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Hsu TW, Yeh TC, Kao YC, Thompson T, Brunoni AR, Carvalho AF, Tu YK, Tseng PT, Yu CL, Cheng SL, Liang CS. Response trajectory to left dorsolateral prefrontal rTMS in major depressive disorder: A systematic review and meta-analysis: Trajectory of rTMS. Psychiatry Res 2024; 338:115979. [PMID: 38850891 DOI: 10.1016/j.psychres.2024.115979] [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: 01/13/2024] [Revised: 05/12/2024] [Accepted: 05/25/2024] [Indexed: 06/10/2024]
Abstract
The depression response trajectory after a course of repetitive transcranial magnetic stimulation(rTMS) remains understudied. We searched for blinded randomized controlled trials(RCTs) that examined conventional rTMS over left dorsolateral prefrontal cortex(DLPFC) for major depressive episodes(MDE). The effect size was calculated as the difference in depression improvement, between active and sham rTMS. We conducted a random-effects dose-response meta-analysis to model the response trajectory from the beginning of rTMS to the post-treatment follow-up phase. The area under curve (AUC) of the first 8-week response trajectory was calculated to compare antidepressant efficacy between different rTMS protocols. We included 40 RCTs(n = 2012). The best-fitting trajectory model exhibited a logarithmic curve(X2=17.7, P < 0.001), showing a gradual ascent with tapering off around the 3-4th week mark and maintaining until week 16. The maximum effect size was 6.1(95 %CI: 1.25-10.96) at week 16. The subgroup analyses showed distinct trajectories across different rTMS protocols. Besides, the comparisons of AUC showed that conventional rTMS protocols with more pulse/session group or more total pulses were associated with greater efficacy than those with fewer pulse/session or fewer total pulses, respectively. A course of conventional left DLPFC rTMS could lead to both acute antidepressant effects and sustained after-effects, which were modeled by different rTMS protocols in MDE.
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Affiliation(s)
- Tien-Wei Hsu
- Department of Psychiatry, E-DA Dachang Hospital, I-Shou University, Kaohsiung, Taiwan; Department of Psychiatry, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ta-Chuan Yeh
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Centre, Taipei, Taiwan
| | - Yu-Chen Kao
- Department of Psychiatry, National Defense Medical Centre, Taipei, Taiwan; Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, Taipei, Taiwan
| | - Trevor Thompson
- Centre for Chronic Illness and Ageing, University of Greenwich, London, UK
| | - Andre R Brunoni
- Service of Interdisciplinary Neuromodulation, Laboratory of Neurosciences (LIM-27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-010, Brazil; Service of Electroconvulsive Therapy, Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-010, Brazil
| | - Andre F Carvalho
- IMPACT (Innovation in Mental and Physical Health and Clinical Treatment) Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, Geelong, VIC, Australia
| | - Yu-Kang Tu
- Institute of Epidemiology & Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Ping-Tao Tseng
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan; Department of Psychology, College of Medical and Health Science, Asia University, Taichung, Taiwan; Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung, Taiwan; Institute of Precision Medicine, National Sun Yat-sen University, Kaohsiung City, Taiwan
| | - Chia-Ling Yu
- Department of Pharmacy, Chang Gung Memorial Hospital Linkou, Taipei, Taiwan
| | - Shu-Li Cheng
- Department of Nursing, Mackay Medical College, Taipei, Taiwan.
| | - Chih-Sung Liang
- Department of Psychiatry, National Defense Medical Centre, Taipei, Taiwan; Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, Taipei, Taiwan
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Huo C, Xu G, Xie H, Chen T, Shao G, Wang J, Li W, Wang D, Li Z. Functional near-infrared spectroscopy in non-invasive neuromodulation. Neural Regen Res 2024; 19:1517-1522. [PMID: 38051894 PMCID: PMC10883499 DOI: 10.4103/1673-5374.387970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 08/14/2023] [Indexed: 12/07/2023] Open
Abstract
ABSTRACT Non-invasive cerebral neuromodulation technologies are essential for the reorganization of cerebral neural networks, which have been widely applied in the field of central neurological diseases, such as stroke, Parkinson's disease, and mental disorders. Although significant advances have been made in neuromodulation technologies, the identification of optimal neurostimulation parameters including the cortical target, duration, and inhibition or excitation pattern is still limited due to the lack of guidance for neural circuits. Moreover, the neural mechanism underlying neuromodulation for improved behavioral performance remains poorly understood. Recently, advancements in neuroimaging have provided insight into neuromodulation techniques. Functional near-infrared spectroscopy, as a novel non-invasive optical brain imaging method, can detect brain activity by measuring cerebral hemodynamics with the advantages of portability, high motion tolerance, and anti-electromagnetic interference. Coupling functional near-infrared spectroscopy with neuromodulation technologies offers an opportunity to monitor the cortical response, provide real-time feedback, and establish a closed-loop strategy integrating evaluation, feedback, and intervention for neurostimulation, which provides a theoretical basis for development of individualized precise neurorehabilitation. We aimed to summarize the advantages of functional near-infrared spectroscopy and provide an overview of the current research on functional near-infrared spectroscopy in transcranial magnetic stimulation, transcranial electrical stimulation, neurofeedback, and brain-computer interfaces. Furthermore, the future perspectives and directions for the application of functional near-infrared spectroscopy in neuromodulation are summarized. In conclusion, functional near-infrared spectroscopy combined with neuromodulation may promote the optimization of central neural reorganization to achieve better functional recovery from central nervous system diseases.
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Affiliation(s)
- Congcong Huo
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, China
| | - Gongcheng Xu
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, China
| | - Hui Xie
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, China
| | - Tiandi Chen
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, China
| | - Guangjian Shao
- School of Mechatronic Engineering and Automation, Foshan University, Foshan, Guangdong Province, China
| | - Jue Wang
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, China
- Key Laboratory of Neuro-functional Information and Rehabilitation Engineering of the Ministry of Civil Affairs, Beijing, China
| | - Wenhao Li
- School of Rehabilitation Engineering, Beijing College of Social Administration, Beijing, China
| | - Daifa Wang
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Zengyong Li
- Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, National Research Center for Rehabilitation Technical Aids, Beijing, China
- Key Laboratory of Neuro-functional Information and Rehabilitation Engineering of the Ministry of Civil Affairs, Beijing, 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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Di Passa AM, Prokop-Millar S, Yaya H, Dabir M, McIntyre-Wood C, Fein A, MacKillop E, MacKillop J, Duarte D. Clinical efficacy of deep transcranial magnetic stimulation (dTMS) in psychiatric and cognitive disorders: A systematic review. J Psychiatr Res 2024; 175:287-315. [PMID: 38759496 DOI: 10.1016/j.jpsychires.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 04/23/2024] [Accepted: 05/02/2024] [Indexed: 05/19/2024]
Abstract
Deep transcranial magnetic stimulation (dTMS) has gained attention as an enhanced form of traditional TMS, targeting broader and deeper regions of the brain. However, a fulsome synthesis of dTMS efficacy across psychiatric and cognitive disorders using sham-controlled trials is lacking. We systematically reviewed 28 clinical trials comparing active dTMS to a sham/controlled condition to characterize dTMS efficacy across diverse psychiatric and cognitive disorders. A comprehensive search of APA PsycINFO, Cochrane, Embase, Medline, and PubMed databases was conducted. Predominant evidence supports dTMS efficacy in patients with obsessive-compulsive disorder (OCD; n = 2), substance use disorders (SUDs; n = 8), and in those experiencing depressive episodes with major depressive disorder (MDD) or bipolar disorder (BD; n = 6). However, the clinical efficacy of dTMS in psychiatric disorders characterized by hyperactivity or hyperarousal (i.e., attention-deficit/hyperactivity disorder, posttraumatic stress disorder, and schizophrenia) was heterogeneous. Common side effects included headaches and pain/discomfort, with rare but serious adverse events such as seizures and suicidal ideation/attempts. Risk of bias ratings indicated a collectively low risk according to the Grading of Recommendations, Assessment, Development, and Evaluations checklist (Meader et al., 2014). Literature suggests promise for dTMS as a beneficial alternative or add-on treatment for patients who do not respond well to traditional treatment, particularly for depressive episodes, OCD, and SUDs. Mixed evidence and limited clinical trials for other psychiatric and cognitive disorders suggest more extensive research is warranted. Future research should examine the durability of dTMS interventions and identify moderators of clinical efficacy.
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Affiliation(s)
- Anne-Marie Di Passa
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Shelby Prokop-Millar
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Horodjei Yaya
- Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Melissa Dabir
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Carly McIntyre-Wood
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada; Michael G DeGroote Centre for Medicinal Cannabis Research, McMaster University, Hamilton, ON, Canada
| | - Allan Fein
- Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada; Michael G DeGroote Centre for Medicinal Cannabis Research, McMaster University, Hamilton, ON, Canada
| | - Emily MacKillop
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - James MacKillop
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada; Michael G DeGroote Centre for Medicinal Cannabis Research, McMaster University, Hamilton, ON, Canada
| | - Dante Duarte
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton, Hamilton, ON, Canada; Seniors Mental Health Program, Department of Psychiatry and Neurosciences, McMaster University, Hamilton, ON, Canada.
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Browne CJ, Sheeba SR, Astill T, Baily A, Deblieck C, Mucci V, Cavaleri R. Assessing the synergistic effectiveness of intermittent theta burst stimulation and the vestibular ocular reflex rehabilitation protocol in the treatment of Mal de Debarquement Syndrome: a randomised controlled trial. J Neurol 2024; 271:2615-2630. [PMID: 38345630 PMCID: PMC11055743 DOI: 10.1007/s00415-024-12215-5] [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: 09/24/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 04/28/2024]
Abstract
INTRODUCTION Mal de Debarquement Syndrome (MdDS) is a rare central vestibular disorder characterised by a constant sensation of motion (rocking, swaying, bobbing), which typically arises after motion experiences (e.g. sea, air, and road travel), though can be triggered by non-motion events. The current standard of care is non-specific medications and interventions that only result in mild-to-moderate improvements. The vestibular ocular reflex (VOR) rehabilitation protocol, a specialised form of rehabilitation, has shown promising results in reducing symptoms amongst people with MdDS. Accumulating evidence suggests that it may be possible to augment the effects of VOR rehabilitation via non-invasive brain stimulation protocols, such as theta burst stimulation (TBS). METHODS The aim of this randomised controlled trial was to evaluate the effectiveness of intermittent TBS (iTBS) over the dorsolateral prefrontal cortex in enhancing the effectiveness of a subsequently delivered VOR rehabilitation protocol in people with MdDS. Participants were allocated randomly to receive either Sham (n = 10) or Active (n = 10) iTBS, followed by the VOR rehabilitation protocol. Subjective outcome measures (symptom ratings and mental health scores) were collected 1 week pre-treatment and for 16 weeks post-treatment. Posturography (objective outcome) was recorded each day of the treatment week. RESULTS Significant improvements in subjective and objective outcomes were reported across both treatment groups over time, but no between-group differences were observed. DISCUSSION These findings support the effectiveness of the VOR rehabilitation protocol in reducing MdDS symptoms. Further research into iTBS is required to elucidate whether the treatment has a role in the management of MdDS. TRN: ACTRN12619001519145 (Date registered: 04 November 2019).
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Affiliation(s)
- Cherylea J Browne
- School of Science, Western Sydney University, Sydney, NSW, Australia.
- Brain Stimulation and Rehabilitation (BrainStAR) Laboratory, Western Sydney University, Sydney, NSW, Australia.
- Translational Neuroscience Facility, School of Medical Sciences, UNSW Sydney, Sydney, NSW, Australia.
