea
| | - Yongwoo Jang
- Department of Medical and Digital Engineering, College of Engineering, Hanyang University, Seoul 04736, Republic of Korea
- Department of Pharmacology, College of Medicine, Hanyang University, Seoul 04736, Republic of Korea
- Correspondence: ; Tel.: +82-2-2220-0655
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