- Western Sydney University, Translational Health and Research Institute, Sydney, NSW, Australia.
| | - S R Sheeba
- School of Science, Western Sydney University, Sydney, NSW, Australia
- Brain Stimulation and Rehabilitation (BrainStAR) Laboratory, Western Sydney University, Sydney, NSW, Australia
| | - T Astill
- Brain Stimulation and Rehabilitation (BrainStAR) Laboratory, Western Sydney University, Sydney, NSW, Australia
- School of Health Sciences, Western Sydney University, Sydney, NSW, Australia
| | - A Baily
- School of Health Sciences, Western Sydney University, Sydney, NSW, Australia
| | - C Deblieck
- Laboratory of Equilibrium Investigations and Aerospace (LEIA), University of Antwerp, Antwerp, Belgium
| | - V Mucci
- School of Science, Western Sydney University, Sydney, NSW, Australia
| | - R Cavaleri
- Brain Stimulation and Rehabilitation (BrainStAR) Laboratory, Western Sydney University, Sydney, NSW, Australia
- Western Sydney University, Translational Health and Research Institute, Sydney, NSW, Australia
- School of Health Sciences, Western Sydney University, Sydney, NSW, Australia
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Fitzsimmons SMDD, Oostra E, Postma TS, van der Werf YD, van den Heuvel OA. Repetitive Transcranial Magnetic Stimulation-Induced Neuroplasticity and the Treatment of Psychiatric Disorders: State of the Evidence and Future Opportunities. Biol Psychiatry 2024; 95:592-600. [PMID: 38040046 DOI: 10.1016/j.biopsych.2023.11.016] [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: 05/31/2023] [Revised: 11/16/2023] [Accepted: 11/18/2023] [Indexed: 12/03/2023]
Abstract
Neuroplasticity, or activity-dependent neuronal change, is a crucial mechanism underlying the mechanisms of effect of many therapies for neuropsychiatric disorders, one of which is repetitive transcranial magnetic stimulation (rTMS). Understanding the neuroplastic effects of rTMS at different biological scales and on different timescales and how the effects at different scales interact with each other can help us understand the effects of rTMS in clinical populations and offers the potential to improve treatment outcomes. Several decades of research in the fields of neuroimaging and blood biomarkers is increasingly showing its clinical relevance, allowing measurement of the synaptic, functional, and structural changes involved in neuroplasticity in humans. In this narrative review, we describe the evidence for rTMS-induced neuroplasticity at multiple levels of the nervous system, with a focus on the treatment of psychiatric disorders. We also describe the relationship between neuroplasticity and clinical effects, discuss methods to optimize neuroplasticity, and identify future research opportunities in this area.
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Affiliation(s)
- Sophie M D D Fitzsimmons
- Department of Psychiatry, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Department of Anatomy and Neurosciences, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Neuroscience, Compulsivity Impulsivity and Attention Program, Amsterdam, the Netherlands.
| | - Eva Oostra
- Department of Psychiatry, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Department of Anatomy and Neurosciences, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Neuroscience, Mood, Anxiety, Psychosis, Sleep & Stress Program, Amsterdam, the Netherlands; GGZ inGeest Mental Health Care, Amsterdam, the Netherlands
| | - Tjardo S Postma
- Department of Psychiatry, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Department of Anatomy and Neurosciences, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Neuroscience, Compulsivity Impulsivity and Attention Program, Amsterdam, the Netherlands; GGZ inGeest Mental Health Care, Amsterdam, the Netherlands
| | - Ysbrand D van der Werf
- Department of Anatomy and Neurosciences, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Neuroscience, Compulsivity Impulsivity and Attention Program, Amsterdam, the Netherlands
| | - Odile A van den Heuvel
- Department of Psychiatry, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Department of Anatomy and Neurosciences, Amsterdam University Medical Centers, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Neuroscience, Compulsivity Impulsivity and Attention Program, Amsterdam, the Netherlands
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Ye H, Dima M, Hall V, Hendee J. Cellular mechanisms underlying carry-over effects after magnetic stimulation. Sci Rep 2024; 14:5167. [PMID: 38431662 PMCID: PMC10908793 DOI: 10.1038/s41598-024-55915-8] [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: 06/03/2023] [Accepted: 02/28/2024] [Indexed: 03/05/2024] Open
Abstract
Magnetic fields are widely used for neuromodulation in clinical settings. The intended effect of magnetic stimulation is that neural activity resumes its pre-stimulation state right after stimulation. Many theoretical and experimental works have focused on the cellular and molecular basis of the acute neural response to magnetic field. However, effects of magnetic stimulation can still last after the termination of the magnetic stimulation (named "carry-over effects"), which could generate profound effects to the outcome of the stimulation. However, the cellular and molecular mechanisms of carry-over effects are largely unknown, which renders the neural modulation practice using magnetic stimulation unpredictable. Here, we investigated carry-over effects at the cellular level, using the combination of micro-magnetic stimulation (µMS), electrophysiology, and computation modeling. We found that high frequency magnetic stimulation could lead to immediate neural inhibition in ganglion neurons from Aplysia californica, as well as persistent, carry-over inhibition after withdrawing the magnetic stimulus. Carry-over effects were found in the neurons that fired action potentials under a variety of conditions. The carry-over effects were also observed in the neurons when the magnetic field was applied across the ganglion sheath. The state of the neuron, specifically synaptic input and membrane potential fluctuation, plays a significant role in generating the carry-over effects after magnetic stimulation. To elucidate the cellular mechanisms of such carry-over effects under magnetic stimulation, we simulated a single neuron under magnetic stimulation with multi-compartment modeling. The model successfully replicated the carry-over effects in the neuron, and revealed that the carry-over effect was due to the dysfunction of the ion channel dynamics that were responsible for the initiation and sustaining of membrane excitability. A virtual voltage-clamp experiment revealed a compromised Na conductance and enhanced K conductance post magnetic stimulation, rendering the neurons incapable of generating action potentials and, therefore, leading to the carry over effects. Finally, both simulation and experimental results demonstrated that the carry-over effects could be controlled by disturbing the membrane potential during the post-stimulus inhibition period. Delineating the cellular and ion channel mechanisms underlying carry-over effects could provide insights to the clinical outcomes in brain stimulation using TMS and other modalities. This research incentivizes the development of novel neural engineering or pharmacological approaches to better control the carry-over effects for optimized clinical outcomes.
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Affiliation(s)
- Hui Ye
- Department of Biology, Loyola University Chicago, Quinlan Life Sciences Education and Research Center, 1032 W. Sheridan Rd., Chicago, IL, 60660, USA.
| | - Maria Dima
- Department of Biology, Loyola University Chicago, Quinlan Life Sciences Education and Research Center, 1032 W. Sheridan Rd., Chicago, IL, 60660, USA
| | - Vincent Hall
- Department of Biology, Loyola University Chicago, Quinlan Life Sciences Education and Research Center, 1032 W. Sheridan Rd., Chicago, IL, 60660, USA
| | - Jenna Hendee
- Department of Biology, Loyola University Chicago, Quinlan Life Sciences Education and Research Center, 1032 W. Sheridan Rd., Chicago, IL, 60660, USA
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Selim MK, Harel M, De Santis S, Perini I, Sommer WH, Heilig M, Zangen A, Canals S. Repetitive deep TMS in alcohol dependent patients halts progression of white matter changes in early abstinence. Psychiatry Clin Neurosci 2024; 78:176-185. [PMID: 38085120 DOI: 10.1111/pcn.13624] [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: 05/19/2023] [Revised: 10/04/2023] [Accepted: 11/15/2023] [Indexed: 03/13/2024]
Abstract
AIM Alcohol use disorder (AUD) is the most prevalent form of addiction, with a great burden on society and limited treatment options. A recent clinical trial reported significant clinical benefits of deep transcranial magnetic stimulations (Deep TMS) targeting midline frontocortical areas. However, the underlying biological substrate remained elusive. Here, we report the effect of Deep TMS on the microstructure of white matter. METHODS A total of 37 (14 females) AUD treatment-seeking patients were randomized to sham or active Deep TMS. Twenty (six females) age-matched healthy controls were included. White matter integrity was evaluated by fractional anisotropy (FA). Secondary measures included brain functional connectivity and self-reports of craving and drinking units in the 3 months of follow-up period. RESULTS White matter integrity was compromised in patients with AUD relative to healthy controls, as reflected by the widespread reduction in FA. This alteration progressed during early abstinence (3 weeks) in the absence of Deep TMS. However, stimulation of midline frontocortical areas arrested the progression of FA changes in association with decreased craving and relapse scores. Reconstruction of axonal tracts from white-matter regions showing preserved FA values identified cortical regions in the posterior cingulate and dorsomedial prefrontal cortices where functional connectivity was persistently modulated. These effects were absent in the sham-stimulated group. CONCLUSIONS By integrating brain structure and function to characterize the alcohol-dependent brain, this study provides mechanistic insights into the TMS effect, pointing to myelin plasticity as a possible mediator.
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Affiliation(s)
- Mohamed Kotb Selim
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Miguel Hernández (UMH), Sant Joan d'Alacant, Spain
| | - Maayan Harel
- Department of Life Sciences, Ben-Gurion University, Beer Sheva, Israel
- Zlotowski Center for Neuroscience, Ben-Gurion University, Beer Sheva, Israel
| | - Silvia De Santis
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Miguel Hernández (UMH), Sant Joan d'Alacant, Spain
| | - Irene Perini
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University Hospital, Linköping, Sweden
| | - Wolfgang H Sommer
- Department of Addiction Medicine, Department of Clinical Psychology, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Markus Heilig
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University Hospital, Linköping, Sweden
| | - Abraham Zangen
- Department of Life Sciences, Ben-Gurion University, Beer Sheva, Israel
- Zlotowski Center for Neuroscience, Ben-Gurion University, Beer Sheva, Israel
| | - Santiago Canals
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Miguel Hernández (UMH), Sant Joan d'Alacant, Spain
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Zhu Y, Huang H, Chen Z, Tao Y, Liao LY, Gao SH, Wang YJ, Gao CY. Intermittent Theta Burst Stimulation Attenuates Cognitive Deficits and Alzheimer's Disease-Type Pathologies via ISCA1-Mediated Mitochondrial Modulation in APP/PS1 Mice. Neurosci Bull 2024; 40:182-200. [PMID: 37578635 PMCID: PMC10838862 DOI: 10.1007/s12264-023-01098-7] [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: 01/19/2023] [Accepted: 04/28/2023] [Indexed: 08/15/2023] Open
Abstract
Intermittent theta burst stimulation (iTBS), a time-saving and cost-effective repetitive transcranial magnetic stimulation regime, has been shown to improve cognition in patients with Alzheimer's disease (AD). However, the specific mechanism underlying iTBS-induced cognitive enhancement remains unknown. Previous studies suggested that mitochondrial functions are modulated by magnetic stimulation. Here, we showed that iTBS upregulates the expression of iron-sulfur cluster assembly 1 (ISCA1, an essential regulatory factor for mitochondrial respiration) in the brain of APP/PS1 mice. In vivo and in vitro studies revealed that iTBS modulates mitochondrial iron-sulfur cluster assembly to facilitate mitochondrial respiration and function, which is required for ISCA1. Moreover, iTBS rescues cognitive decline and attenuates AD-type pathologies in APP/PS1 mice. The present study uncovers a novel mechanism by which iTBS modulates mitochondrial respiration and function via ISCA1-mediated iron-sulfur cluster assembly to alleviate cognitive impairments and pathologies in AD. We provide the mechanistic target of iTBS that warrants its therapeutic potential for AD patients.
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Affiliation(s)
- Yang Zhu
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Hao Huang
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Zhi Chen
- Department of Special Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Yong Tao
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Ling-Yi Liao
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Shi-Hao Gao
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China.
| | - Yan-Jiang Wang
- Department of Neurology and Center for Clinical Neuroscience, Daping Hospital, Army Medical University, Chongqing, 400042, China.
| | - Chang-Yue Gao
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China.
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10
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Galimberti A, Tik M, Pellegrino G, Schuler AL. Effectiveness of rTMS and tDCS treatment for chronic TBI symptoms: A systematic review and meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry 2024; 128:110863. [PMID: 37709126 DOI: 10.1016/j.pnpbp.2023.110863] [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: 04/06/2023] [Revised: 08/18/2023] [Accepted: 09/09/2023] [Indexed: 09/16/2023]
Abstract
INTRODUCTION Traumatic brain injury (TBI) is a major cause of long-term disability with conventional treatments frequently falling short to restore a good quality-of-life. Non-invasive brain stimulation (NIBS) techniques have shown potential as therapeutic options for neuropsychiatric conditions, including TBI sequelae. This study aims at providing a systematic review and meta-analysis on the effectiveness of repetitive transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) on post-TBI symptoms. METHODS Fifteen randomized controlled trials (RCTs) on adult TBI patients that examined the effects of multiple treatment sessions of NIBS techniques were selected from five databases. Symptoms were clustered into four categories: depression, anxiety, headache and cognitive dysfunctions. Meta-analysis was performed using correlated and hierarchical effects models. RESULTS There were only few and heterogeneous studies with generally small sample sizes. Most studies targeted the dorsolateral prefrontal cortex (dlPFC). Overall, the effects of NIBS were small. However, there was a significant effect for overall symptoms (0.404, p = 0.031). Moreover, subgroup analyses revealed significant overall effects for anxiety (0.195, p = 0.020) and headache (0.354, p = 0.040). CONCLUSIONS To date, there is limited evidence supporting the effectiveness of NIBS concerning treatment for TBI sequelae. The observed effect sizes were modest, suggesting subtle improvements rather than drastic changes. While NIBS techniques remain promising for treating neuropsychiatric conditions, larger RCT studies with longer follow-ups, optimized stimulation parameters and standardized methodology are required to establish their efficacy in addressing TBI sequelae.
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Affiliation(s)
| | - Martin Tik
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA; Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Giovanni Pellegrino
- Epilepsy Program, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Anna-Lisa Schuler
- Lise Meitner Research Group Cognition and Plasticity, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; IRCCS San Camillo Hospital, Venice, Italy.
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11
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Zhu L, Pei Z, Dang G, Shi X, Su X, Lan X, Lian C, Yan N, Guo Y. Predicting response to repetitive transcranial magnetic stimulation in patients with chronic insomnia disorder using electroencephalography: A pilot study. Brain Res Bull 2024; 206:110851. [PMID: 38141788 DOI: 10.1016/j.brainresbull.2023.110851] [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: 08/07/2023] [Revised: 11/30/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Predicting responsvienss to repetitive transcranial magnetic stimulation (rTMS) can facilitate personalized treatments with improved efficacy; however, predictive features related to this response are still lacking. We explored whether resting-state electroencephalography (rsEEG) functional connectivity measured at baseline or during treatment could predict the response to 10-day rTMS targeted to the right dorsolateral prefrontal cortex (DLPFC) in 36 patients with chronic insomnia disorder (CID). Pre- and post-treatment rsEEG scans and the Pittsburgh Sleep Quality Index (PSQI) were evaluated, with an additional rsEEG scan conducted after four rTMS sessions. Machine-learning approaches were employed to assess the ability of each connectivity measure to distinguish between responders (PSQI improvement > 25%) and non-responders (PSQI improvement ≤ 25%). Furthermore, we analyzed the connectivity trends of the two subgroups throughout the treatment. Our results revealed that the machine learning model based on baseline theta connectivity achieved the highest accuracy (AUC = 0.843) in predicting treatment response. Decreased baseline connectivity at the stimulated site was associated with higher responsiveness to TMS, emphasizing the significance of functional connectivity characteristics in rTMS treatment. These findings enhance the clinical application of EEG functional connectivity markers in predicting treatment outcomes.
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Affiliation(s)
- Lin Zhu
- Department of Neurology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Zian Pei
- Shenzhen Bay Laboratory, Shenzhen 518020, Guangdong, China
| | - Ge Dang
- Department of Neurology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xue Shi
- Department of Neurology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xiaolin Su
- Department of Neurology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xiaoyong Lan
- Shenzhen Bay Laboratory, Shenzhen 518020, Guangdong, China
| | - Chongyuan Lian
- Shenzhen Bay Laboratory, Shenzhen 518020, Guangdong, China
| | - Nan Yan
- CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yi Guo
- Department of Neurology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China; Shenzhen Bay Laboratory, Shenzhen 518020, Guangdong, China.
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12
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Zhang DW, Johnstone SJ, Sauce B, Arns M, Sun L, Jiang H. Remote neurocognitive interventions for attention-deficit/hyperactivity disorder - Opportunities and challenges. Prog Neuropsychopharmacol Biol Psychiatry 2023; 127:110802. [PMID: 37257770 DOI: 10.1016/j.pnpbp.2023.110802] [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: 11/04/2022] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
Improving neurocognitive functions through remote interventions has been a promising approach to developing new treatments for attention-deficit/hyperactivity disorder (AD/HD). Remote neurocognitive interventions may address the shortcomings of the current prevailing pharmacological therapies for AD/HD, e.g., side effects and access barriers. Here we review the current options for remote neurocognitive interventions to reduce AD/HD symptoms, including cognitive training, EEG neurofeedback training, transcranial electrical stimulation, and external cranial nerve stimulation. We begin with an overview of the neurocognitive deficits in AD/HD to identify the targets for developing interventions. The role of neuroplasticity in each intervention is then highlighted due to its essential role in facilitating neuropsychological adaptations. Following this, each intervention type is discussed in terms of the critical details of the intervention protocols, the role of neuroplasticity, and the available evidence. Finally, we offer suggestions for future directions in terms of optimizing the existing intervention protocols and developing novel protocols.
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Affiliation(s)
- Da-Wei Zhang
- Department of Psychology/Center for Place-Based Education, Yangzhou University, Yangzhou, China; Department of Psychology, Monash University Malaysia, Bandar Sunway, Malaysia.
| | - Stuart J Johnstone
- School of Psychology, University of Wollongong, Wollongong, Australia; Brain & Behaviour Research Institute, University of Wollongong, Australia
| | - Bruno Sauce
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Martijn Arns
- Research Institute Brainclinics, Brainclinics Foundation, Nijmegen, Netherlands; Department of Experimental Psychology, Utrecht University, Utrecht, Netherlands; NeuroCare Group, Nijmegen, Netherlands
| | - Li Sun
- Peking University Sixth Hospital/Institute of Mental Health, Beijing, China; National Clinical Research Center for Mental Disorders, Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China
| | - Han Jiang
- College of Special Education, Zhejiang Normal University, Hangzhou, China
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13
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Wei Y, Ye S, Jiang H, Chen Y, Qiu Y, Zhang L, Ma R, Gao Q. Effects of non-invasive brain stimulation over supplementary motor area in people with Parkinson's disease: a protocol for a systematic review and meta-analysis of randomised controlled trials. BMJ Open 2023; 13:e076948. [PMID: 38070907 PMCID: PMC10729189 DOI: 10.1136/bmjopen-2023-076948] [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: 06/21/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
INTRODUCTION Individuals with Parkinson's disease (PD) often experience initial hesitation, slowness of movements, decreased balance and impaired standing ability, which can significantly impact their independence. Transcranial magnetic stimulation and transcranial direct current stimulation are two widely used and promising non-invasive brain stimulation (NIBS) modalities for treating PD. The supplementary motor area (SMA), associated with motor behaviour and processing, has received increasing attention as a potential stimulation target to alleviate PD-related symptoms. However, the data on NIBS over SMA in PD individuals are inconsistent and has not been synthesised. In this article, we will review the evidence for NIBS over SMA in PD individuals and evaluate its efficacy in improving PD function. METHOD AND ANALYSIS Randomised controlled clinical trials comparing the effects of NIBS and sham stimulation on motor function, activities of daily living and participation for people with PD will be included. A detailed computer-aided search of the literature will be performed from inception to February 2023 in the following databases: PubMed, EMBASE, Physiotherapy Evidence Database (PEDro), Web of Science (WOS) and The Chinese National Knowledge Infrastructure (CNKI). Two independent reviewers will screen articles for relevance and methodological validity. The PEDro scale will be used to evaluate the risk of bias of selected studies. Data from included studies will be extracted by two independent reviewers through a customised, preset data extraction sheet. ETHICS AND DISSEMINATION Ethical approval is not required for this systematic review. The study's findings will be presented at scientific meetings and published in peer-reviewed journals. PROSPERO REGISTRATION NUMBER CRD42023399945.
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Affiliation(s)
- Yixin Wei
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Saiqing Ye
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hanhong Jiang
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yawen Chen
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China
| | - Yitong Qiu
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Li Zhang
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Runting Ma
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Qiang Gao
- Department of Rehabilitation Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital of Sichuan University, Chengdu, Sichuan, China
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14
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Prei K, Kanig C, Osnabruegge M, Langguth B, Mack W, Abdelnaim M, Schecklmann M, Schoisswohl S. Limited evidence for reliability of low and high frequency rTMS over the motor cortex. Brain Res 2023; 1820:148534. [PMID: 37586677 DOI: 10.1016/j.brainres.2023.148534] [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: 06/01/2023] [Revised: 08/07/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the reliability of low-frequency and high-frequency repetitive transcranial magnetic stimulation (rTMS) on healthy individuals over the motor cortex. A secondary outcome was the assessment if low-frequency rTMS results in inhibition and high-frequency rTMS results in facilitation. METHODS In this experiment, 30 healthy participants received on four consecutive days one session each with application of 1 Hz or 20 Hz rTMS over the left motor cortex. 1 Hz and 20 Hz were applied in alternating order, whereby the starting frequency was randomized. Motor evoked potentials (MEPs) were measured before and after each session. Reliability measures were intraclass and Pearson's correlation coefficient (ICC and r). RESULTS ICCs and r values were low to moderate. Notably, within subgroups of less confounded measures, we found good r values for 20 Hz rTMS. The group-level analysis did not demonstrate a clear low-frequency inhibition and high-frequency facilitation pattern. At the single-subject level, only one participant exhibited significant changes consistent with the expected pattern, with concurrent decreases in MEPs following 1 Hz sessions and increases following 20 Hz sessions. CONCLUSION The investigated neuromodulatory protocols show low to moderate reliability. Results are questioning the low-frequency inhibition and high-frequency facilitation pattern. SIGNIFICANCE Methodological improvements for the usage of rTMS are necessary to increase validity and reliability of non-invasive brain stimulation.
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Affiliation(s)
- Kilian Prei
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany
| | - Carolina Kanig
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany; Department of Human Sciences, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany.
| | - Mirja Osnabruegge
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany; Department of Human Sciences, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
| | - Berthold Langguth
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany
| | - Wolfgang Mack
- Department of Human Sciences, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
| | - Mohamed Abdelnaim
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany
| | - Martin Schecklmann
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany
| | - Stefan Schoisswohl
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany; Department of Human Sciences, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
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15
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Kolasa M, Faron-Górecka A. Preclinical models of treatment-resistant depression: challenges and perspectives. Pharmacol Rep 2023; 75:1326-1340. [PMID: 37882914 PMCID: PMC10661811 DOI: 10.1007/s43440-023-00542-9] [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: 08/29/2023] [Revised: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 10/27/2023]
Abstract
Treatment-resistant depression (TRD) is a subgroup of major depressive disorder in which the use of classical antidepressant treatments fails to achieve satisfactory treatment results. Although there are various definitions and grading models for TRD, common criteria for assessing TRD have still not been established. However, a common feature of any TRD model is the lack of response to at least two attempts at antidepressant pharmacotherapy. The causes of TRD are not known; nevertheless, it is estimated that even 60% of TRD patients are so-called pseudo-TRD patients, in which multiple biological factors, e.g., gender, age, and hormonal disturbances are concomitant with depression and involved in antidepressant drug resistance. Whereas the phenomenon of TRD is a complex disorder difficult to diagnose and successfully treat, the search for new treatment strategies is a significant challenge of modern pharmacology. It seems that despite the complexity of the TRD phenomenon, some useful animal models of TRD meet the construct, the face, and the predictive validity criteria. Based on the literature and our own experiences, we will discuss the utility of animals exposed to the stress paradigm (chronic mild stress, CMS), and the Wistar Kyoto rat strain representing an endogenous model of TRD. In this review, we will focus on reviewing research on existing and novel therapies for TRD, including ketamine, deep brain stimulation (DBS), and psychedelic drugs in the context of preclinical studies in representative animal models of TRD.
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Affiliation(s)
- Magdalena Kolasa
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343, Kraków, Poland
| | - Agata Faron-Górecka
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343, Kraków, Poland.
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16
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Ortega-Robles E, Cantillo-Negrete J, Carino-Escobar RI, Arias-Carrión O. Methodological approach for assessing motor cortical excitability changes with single-pulse transcranial magnetic stimulation. MethodsX 2023; 11:102451. [PMID: 38023316 PMCID: PMC10630640 DOI: 10.1016/j.mex.2023.102451] [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: 09/28/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Transcranial Magnetic Stimulation (TMS) serves as a crucial tool in evaluating motor cortex excitability by applying short magnetic pulses to the skull, inducing neuron depolarization in the cerebral cortex through electromagnetic induction. This technique leads to the activation of specific skeletal muscles recorded as Motor-Evoked Potentials (MEPs) through electromyography. Although various methodologies assess cortical excitability with TMS, measuring MEP amplitudes offers a straightforward approach, especially when comparing excitability states pre- and post-interventions designed to alter cortical excitability. Despite TMS's widespread use, the absence of a standardized procedure for such measurements in existing literature hinders the comparison of results across different studies. This paper proposes a standardized procedure for assessing changes in motor cortical excitability using single-pulse TMS pre- and post-intervention. The recommended approach utilizes an intensity equating to half of the MEP's maximum amplitude, thereby ensuring equal likelihood of amplitude increase or decrease, providing a consistent basis for future studies and facilitating meaningful comparisons of results.•A method for assessing changes in motor cortical excitability using single-pulse TMS before and after a specified intervention.•We recommend using an intensity equal to half of the MEP's maximum amplitude during evaluations to objectively assess motor cortical excitability changes post-intervention.
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Affiliation(s)
- Emmanuel Ortega-Robles
- Unidad de Trastornos del Movimiento y Sueño, Hospital General Dr. Manuel Gea González, Mexico City 14080, Mexico
| | - Jessica Cantillo-Negrete
- División de Investigación en Neurociencias Clínica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
| | - Ruben I. Carino-Escobar
- División de Investigación en Neurociencias Clínica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
| | - Oscar Arias-Carrión
- Unidad de Trastornos del Movimiento y Sueño, Hospital General Dr. Manuel Gea González, Mexico City 14080, Mexico
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17
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Murphy OW, Hoy KE, Wong D, Bailey NW, Fitzgerald PB, Segrave RA. Effects of transcranial direct current stimulation and transcranial random noise stimulation on working memory and task-related EEG in major depressive disorder. Brain Cogn 2023; 173:106105. [PMID: 37963422 DOI: 10.1016/j.bandc.2023.106105] [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: 06/19/2023] [Revised: 09/25/2023] [Accepted: 10/31/2023] [Indexed: 11/16/2023]
Abstract
OBJECTIVE To compare effects of transcranial direct current stimulation (tDCS) and transcranial random noise stimulation with a direct-current offset (tRNS + DC-offset) on working memory (WM) performance and task-related electroencephalography (EEG) in individuals with Major Depressive Disorder (MDD). METHODS Using a sham-controlled, parallel-groups design, 49 participants with MDD received either anodal tDCS (N = 16), high-frequency tRNS + DC-offset (N = 16), or sham stimulation (N = 17) to the left dorsolateral prefrontal cortex (DLPFC) for 20-minutes. The Sternberg WM task was completed with concurrent EEG recording before and at 5- and 25-minutes post-stimulation. Event-related synchronisation/desynchronisation (ERS/ERD) was calculated for theta, upper alpha, and gamma oscillations during WM encoding and maintenance. RESULTS tDCS significantly increased parieto-occipital upper alpha ERS/ERD during WM maintenance, observed on EEG recorded 5- and 25-minutes post-stimulation. tRNS + DC-offset did not significantly alter WM-related oscillatory activity when compared to sham stimulation. Neither tDCS nor tRNS + DC-offset improved WM performance to a significantly greater degree than sham stimulation. CONCLUSIONS Although tDCS induced persistent effects on WM-related oscillatory activity, neither tDCS nor tRNS + DC-offset enhanced WM performance in MDD. SIGNIFICANCE This reflects the first sham-controlled comparison of tDCS and tRNS + DC-offset in MDD. These findings directly contrast with evidence of tRNS-induced enhancements in WM in healthy individuals.
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Affiliation(s)
- O W Murphy
- Central Clinical School, Monash University, Clayton, VIC, Australia; Bionics Institute, East Melbourne, VIC, Australia.
| | - K E Hoy
- Central Clinical School, Monash University, Clayton, VIC, Australia; Bionics Institute, East Melbourne, VIC, Australia
| | - D Wong
- School of Psychology and Public Health, La Trobe University, Bundoora, VIC, Australia
| | - N W Bailey
- Central Clinical School, Monash University, Clayton, VIC, Australia; Monarch Research Institute Monarch Mental Health Group, Sydney, NSW, Australia; School of Medicine and Psychology, Australian National University, Canberra, ACT, Australia
| | - P B Fitzgerald
- Monarch Research Institute Monarch Mental Health Group, Sydney, NSW, Australia; School of Medicine and Psychology, Australian National University, Canberra, ACT, Australia
| | - R A Segrave
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
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18
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Dufor T, Lohof AM, Sherrard RM. Magnetic Stimulation as a Therapeutic Approach for Brain Modulation and Repair: Underlying Molecular and Cellular Mechanisms. Int J Mol Sci 2023; 24:16456. [PMID: 38003643 PMCID: PMC10671429 DOI: 10.3390/ijms242216456] [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: 10/12/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
Neurological and psychiatric diseases generally have no cure, so innovative non-pharmacological treatments, including non-invasive brain stimulation, are interesting therapeutic tools as they aim to trigger intrinsic neural repair mechanisms. A common brain stimulation technique involves the application of pulsed magnetic fields to affected brain regions. However, investigations of magnetic brain stimulation are complicated by the use of many different stimulation parameters. Magnetic brain stimulation is usually divided into two poorly connected approaches: (1) clinically used high-intensity stimulation (0.5-2 Tesla, T) and (2) experimental or epidemiologically studied low-intensity stimulation (μT-mT). Human tests of both approaches are reported to have beneficial outcomes, but the underlying biology is unclear, and thus optimal stimulation parameters remain ill defined. Here, we aim to bring together what is known about the biology of magnetic brain stimulation from human, animal, and in vitro studies. We identify the common effects of different stimulation protocols; show how different types of pulsed magnetic fields interact with nervous tissue; and describe cellular mechanisms underlying their effects-from intracellular signalling cascades, through synaptic plasticity and the modulation of network activity, to long-term structural changes in neural circuits. Recent advances in magneto-biology show clear mechanisms that may explain low-intensity stimulation effects in the brain. With its large breadth of stimulation parameters, not available to high-intensity stimulation, low-intensity focal magnetic stimulation becomes a potentially powerful treatment tool for human application.
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Affiliation(s)
- Tom Dufor
- Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK
| | - Ann M. Lohof
- Sorbonne Université and CNRS, UMR8256 Biological Adaptation and Ageing, 75005 Paris, France;
| | - Rachel M. Sherrard
- Sorbonne Université and CNRS, UMR8256 Biological Adaptation and Ageing, 75005 Paris, France;
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Szücs-Bencze L, Vékony T, Pesthy O, Szabó N, Kincses TZ, Turi Z, Nemeth D. Modulating Visuomotor Sequence Learning by Repetitive Transcranial Magnetic Stimulation: What Do We Know So Far? J Intell 2023; 11:201. [PMID: 37888433 PMCID: PMC10607545 DOI: 10.3390/jintelligence11100201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/23/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
Predictive processes and numerous cognitive, motor, and social skills depend heavily on sequence learning. The visuomotor Serial Reaction Time Task (SRTT) can measure this fundamental cognitive process. To comprehend the neural underpinnings of the SRTT, non-invasive brain stimulation stands out as one of the most effective methodologies. Nevertheless, a systematic list of considerations for the design of such interventional studies is currently lacking. To address this gap, this review aimed to investigate whether repetitive transcranial magnetic stimulation (rTMS) is a viable method of modulating visuomotor sequence learning and to identify the factors that mediate its efficacy. We systematically analyzed the eligible records (n = 17) that attempted to modulate the performance of the SRTT with rTMS. The purpose of the analysis was to determine how the following factors affected SRTT performance: (1) stimulated brain regions, (2) rTMS protocols, (3) stimulated hemisphere, (4) timing of the stimulation, (5) SRTT sequence properties, and (6) other methodological features. The primary motor cortex (M1) and the dorsolateral prefrontal cortex (DLPFC) were found to be the most promising stimulation targets. Low-frequency protocols over M1 usually weaken performance, but the results are less consistent for the DLPFC. This review provides a comprehensive discussion about the behavioral effects of six factors that are crucial in designing future studies to modulate sequence learning with rTMS. Future studies may preferentially and synergistically combine functional neuroimaging with rTMS to adequately link the rTMS-induced network effects with behavioral findings, which are crucial to develop a unified cognitive model of visuomotor sequence learning.
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Affiliation(s)
- Laura Szücs-Bencze
- Department of Neurology, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary
| | - Teodóra Vékony
- Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, INSERM, CNRS, Université Claude Bernard Lyon 1, 95 Boulevard Pinel, F-69500 Bron, France
| | - Orsolya Pesthy
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Izabella utca 46, H-1064 Budapest, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd Universiry, Izabella utca 46, H-1064 Budapest, Hungary
| | - Nikoletta Szabó
- Department of Neurology, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary
| | - Tamás Zsigmond Kincses
- Department of Neurology, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary
- Department of Radiology, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary
| | - Zsolt Turi
- Department of Neuroanatomy, Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Albertstrasse 17, D-79104 Freiburg, Germany
| | - Dezso Nemeth
- Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, INSERM, CNRS, Université Claude Bernard Lyon 1, 95 Boulevard Pinel, F-69500 Bron, France
- BML-NAP Research Group, Institute of Psychology & Institute of Cognitive Neuroscience and Psychology, ELTE Eötvös Loránd University & Research Centre for Natural Sciences, Damjanich utca 41, H-1072 Budapest, Hungary
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Huang H, Cheng S, Yang X, Liu L, Cheng B, Meng P, Pan C, Wen Y, Jia Y, Liu H, Zhang F. Dissecting the Association between Gut Microbiota and Brain Structure Change Rate: A Two-Sample Bidirectional Mendelian Randomization Study. Nutrients 2023; 15:4227. [PMID: 37836511 PMCID: PMC10574136 DOI: 10.3390/nu15194227] [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: 08/30/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
The connection between the gut microbiota and brain structure changes is still unclear. We conducted a Mendelian randomization (MR) study to examine the bidirectional causality between the gut microbiota (211 taxa, including 131 genera, 35 families, 20 orders, 16 classes and 9 phyla; N = 18,340 individuals) and age-independent/dependent longitudinal changes in brain structure across the lifespan (N = 15,640 individuals aged 4~99 years). We identified causal associations between the gut microbiota and age-independent/dependent longitudinal changes in brain structure, such as family Peptostreptococcaceae with age-independent longitudinal changes of cortical gray matter (GM) volume and genus Faecalibacterium with age-independent average cortical thickness and cortical GM volume. Taking age-independent longitudinal changes in brain structure across the lifespan as exposures, there were causal relationships between the surface area and genus Lachnospiraceae. Our findings may serve as fundamentals for further research on the genetic mechanisms and biological treatment of complex traits and diseases associated with the gut microbiota and the brain structure change rate.
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Affiliation(s)
- Huimei Huang
- Department of Nephrology, Xi’an Children’s Hospital, The Affiliated Children’s Hospital of Xi’an Jiaotong University, Xi’an 710003, China
| | - Shiqiang Cheng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Xuena Yang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Li Liu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Bolun Cheng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Peilin Meng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Chuyu Pan
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Yan Wen
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Yumeng Jia
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Huan Liu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China; (S.C.); (X.Y.); (L.L.); (B.C.); (P.M.); (C.P.); (Y.W.); (Y.J.); (H.L.)
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Sharbafshaaer M, Gigi I, Lavorgna L, Esposito S, Bonavita S, Tedeschi G, Esposito F, Trojsi F. Repetitive Transcranial Magnetic Stimulation (rTMS) in Mild Cognitive Impairment: Effects on Cognitive Functions-A Systematic Review. J Clin Med 2023; 12:6190. [PMID: 37834834 PMCID: PMC10573645 DOI: 10.3390/jcm12196190] [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: 07/12/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive brain stimulation technique also used as a non-pharmacological intervention against cognitive impairment. The purpose of the present review was to summarize what is currently known about the effectiveness of rTMS intervention on different cognitive domains in patients with mild cognitive impairment (MCI) and to address potential neuromodulation approaches in combination with electroencephalography (EEG) and neuroimaging, especially functional magnetic resonance imaging (fMRI). In this systematic review, we consulted three main databases (PubMed, Science Direct, and Scopus), and Google Scholar was selected for the gray literature search. The PRISMA flowchart drove the studies' inclusion. The selection process ensured that only high-quality studies were included; after removing duplicate papers, explicit ratings were given based on the quality classification as high (A), moderate (B), or low (C), considering factors such as risks of bias, inaccuracies, inconsistencies, lack of direction, and publication bias. Seven full-text articles fulfilled the stated inclusion, reporting five double-blind, randomized, sham-controlled studies, a case study, and a randomized crossover trial. The results of the reviewed studies suggested that rTMS in MCI patients is safe and effective for enhancing cognitive functions, thus making it a potential therapeutic approach for MCI patients. Changes in functional connectivity within the default mode network (DMN) after targeted rTMS could represent a valuable indicator of treatment response. Finally, high-frequency rTMS over the dorsolateral prefrontal cortex (DLPFC) has been shown to significantly enhance cognitive functions, such as executive performance, together with the increase of functional connectivity within frontoparietal networks. The main limitations were the number of included studies and the exclusion of studies using intermittent theta-burst stimulation, used in studies on Alzheimer's disease. Therefore, neuroimaging techniques in combination with rTMS have been shown to be useful for future network-based, fMRI-guided therapeutic approaches.
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Affiliation(s)
- Minoo Sharbafshaaer
- MRI Research Center, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.S.); (I.G.); (S.B.); (G.T.); (F.E.); (F.T.)
| | - Ilaria Gigi
- MRI Research Center, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.S.); (I.G.); (S.B.); (G.T.); (F.E.); (F.T.)
| | - Luigi Lavorgna
- First Division of Neurology, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Sabrina Esposito
- First Division of Neurology, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Simona Bonavita
- MRI Research Center, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.S.); (I.G.); (S.B.); (G.T.); (F.E.); (F.T.)
- First Division of Neurology, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Gioacchino Tedeschi
- MRI Research Center, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.S.); (I.G.); (S.B.); (G.T.); (F.E.); (F.T.)
- First Division of Neurology, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Fabrizio Esposito
- MRI Research Center, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.S.); (I.G.); (S.B.); (G.T.); (F.E.); (F.T.)
| | - Francesca Trojsi
- MRI Research Center, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.S.); (I.G.); (S.B.); (G.T.); (F.E.); (F.T.)
- First Division of Neurology, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
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Cheng I, Sasegbon A, Hamdy S. Evaluating the Therapeutic Application of Neuromodulation in the Human Swallowing System. Dysphagia 2023; 38:1005-1024. [PMID: 36239821 PMCID: PMC10326109 DOI: 10.1007/s00455-022-10528-z] [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: 06/07/2022] [Accepted: 09/30/2022] [Indexed: 11/03/2022]
Abstract
In the last two decades, the focus of neurogenic dysphagia management has moved from passive compensatory strategies to evidence-based rehabilitative approaches. Advances in technology have enabled the development of novel treatment approaches such as neuromodulation techniques, which target the promotion of neurological reorganization for functional recovery of swallowing. Given the rapid pace of development in the field, this review aims to summarize the current findings on the effects of neuromodulation techniques on the human swallowing system and evaluate their therapeutic potential for neurogenic dysphagia. Implications for future clinical research and practical considerations for using neuromodulation in clinical practice will also be discussed.
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Affiliation(s)
- Ivy Cheng
- Centre for Gastrointestinal Sciences, Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Ayodele Sasegbon
- Centre for Gastrointestinal Sciences, Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Shaheen Hamdy
- Centre for Gastrointestinal Sciences, Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
- Centre for Gastrointestinal Sciences, University of Manchester, Clinical Sciences Building, Salford Royal Foundation Trust, Eccles Old Road, Salford, M6 8HD, UK.
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Qiu Y, Yin Z, Wang M, Duan A, Xie M, Wu J, Wang Z, Chen G. Motor function improvement and acceptability of non-invasive brain stimulation in patients with Parkinson's disease: a Bayesian network analysis. Front Neurosci 2023; 17:1212640. [PMID: 37564368 PMCID: PMC10410144 DOI: 10.3389/fnins.2023.1212640] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/11/2023] [Indexed: 08/12/2023] Open
Abstract
Background Parkinson's disease (PD) is a neurodegenerative disorder defined by progressive motor and non-motor symptoms. Currently, the pro-cognitive effects of transcranial direct current stimulation (tDCS) and repetitive transcranial magnetic stimulation (rTMS) are well-supported in previous literatures. However, controversy surrounding the optimal therapeutic target for motor symptom improvement remains. Objective This network meta-analysis (NMA) was conducted to comprehensively evaluate the optimal strategy to use rTMS and tDCS to improve motor symptoms in PD. Methods We searched PubMed, Embase, and Cochrane electronic databases for eligible randomized controlled studies (RCTs). The primary outcome was the changes of Unified Parkinson's Disease Rating Scale (UPDRS) part III score, the secondary outcomes were Time Up and Go Test (TUGT) time, and Freezing of Gait Questionnaire (FOGQ) score. The safety outcome was indicated by device-related adverse events (AEs). Result We enrolled 28 studies that investigated various strategies, including high-frequency rTMS (HFrTMS), low-frequency rTMS (LFrTMS), anodal tDCS (AtDCS), AtDCS_ cathode tDCS (CtDCS), HFrTMS_LFrTMS, and Sham control groups. Both HFrTMS (short-term: mean difference (MD) -5.21, 95% credible interval (CrI) -9.26 to -1.23, long-term: MD -4.74, 95% CrI -6.45 to -3.05), and LFrTMS (long-term: MD -4.83, 95% CrI -6.42 to -3.26) were effective in improving UPDRS-III score compared with Sham stimulation. For TUGT time, HFrTMS (short-term: MD -2.04, 95% CrI -3.26 to -0.8, long-term: MD -2.66, 95% CrI -3.55 to -1.77), and AtDCS (short-term: MD -0.8, 95% CrI -1.26 to -0.34, long-term: MD -0.69, 95% CrI -1.31 to -0.08) produced a significant difference compared to Sham stimulation. However, no statistical difference was found in FOGQ score among the various groups. According to the surface under curve ranking area, HFrTMS ranked first in short-term UPDRS-III score (0.77), short-term (0.82), and long-term (0.84) TUGT time, and short-term FOGQ score (0.73). With respect to the safety outcomes, all strategies indicated few and self-limiting AEs. Conclusion HFrTMS may be the optimal non-invasive brain stimulation (NIBS) intervention to improve motor function in patients with PD while NIBS has generally been well tolerated. However, further studies focusing on the clinical outcomes resulting from the different combined schedules of tDCS and rTMS are required. Systematic review registration https://inplasy.com/inplasy-2023-4-0087/, identifier: 202340087.
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Affiliation(s)
- Youjia Qiu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ziqian Yin
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Menghan Wang
- Suzhou Medical College of Soochow University, Suzhou, China
| | - Aojie Duan
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Minjia Xie
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jiang Wu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
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Yang FA, Lin CL, Cho SY, Chou IL, Han TI, Yang PY. Short- and Long-Term Effects of Repetitive Transcranial Magnetic Stimulation on Poststroke Visuospatial Neglect: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Am J Phys Med Rehabil 2023; 102:522-532. [PMID: 36730575 DOI: 10.1097/phm.0000000000002151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE This systematic review and meta-analysis aimed to assess the effects of repetitive transcranial magnetic stimulation and select a suitable protocol for poststroke visuospatial neglect. DESIGN PubMed, Cochrane Library, and Embase databases were searched for relevant studies from the inception date to October 31, 2021. The inclusion criteria were (1) randomized controlled trials, (2) people with visuospatial neglect, (3) treatment with different repetitive transcranial magnetic stimulation protocols, (4) comparison with sham or blank control, and (5) reports of performance measurements. RESULTS Data were obtained from 11 randomized controlled trials. The effects of immediate and 1-mo postintervention were measured using line bisection test, cancellation test, and Catherine Bergego Scale. Results showed statistically significant improvement when applying low-frequency (0.5-1 Hz) repetitive transcranial magnetic stimulation or continuous theta burst stimulation to the left hemisphere on short- and long-term line bisection test (standardized mean difference = -1.10, 95% confidence interval = -1.84 to -0.37; standardized mean difference = -1.25, 95% confidence interval = -2.11 to -0.39) and cancellation test (standardized mean difference = 1.08, 95% confidence interval = 0.45 to 1.71; standardized mean difference = 1.45, 95% confidence interval = 0.42, 2.47). CONCLUSIONS Repetitive transcranial magnetic stimulation may be considered a treatment option for poststroke visuospatial neglect. This review proves that a decrease in neuronal excitation in the left hemisphere, which restores the interhemispheric balance, benefits poststroke visuospatial neglect.
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Affiliation(s)
- Fu-An Yang
- From the China Medical University Hospital, Taichung, Taiwan (F-AY); Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan (C-LL, S-YC, T-IH, P-YY); and School of Medicine, China Medical University Hospital, Taichung, Taiwan (I-LC, P-YY)
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Dong L, Chen WC, Su H, Wang ML, Du C, Jiang XR, Mei SF, Chen SJ, Liu XJ, Liu XB. Intermittent theta burst stimulation to the left dorsolateral prefrontal cortex improves cognitive function in polydrug use disorder patients: a randomized controlled trial. Front Psychiatry 2023; 14:1156149. [PMID: 37304431 PMCID: PMC10248467 DOI: 10.3389/fpsyt.2023.1156149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/10/2023] [Indexed: 06/13/2023] Open
Abstract
Background Polydrug abuse is common among opioid users. Individuals who use both heroin and methamphetamine (MA) have been shown to experience a wide range of cognitive deficits. Previous research shows that repetitive transcranial magnetic stimulation (rTMS) can change cerebral cortical excitability and regulate neurotransmitter concentration, which could improve cognitive function in drug addiction. However, the stimulation time, location, and possible mechanisms of rTMS are uncertain. Methods 56 patients with polydrug use disorder were randomized to receive 20 sessions of 10 Hz rTMS (n = 19), iTBS (n = 19), or sham iTBS (n = 18) to the left DLPFC. All patients used MA and heroin concurrently. Cognitive function was assessed and several related proteins including EPI, GABA-Aα5, IL-10, etc. were quantified by ELISA before and after the treatment. Results Baseline RBANS scores were lower than normal for age (77.25; IQR 71.5-85.5). After 20 treatment sessions, in the iTBS group, the RBANS score increased by 11.95 (95% CI 0.02-13.90, p = 0.05). In particular, there were improvements in memory and attention as well as social cognition. Following treatment, serum EPI and GABA-Aα5 were reduced and IL-10 was elevated. The improvement of immediate memory was negatively correlated with GABA-Aα5 (r = -0.646, p = 0.017), and attention was positively correlated with IL-10 (r = 0.610, p = 0.027). In the 10 Hz rTMS group, the improvement of the RBANS total score (80.21 ± 14.08 before vs.84.32 ± 13.80 after) and immediate memory (74.53 ± 16.65 before vs.77.53 ± 17.78 after) was statistically significant compared with the baseline (p < 0.05). However, compared with the iTBS group, the improvement was small and the difference was statistically significant. There was no statistically significant change in the sham group (78.00 ± 12.91 before vs.79.89 ± 10.92 after; p > 0.05). Conclusion Intermittent theta burst stimulation to the left DLPFC may improve cognitive function in polydrug use disorder patients. Its efficacy appears to be better than that of 10 Hz rTMS. The improvement of cognitive function may be related to GABA-Aα5 and IL-10. Our findings preliminarily demonstrate the clinical value of iTBS to the DLPFC to augment neurocognitive recovery in polydrug use disorders.
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Affiliation(s)
- Ling Dong
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Wen-Cai Chen
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Hang Su
- Shanghai Mental Health Center, Shanghai, China
| | - Mei-Ling Wang
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Cong Du
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Xing-ren Jiang
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Shu-fang Mei
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Si-Jing Chen
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Xiu-Jun Liu
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
| | - Xue-Bing Liu
- Wuhan Mental Health Center, Wuhan, Hubei Province, China
- Wuhan Hospital for Psychotherapy, Wuhan, Hubei Province, China
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Markiewicz-Gospodarek A, Markiewicz R, Borowski B, Dobrowolska B, Łoza B. Self-Regulatory Neuronal Mechanisms and Long-Term Challenges in Schizophrenia Treatment. Brain Sci 2023; 13:brainsci13040651. [PMID: 37190616 DOI: 10.3390/brainsci13040651] [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: 03/30/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 05/17/2023] Open
Abstract
Schizophrenia is a chronic and relapsing disorder that is characterized not only by delusions and hallucinations but also mainly by the progressive development of cognitive and social deficits. These deficits are related to impaired synaptic plasticity and impaired neurotransmission in the nervous system. Currently, technological innovations and medical advances make it possible to use various self-regulatory methods to improve impaired synaptic plasticity. To evaluate the therapeutic effect of various rehabilitation methods, we reviewed methods that modify synaptic plasticity and improve the cognitive and executive processes of patients with a diagnosis of schizophrenia. PubMed, Scopus, and Google Scholar bibliographic databases were searched with the keywords mentioned below. A total of 555 records were identified. Modern methods of schizophrenia therapy with neuroplastic potential, including neurofeedback, transcranial magnetic stimulation, transcranial direct current stimulation, vagus nerve stimulation, virtual reality therapy, and cognitive remediation therapy, were reviewed and analyzed. Since randomized controlled studies of long-term schizophrenia treatment do not exceed 2-3 years, and the pharmacological treatment itself has an incompletely estimated benefit-risk ratio, treatment methods based on other paradigms, including neuronal self-regulatory and neural plasticity mechanisms, should be considered. Methods available for monitoring neuroplastic effects in vivo (e.g., fMRI, neuropeptides in serum), as well as unfavorable parameters (e.g., features of the metabolic syndrome), enable individualized monitoring of the effectiveness of long-term treatment of schizophrenia.
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Affiliation(s)
| | - Renata Markiewicz
- Department of Neurology, Neurological and Psychiatric Nursing, Medical University of Lublin, 20-093 Lublin, Poland
| | - Bartosz Borowski
- Students Scientific Association at the Department of Human Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
| | - Beata Dobrowolska
- Department of Holistic Care and Management in Nursing, Medical University of Lublin, 20-081 Lublin, Poland
| | - Bartosz Łoza
- Department of Psychiatry, Medical University of Warsaw, 02-091 Warsaw, Poland
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Akdağ MZ, Oğraş E, Doğanyiğit Z, Akyüz E, Akdag MB, Okan A, Akpolat V, Küllü IR. The increase in c-fos expression in epileptic seizures is inhibited by magnetic field application, but not K Ca1.1 channel expression. Electromagn Biol Med 2023; 42:81-97. [PMID: 37598353 DOI: 10.1080/15368378.2023.2247027] [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: 04/11/2023] [Accepted: 07/15/2023] [Indexed: 08/22/2023]
Abstract
The aim of this study was to understand the expression of big potassium (BK, KCa1.1) channels in epileptic seizures under magnetic field application. Forty Wistar albino adult male rats were divided into five groups (n = 8). First group rats were control group. Pentylenetetrazole (PTZ) administrated to second group rats to induce the seizures with 35 mg/kg intraperitoneally injection every two days. Levetiracetam (LEV) i.p. at a dose of 108 mg/kg was given to third group rats as positive control group (PC) before 20 minutes PTZ administration. Pulsed magnetic field with 1.5 mT was exposed to the fourth group rats for 3 hours a day for 1 month as magnetic field (MF) group. 1.5 mT pulsed magnetic field was exposed to the fifth group rats for 3 hours a day for 1 month in addition to PTZ administration (PTZ+MF). KCa1.1 not changed in hippocampus of PTZ rats while increased in frontal cortex and pons for PTZ group but not changed with magnetic field exposure. KCa1.1 increased in heart of PTZ animals and turned back to mean control values with magnetic field exposure. Suppressing the expected increase of c-fos protein expression in seizures with magnetic field application but not being able to change the KCa1.1 expression shows that new studies can be done by increasing the frequency of 1.5 mT magnetic field.
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Affiliation(s)
- Mehmet Zülkif Akdağ
- Medical Faculty, Department of Biophysics, Dicle University, Diyarbakır, Turkey
| | - Emrah Oğraş
- Medical Faculty, Department of Biophysics, Dicle University, Diyarbakır, Turkey
| | - Züleyha Doğanyiğit
- Medical Faculty, Department of Histology and Embryology, Yozgat Bozok University, Yozgat, Turkey
| | - Enes Akyüz
- International Faculty of Medicine, Department of Biophysics, University of Health Sciences, Istanbul, Turkey
| | - Mahmut Berat Akdag
- Institute of Health Sciences, Department of Physiotherapy and Rehabilitation, Istanbul Medipol University, Istanbul, Turkey
| | - Aslı Okan
- Medical Faculty, Department of Histology and Embryology, Yozgat Bozok University, Yozgat, Turkey
| | - Veysi Akpolat
- Medical Faculty, Department of Biophysics, Dicle University, Diyarbakır, Turkey
| | - I Rem Küllü
- Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
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Accelerated intermittent theta burst stimulation in smoking cessation: No differences between active and placebo stimulation when using advanced placebo coil technology. A double-blind follow-up study. Int J Clin Health Psychol 2023; 23:100351. [PMID: 36415606 PMCID: PMC9663325 DOI: 10.1016/j.ijchp.2022.100351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022] Open
Abstract
Objective This study aims to investigate the longer-term effects of accelerated intermittent theta burst stimulation (aiTBS) in smoking cessation and to examine whether there is a difference in outcome between active and placebo stimulation. The present study constitutes an ancillary study from a main Randomized Controlled Trial (RCT) evaluating the acute effects of aiTBS in smoking reduction. Method A double-blind randomized control trial was conducted where 89 participants were randomly allocated to three groups (transcranial magnetic stimulation (TMS)&N group: active aiTBS stimulation combined with neutral videos; TMS&S group: active aiTBS stimulation combined with smoking-related videos; Placebo group: placebo stimulation combined with smoking-related videos). Nicotine dependence, tobacco craving, perceived stress and motivation to quit smoking were measured after completion of 20 aiTBS sessions and during various follow ups (post one week, post one month and post six months). Results Our results show that the positive effect on nicotine dependence and tobacco craving that occurred at the end of treatment lasts at least one month post treatment. This effect seems to dissipate six months post treatment. No significant differences were found between the three groups. Conclusion Both active and placebo stimulation were equally effective in reducing nicotine dependence and tobacco craving up to one month after the end of treatment.
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Arrington CN, Ossowski AE, Baig H, Persichetti E, Morris R. The Impact of Transcranial Magnetic Stimulation on Reading Processes: A Systematic Review. Neuropsychol Rev 2023; 33:255-277. [PMID: 35119625 PMCID: PMC9349478 DOI: 10.1007/s11065-022-09534-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/14/2021] [Indexed: 01/26/2023]
Abstract
The current systematic review examines the behavioral effects of TMS on reading. Transcranial magnetic stimulation (TMS) to targeted nodes of the brain's reading network has been shown to impact reading. Extracted data included (a) study characteristics, (b) methodology, (c) targeted nodes, (d) control paradigm, (e) type of reading task, (f) adverse effects, and (g) main findings. Data was classified by type of reading task: 1) phonological processing, 2) semantic judgment, 3) lexical decision, 4) whole word reading, and 5) visual or text characteristics. Seventy records from 46 studies (n = 844) were identified. Results indicate that TMS modulates semantic judgments when focused in the anterior aspects of the reading circuit, phonological processes after stimulation within the dorsal circuit, and impacts single word recognition and contextual reading when administered to the ventral circuit. Findings suggest that changes in specific behavioral aspects of reading following TMS may contribute to identification of foci for use as part of reading interventions.
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Affiliation(s)
- C Nikki Arrington
- Department of Psychology, Georgia State University, Atlanta, GA, 30303, USA. .,GSU/GT Center for Advanced Brain Imaging, Atlanta, GA, 30318, USA.
| | | | - Humza Baig
- Department of Psychology, Georgia State University, Atlanta, GA, 30303, USA.,GSU/GT Center for Advanced Brain Imaging, Atlanta, GA, 30318, USA
| | - Eileen Persichetti
- GSU/GT Center for Advanced Brain Imaging, Atlanta, GA, 30318, USA.,School of Social Work, Boston University, Boston, MA, 02215, USA
| | - Robin Morris
- Department of Psychology, Georgia State University, Atlanta, GA, 30303, USA.,GSU/GT Center for Advanced Brain Imaging, Atlanta, GA, 30318, USA
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Liu Y, Lim K, Sundman MH, Ugonna C, Ton That V, Cowen S, Chou YH. Association Between Responsiveness to Transcranial Magnetic Stimulation and Interhemispheric Functional Connectivity of Sensorimotor Cortex in Older Adults. Brain Connect 2023; 13:39-50. [PMID: 35620910 PMCID: PMC9942174 DOI: 10.1089/brain.2021.0180] [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] [Indexed: 11/13/2022] Open
Abstract
Introduction: Repetitive transcranial magnetic stimulation (rTMS) is a promising therapeutic technique, and is believed to accomplish its effect by influencing the stimulated and remotely connected areas. However, responsiveness to rTMS shows high interindividual variability, and this intersubject variability is particularly high in older adults. It remains unclear whether baseline resting-state functional connectivity (rsFC) contributes to this variability in older adults. The aims of this study are to (1) examine rTMS effects over the primary motor cortex (M1) in older adults, and (2) identify baseline network properties that may contribute to the interindividual variability. Methods: We tested response to intermittent theta burst stimulation (iTBS), an effective rTMS protocol, over M1 by using both electromyography and resting-state functional magnetic resonance imaging in older adults. Outcome measures included motor-evoked potential (MEP) elicited by single-pulse transcranial magnetic stimulation and rsFC before and after an iTBS session. Results: iTBS significantly increased MEP amplitudes and rsFC between the stimulation site, sensorimotor cortex, and supplementary motor area (SMA) in older adults. iTBS-induced changes in MEP amplitude were positively correlated with increases in interhemispheric rsFC after iTBS. Furthermore, older adults with lower baseline interhemispheric rsFC between sensorimotor cortex and SMA exhibited stronger MEP response after iTBS. Discussion: Findings of the study suggest that different levels of interhemispheric communication during resting state might contribute to the response heterogeneity to iTBS in older adults. Interhemispheric rsFC may have great potential serving as a useful marker for predicting iTBS responsiveness in older adults. ClinicalTrials.gov ID: 1707654427 Impact statement Factors contributing to interindividual variability of the responsive to repetitive transcranial magnetic stimulation (rTMS) in older adults remain poorly understood. In this study, we examined the effects of rTMS over the primary motor cortex in older adults, and found that response to rTMS is associated with prestimulation interhemispheric connectivity in the sensorimotor and premotor areas. Findings of the study have great potential to be translated into a connectivity-based strategy for identification of responders for rTMS in older adults.
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Affiliation(s)
- Yilin Liu
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
| | - Koeun Lim
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
| | - Mark H. Sundman
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
| | - Chidi Ugonna
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
- Department of Biomedical Engineering, University of Arizona, Tucson, Arizona, USA
| | - Viet Ton That
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
| | - Stephen Cowen
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
- Evelyn F McKnight Brain Institute, Arizona Center on Aging, and BIO5 Institute, University of Arizona, Tucson, Arizona, USA
| | - Ying-hui Chou
- Department of Psychology and University of Arizona, Tucson, Arizona, USA
- Evelyn F McKnight Brain Institute, Arizona Center on Aging, and BIO5 Institute, University of Arizona, Tucson, Arizona, USA
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Buetefisch CM, Wei L, Gu X, Epstein CM, Yu SP. Neuroprotection of Low-Frequency Repetitive Transcranial Magnetic Stimulation after Ischemic Stroke in Rats. Ann Neurol 2023; 93:336-347. [PMID: 36097798 PMCID: PMC10042643 DOI: 10.1002/ana.26509] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/09/2022] [Accepted: 09/11/2022] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Stroke is a leading cause of human death and disability. Effective early treatments with reasonable therapeutic windows remain critically important to improve the outcomes of stroke. Transcranial magnetic stimulation (TMS) is an established noninvasive technique that has been applied clinically and in animal research for multiple brain disorders, but few studies have examined acute neuroprotection against ischemic stroke. The present investigation tested the novel approach of low-frequency repetitive TMS (rTMS) as an acute treatment after ischemic stroke. METHODS Adult male rats received focal ischemic surgery through occlusion of the right middle cerebral artery for 60 minutes. The rats received either rTMS or sham treatment with 1.5-, 3-, 4-, or 7-hour delay after the onset of stroke. Low-frequency and low-intensity rTMS was applied to the rat brain for two 30-minute episodes separated by a 1-hour interval. RESULTS Three days after stroke, compared to stroke controls, rats receiving rTMS treatment with a 1.5-hour delay showed a 35% reduction of infarct volume. Protective effects were also seen with 3- or 4-hour-delayed treatments by rTMS, shown as reduced infarct volume and cell death. rTMS treatment upregulated the antiapoptotic factor Bcl-2 and downregulated the proapoptotic caspase-3 cleavage, expressions of Bax and matrix metallopeptidase-9. In sensorimotor functional assessments 3 to 21 days after stroke, rats receiving rTMS treatment with a 1.5- or 3-hour delay showed significantly better performance compared to stroke controls. INTERPRETATION These results support the inference that low-frequency rTMS may be feasible as a neuroprotective acute treatment after ischemic stroke. ANN NEUROL 2023;93:336-347.
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Affiliation(s)
- Cathrin M Buetefisch
- Department of Neurology, Emory University, Atlanta, Georgia, USA
- Department of Rehabilitation Medicine, Emory University, Atlanta, Georgia, USA
| | - Ling Wei
- Department of Neurology, Emory University, Atlanta, Georgia, USA
- Department of Anesthesiology, Emory University, Atlanta, Georgia, USA
| | - Xiaohuan Gu
- Department of Anesthesiology, Emory University, Atlanta, Georgia, USA
| | | | - Shan P Yu
- Department of Anesthesiology, Emory University, Atlanta, Georgia, USA
- Center for Visual and Neurocognitive Rehabilitation Atlanta, VA Medical Center, Decatur, Georgia, USA
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A Randomized Controlled Trial of the Effect of Repetitive Transcranial Magnetic Stimulation of the Motor Cortex on Lower Extremity Spasticity in Hereditary Spastic Paraplegia. J Clin Neurophysiol 2023; 40:173-179. [PMID: 34817445 DOI: 10.1097/wnp.0000000000000874] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Hereditary spastic paraplegia refers to a group of conditions characterized by a slow progression of spasticity in lower limbs resulting in gait abnormalities. Current treatment options have proven to be insufficient in terms of symptom alleviation. In this study, we tested the effectiveness of repetitive transcranial magnetic stimulation (rTMS) on lower limb spasticity in patients with hereditary spastic paraplegia. METHODS Eight patients were randomly assigned to receive either five sessions of active 5 Hz-rTMS ( n = 4) or sham rTMS ( n = 4). The primary outcome was a change in spasticity assessed by the modified Ashworth scale. Secondary outcomes were change in 10 m walking test, Fugl-Meyer assessment of lower extremity motor function, and quality-of-life short-form survey scores. Assessment of the outcomes was done before, upon completion, and 1 month after the intervention. We analyzed the data using repeated-measure analysis of variance. RESULTS Mean age of the participants was 38.5 (SD = 5.4) years, and 50% were women. Compared with sham rTMS, real rTMS was effective in decreasing modified Ashworth scale (rTMS × time: F [df = 2] = 7.44; P = 0.008). Real rTMS group had lower modified Ashworth scale scores at the end of rTMS sessions (estimate = -0.938; SE = 0.295; P = 0.019) and at the end of follow-up (estimate = -0.688; SE = 0.277; P = 0.048) compared with the sham rTMS group. Real and sham rTMS groups were not different in the secondary outcomes. CONCLUSIONS Repetitive transcranial magnetic stimulation is an effective method in reducing lower limb spasticity of patients with hereditary spastic paraplegia.
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Revisiting the Rotational Field TMS Method for Neurostimulation. J Clin Med 2023; 12:jcm12030983. [PMID: 36769630 PMCID: PMC9917411 DOI: 10.3390/jcm12030983] [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: 12/22/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Transcranial magnetic stimulation (TMS) is a non-invasive technique that has shown high efficacy in the treatment of major depressive disorder (MDD) and is increasingly utilized for various neuropsychiatric disorders. However, conventional TMS is limited to activating only a small fraction of neurons that have components parallel to the induced electric field. This likely contributes to the significant variability observed in clinical outcomes. A novel method termed rotational field TMS (rfTMS or TMS 360°) enables the activation of a greater number of neurons by reducing the sensitivity to orientation. Recruitment of a larger number of neurons offers the potential to enhance efficacy and reduce variability in the treatment of clinical indications for which neuronal recruitment and organization may play a significant role, such as MDD and stroke. The potential of the method remains to be validated in clinical trials. Here, we revisit and describe in detail the rfTMS method, its principles, mode of operation, effects on the brain, and potential benefits for clinical TMS.
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Chirumamilla VC, Gonzalez-Escamilla G, Meyer B, Anwar AR, Ding H, Radetz A, Bonertz T, Groppa S, Muthuraman M. Inhibitory and excitatory responses in the dorso-medial prefrontal cortex during threat processing. Front Neurosci 2023; 16:1065469. [PMID: 36699539 PMCID: PMC9868831 DOI: 10.3389/fnins.2022.1065469] [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: 10/09/2022] [Accepted: 12/20/2022] [Indexed: 01/12/2023] Open
Abstract
Objective To evaluate cortical excitability during instructed threat processing. Methods Single and paired transcranial magnetic stimulation (TMS) pulses were applied to the right dorsomedial prefrontal cortex (dmPFC) during high-density electroencephalography (EEG) recording in young healthy participants (n = 17) performing an instructed threat paradigm in which one of two conditioned stimuli (CS+ but not CS-) was paired with an electric shock (unconditioned stimulus [US]). We assessed TMS-induced EEG responses with spectral power (both at electrode and source level) and information flow (effective connectivity) using Time-resolved Partial Directed Coherence (TPDC). Support vector regression (SVR) was used to predict behavioral fear ratings for CS+ based on TMS impact on excitability. Results During intracortical facilitation (ICF), frontal lobe theta power was enhanced for CS+ compared to single pulse TMS for the time window 0-0.5 s after TMS pulse onset (t(16) = 3.9, p < 0.05). At source level, ICF led to an increase and short intracortical inhibition (SICI) to a decrease of theta power in the bilateral dmPFC, relative to single pulse TMS during 0-0.5 s. Compared to single pulse TMS, ICF increased information flows, whereas SICI reduced the information flows in theta band between dmPFC, amygdala, and hippocampus (all at p < 0.05). The magnitude of information flows between dmPFC to amygdala and dmPFC to hippocampus during ICF (0-0.5 s), predicted individual behavioral fear ratings (CS+; coefficient above 0.75). Conclusion Distinct excitatory and inhibitory mechanisms take place in the dmPFC. These findings may facilitate future research attempting to investigate inhibitory/facilitatory mechanisms alterations in psychiatric disorders and their behavioral correlates.
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Affiliation(s)
- Venkata C. Chirumamilla
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Gabriel Gonzalez-Escamilla
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Benjamin Meyer
- Neuroimaging Center Mainz, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Abdul Rauf Anwar
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Hao Ding
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Angela Radetz
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Tamara Bonertz
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Sergiu Groppa
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Muthuraman Muthuraman
- Section of Movement Disorders and Neurostimulation, Department of Neurology, Focus Program Translational Neuroscience (FTN), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany,*Correspondence: Muthuraman Muthuraman,
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Abo Aoun M, Meek BP, Clair L, Wikstrom S, Prasad B, Modirrousta M. Prognostic factors in major depressive disorder: comparing responders and non-responders to Repetitive Transcranial Magnetic Stimulation (rTMS), a naturalistic retrospective chart review. Psychiatry Clin Neurosci 2023; 77:38-47. [PMID: 36207801 DOI: 10.1111/pcn.13488] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/18/2022] [Accepted: 10/04/2022] [Indexed: 01/06/2023]
Abstract
AIM Repetitive transcranial magnetic stimulation (rTMS) is widely utilized as an effective treatment for major depressive disorder (MDD) with varying response rates. Factors associated with better treatment outcome remain scarce. This naturalistic retrospective chart review hopes to shed light on easily obtainable and measurable predictive factors for patients referred to rTMS. METHODS Protocol parameters, medication, rated scales, rTMS protocols, and treatment outcomes were reviewed for 196 patients with MDD who received rTMS at Saint Boniface Hospital between 2013 and 2019. Logistic regression and marginal effects were used to assess the different predictor variables for response (50% reduction or more on the Hamilton Depression Rating Scale (Ham-D)) and remission (Ham-D of ≤7 by the last session). RESULTS HamD at 10 sessions was predictive of remission, and Sheehan Disability Scale (SDS) at 10 sessions was predictive of response to rTMS. Ham-D, SDS, and Beck Anxiety Inventory were predictive of remission and response by Beck Anxiety Inventory 20 sessions. High frequency rTMS had a similar response and remission rate to low frequency, but higher response rate to intermittent Theta Burst Stimulation with no difference in remission rate. Positive predictive factors of response were lower age and bupropion use. Negative predictive factors were antipsychotics, anticonvulsants, or benzodiazepine use. For remission, antipsychotics or anticonvulsants use were negative predictors; bupropion use and higher resting motor threshold were positive predictors. Severity of depression as measured by baseline HamD was not associated with different probabilities of treatment success.
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Affiliation(s)
| | - Benjamin P Meek
- Department of Clinical Health Psychology, University of Manitoba, Winnipeg, Canada
| | - Luc Clair
- Department of Economics, University of Winnipeg, Winnipeg, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, Saint Boniface Research Hospital, Winnipeg, Canada
| | - Sara Wikstrom
- Saint Boniface Hospital, Psychiatry, Winnipeg, Canada
| | | | - Mandana Modirrousta
- BrainWave Clinic, Winnipeg, Canada.,Department of Psychiatry, University of Manitoba, Winnipeg, Canada
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Yingli B, Zunke G, Wei C, Shiyan W. Cerebral activity manipulation of low-frequency repetitive transcranial magnetic stimulation in post-stroke patients with cognitive impairment. Front Neurol 2022; 13:951209. [PMID: 36425802 PMCID: PMC9679635 DOI: 10.3389/fneur.2022.951209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 10/10/2022] [Indexed: 08/04/2023] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the therapeutic effect of low-frequency repetitive transcranial magnetic stimulation (rTMS) on post-stroke cognitive impairment (PSCI). METHODS Thirty-six PSCI patients were randomly divided into treatment and control groups of equal size. Both groups were pre-treated with conventional cognitive rehabilitation training. Subsequently, the treatment group was exposed to 1 Hz low-frequency repetitive transcranial magnetic stimulations for 8 weeks, with 5 days per week. Meanwhile, the control group was treated with placebo stimulations. Patients were evaluated via the LOTCA scale assessments and changes in P300 latencies and amplitudes before and after 8 weeks of treatment. RESULTS Before treatment, there were no significant differences between the two groups in LOTCA scores, P300 latencies, and amplitudes (P > 0.05). After treatment, LOTCA scores for both groups improved (P < 0.05), and those of the treatment group were higher than those of the control (P < 0.05). For both groups, P300 latencies were not only shortened but also had greater amplitudes (P < 0.05), and those for the treatment group were significantly shorter and larger than those of the control (P < 0.05). CONCLUSION As a therapy, rTMS improved cognitive function in PSCI patients, possibly via regulation of neural electrical activity of the cerebral cortex.
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Affiliation(s)
- Bi Yingli
- Xuzhou Rehabilitation Hospital, Xuzhou, China
- Department of Rehabilitation Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Gong Zunke
- Xuzhou Rehabilitation Hospital, Xuzhou, China
- Department of Rehabilitation Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Chen Wei
- Xuzhou Rehabilitation Hospital, Xuzhou, China
- Department of Rehabilitation Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Wang Shiyan
- Department of Rehabilitation Medicine, Xuzhou Central Hospital, Xuzhou, China
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Lohof AM, Dufor T, Sherrard RM. Neural Circuit Repair by Low-Intensity rTMS. CEREBELLUM (LONDON, ENGLAND) 2022; 21:750-754. [PMID: 35023064 DOI: 10.1007/s12311-021-01354-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
Electromagnetic brain stimulation is a promising treatment in neurology and psychiatry. However, clinical outcomes are variable and underlying mechanisms remain ill-defined, impeding the development of new effective stimulation protocols. There is increasing application of repetitive transcranial magnetic stimulation (rTMS) to the cerebellum to induce forebrain plasticity through its long-distance cerebello-cerebral circuits. To better understand what magnetic stimulation does within the cerebellum, we have developed tools to generate defined low-intensity (LI) magnetic fields and deliver them in vivo, in 3D organotypic culture and in primary cultures, over a range of stimulation parameters. Here we show that low-intensity rTMS (LI-rTMS) to the cerebellum induces axon growth and synapse formation providing olivocerebellar reinnervation. This repair depends on stimulation pattern, with complex biomimetic patterns being most effective, and this requires the presence of a cellular magnetoreceptor, cryptochrome. To explain these reparative changes, we found that repair-promoting LI-rTMS patterns, but not ineffective ones, increased c-fos expression in Purkinje neurons, consistent with the production of reactive oxygen species by activated cryptochrome. Rather than activating neurons via induced electric currents, we propose that weak magnetic fields act through cryptochrome, activating intracellular signals that induce climbing fibre-Purkinje cell reinnervation. This information opens new routes to optimize cerebellar magnetic stimulation and its potential role as an effective treatment for neurological diseases.
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Affiliation(s)
- A M Lohof
- Sorbonne Université and CNRS, IBPS-B2A UMR8256 Biological Adaptation and Ageing, Boite 256, 9 Quai St Bernard, 75005, Paris, France
| | - T Dufor
- Sorbonne Université and CNRS, IBPS-B2A UMR8256 Biological Adaptation and Ageing, Boite 256, 9 Quai St Bernard, 75005, Paris, France
| | - R M Sherrard
- Sorbonne Université and CNRS, IBPS-B2A UMR8256 Biological Adaptation and Ageing, Boite 256, 9 Quai St Bernard, 75005, Paris, France.
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Zhu HQ, Luo J, Wang XQ, Zhang XA. Non-invasive brain stimulation for osteoarthritis. Front Aging Neurosci 2022; 14:987732. [PMID: 36247995 PMCID: PMC9557732 DOI: 10.3389/fnagi.2022.987732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/26/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease, the prevalence of OA is increasing, and the elderly are the most common in patients with OA. OA has a severe impact on the daily life of patients, this increases the demand for treatment of OA. In recent years, the application of non-invasive brain stimulation (NIBS) has attracted extensive attention. It has been confirmed that NIBS plays an important role in regulating cortical excitability and oscillatory rhythm in specific brain regions. In this review, we summarized the therapeutic effects and mechanisms of different NIBS techniques in OA, clarified the potential of NIBS as a treatment choice for OA, and provided prospects for further research in the future.
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Affiliation(s)
- Hui-Qi Zhu
- College of Kinesiology, Shenyang Sport University, Shenyang, China
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Jing Luo
- Department of Sport Rehabilitation, Xi’an University of Sport, Xi’an, China
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
- Xue-Qiang Wang,
| | - Xin-An Zhang
- College of Kinesiology, Shenyang Sport University, Shenyang, China
- *Correspondence: Xin-An Zhang,
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Zhang S, Gan L, Cao F, Wang H, Gong P, Ma C, Ren L, Lin Y, Lin X. The barrier and interface mechanisms of the brain barrier, and brain drug delivery. Brain Res Bull 2022; 190:69-83. [PMID: 36162603 DOI: 10.1016/j.brainresbull.2022.09.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/25/2022] [Accepted: 09/20/2022] [Indexed: 11/26/2022]
Abstract
Three different barriers are formed between the cerebrovascular and the brain parenchyma: the blood-brain barrier (BBB), the blood-cerebrospinal fluid barrier (BCSFB), and the cerebrospinal fluid-brain barrier (CBB). The BBB is the main regulator of blood and central nervous system (CNS) material exchange. The semipermeable nature of the BBB limits the passage of larger molecules and hydrophilic small molecules, Food and Drug Administration (FDA)-approved drugs for the CNS have been generally limited to lipid-soluble small molecules. Although the complexity of the BBB affects CNS drug delivery, understanding the composition and function of the BBB can provide a platform for the development of new methods for CNS drug delivery. This review summarizes the classification of the brain barrier, the composition and role of the basic structures of the BBB, and the transport, barrier, and destruction mechanisms of the BBB; discusses the advantages and disadvantages of different drug delivery methods and prospects for future drug delivery strategies.
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Affiliation(s)
- Shanshan Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310005, Zhejiang Province, China
| | - Lin Gan
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China
| | - Fengye Cao
- Yiyang The First Hospital of Traditional Chinese Medicine, Yiyang, Hunan Province, 413000, China
| | - Hao Wang
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China
| | - Peng Gong
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China
| | - Congcong Ma
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China
| | - Li Ren
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China
| | - Yubo Lin
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China
| | - Xianming Lin
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou 310053, China.
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Recognition and Processing of Visual Information after Neuronavigated Transcranial Magnetic Stimulation Session. Brain Sci 2022; 12:brainsci12091241. [PMID: 36138979 PMCID: PMC9497193 DOI: 10.3390/brainsci12091241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/02/2022] [Accepted: 09/12/2022] [Indexed: 11/27/2022] Open
Abstract
Background: Transcranial magnetic stimulation (TMS) is a method of noninvasive and painless stimulation of the nervous system, which is based on Faraday’s law of electromagnetic induction. Over the past twenty years, the TMS technique has been deployed as a tool for the diagnosis and therapy of neurodegenerative diseases, as well as in the treatment of mental disorders (e.g., depression). Methods: We tested the inhibitory effects of repetitive TMS (rTMS) on reaction times to militarily relevant visual stimuli amidst distractors and on accompanying blood oxygenation level dependent (BOLD) signal functional magnetic resonance imaging (fMRI) in 20 healthy people. rTMS was applied over the visual cortices, V1, on both hemispheres with the inhibitory theta burst paradigm with the intensity of 70% of the active motor threshold fMRI in 20 healthy people. Results: Analysis of the reaction time to visual stimuli after using TMS to the V1 visual cortex revealed an increase in the number of incorrect recognitions, and the reaction time was from 843 to 910 ms. In the subgroup of participants (n = 15), after the stimulation, there were significant reductions of BOLD signal in blood flow within V1 cortices. Conclusions: The studies of reaction times after the rTMS revealed the inhibitory effect of rTMS on the reaction times and recognition performance of significant (military) objects in the visual field.
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Tan S, Lin X, Liu Z, Wu Y, Xie B, Wang T. Non-pharmacological intervention effects on apathy caused by central nervous system organic diseases: A network meta-analysis. Medicine (Baltimore) 2022; 101:e30467. [PMID: 36107597 PMCID: PMC9439802 DOI: 10.1097/md.0000000000030467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND To evaluate the best non-pharmacological interventions on apathy in patients with central nervous system (CNS) organic diseases. METHODS We searched PubMed, Web of Science, Embase, Cochrane Library electronic databases, China national knowledge infrastructure, Wanfang and Chinese biomedical literature database studies published from 2011 to May 29, 2021. A combination of subject words and free words were used for searching. Randomized controlled trials (RCTs) of non-pharmacological interventions for apathy in patients with central nervous organic disease were included. Two researchers independently identified the eligible RCTs and extracted information. The risk of bias within each individual trial was assessed using the Cocharane Collaboration's tool. Review Manager 5.4 and ADDIS 1.16.5 were used for data analysis. RESULTS A total of 5324 related studies were obtained in the initial screening, and final 8 RCTs including 334 patients were included, involving 4 non-pharmacological interventions of cognitive intervention, repetitive transcranial magnetic stimulation (rTMS), music therapy and occupational therapy. Direct comparison results showed that rTMS, cognitive intervention, and occupational therapy were superior to the conventional group (P < .05). Network Meta repeated rTMS, cognitive intervention was superior to the conventional group (P < .05), while the other groups did not differ from with the conventional group (P > .05). The order of superiority was rTMS, cognitive intervention, occupational therapy, music therapy, and conventional group. CONCLUSION Current evidence suggests that rTMS and cognitive interventions are more effective than the conventional intervention in improving apathy in patients with CNS organic diseases. It still needs more non-pharmacological intervention studies with high quality, larger sample sizes for further exploration.
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Affiliation(s)
- Shaoying Tan
- Nursing Department of the First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Xiaoli Lin
- Nursing Department of the Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zan Liu
- Nursing Department of the Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Yao Wu
- International Nursing School of Hainan Medical University, Haikou, Hainan, China
| | - Bijiao Xie
- International Nursing School of Hainan Medical University, Haikou, Hainan, China
| | - Tao Wang
- International Nursing School of Hainan Medical University, Haikou, Hainan, China
- *Correspondence: Tao Wang, International Nursing School of Hainan Medical University, Xueyuan Road, Longhua District, Haikou, Hainan, China (e-mail: )
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Meng L, Tsang RCC, Ge Y, Guo Q, Gao Q. rTMS for poststroke pusher syndrome: study protocol for a randomised, patient-blinded controlled clinical trial. BMJ Open 2022; 12:e064905. [PMID: 35948377 PMCID: PMC9379536 DOI: 10.1136/bmjopen-2022-064905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION Poststroke pusher syndrome (PS) prevalence is high. Patients with PS require longer rehabilitation with prolonged length of stay. Effective treatment of PS remains a challenge for rehabilitation professionals. Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive neuromodulation technique that is effective and recommended in the clinical guidelines of stroke rehabilitation. However, the role of rTMS for PS has not been examined. The study is to assess the efficacy of a specific rTMS programme for patients with PS in reducing pushing behaviour, enhancing motor recovery and improving mobility, as well as testing the safety of rTMS for patients with PS. METHODS AND ANALYSIS A randomised, patient and assessor blinded sham-controlled trial with two parallel groups will be conducted. Thirty-four eligible patients with PS will be randomly allocated to receive either rTMS or sham rTMS for 3 weeks. The primary assessment outcome is the pushing behaviour measured by the Burke Lateropulsion Scale and Scale for Contraversive Pushing. The secondary outcomes are the motor functions and mobility measured by the Fugl-Meyer Assessment Scale (motor domain) and Modified Rivermead Mobility Index, and any adverse events. Assessment will be performed at baseline and 1 week, 2 weeks and 3 weeks after intervention. Repeated-measures analysis of variance will be used for data analysis with the level of significance level set at 0.05. ETHICS AND DISSEMINATION The protocol has been approved by the Biomedical Ethics Committee of West China Hospital, Sichuan University on 23 March 2022 (2022-133). The trial findings will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER Chinese Clinical Trial Registry (ChiCTR2200058015).
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Affiliation(s)
- Lijiao Meng
- Rehabilitation Medicine Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Raymond C C Tsang
- Physiotherapy Department, MacLehose Medical Rehabilitation Centre, Hong Kong, China
| | - Yanlei Ge
- Rehabilitation Medicine Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Qifan Guo
- Department of Rehabilitation Sciences, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Qiang Gao
- Rehabilitation Medicine Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, Sichuan University West China Hospital, Chengdu, Sichuan, China
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Makowiecki K, Stevens N, Cullen CL, Zarghami A, Nguyen PT, Johnson L, Rodger J, Hinder MR, Barnett M, Young KM, Taylor BV. Safety of low-intensity repetitive transcranial magneTic brAin stimUlation foR people living with mUltiple Sclerosis (TAURUS): study protocol for a randomised controlled trial. Trials 2022; 23:626. [PMID: 35922816 PMCID: PMC9347125 DOI: 10.1186/s13063-022-06526-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 07/06/2022] [Indexed: 11/30/2022] Open
Abstract
Background Multiple sclerosis (MS) is an inflammatory and neurodegenerative disease, characterised by oligodendrocyte death and demyelination. Oligodendrocyte progenitor cells can differentiate into new replacement oligodendrocytes; however, remyelination is insufficient to protect neurons from degeneration in people with MS. We previously reported that 4 weeks of daily low-intensity repetitive transcranial magnetic stimulation (rTMS) in an intermittent theta-burst stimulation (iTBS) pattern increased the number of new myelinating oligodendrocytes in healthy adult mice. This study translates this rTMS protocol and aims to determine its safety and tolerability for people living with MS. We will also perform magnetic resonance imaging (MRI) and symptom assessments as preliminary indicators of myelin addition following rTMS. Methods Participants (N = 30, aged 18–65 years) will have a diagnosis of relapsing-remitting or secondary progressive MS. ≤2 weeks before the intervention, eligible, consenting participants will complete a physical exam, baseline brain MRI scan and participant-reported MS symptom assessments [questionnaires: Fatigue Severity Scale, Quality of Life (AQoL-8D), Hospital Anxiety and Depression Scale; and smartphone-based measures of cognition (electronic symbol digit modalities test), manual dexterity (pinching test, draw a shape test) and gait (U-Turn test)]. Participants will be pseudo-randomly allocated to rTMS (n=20) or sham (placebo; n=10), stratified by sex. rTMS or sham will be delivered 5 days per week for 4 consecutive weeks (20 sessions, 6 min per day). rTMS will be applied using a 90-mm circular coil at low-intensity (25% maximum stimulator output) in an iTBS pattern. For sham, the coil will be oriented 90° to the scalp, preventing the magnetic field from stimulating the brain. Adverse events will be recorded daily. We will evaluate participant blinding after the first, 10th and final session. After the final session, participants will repeat symptom assessments and brain MRI, for comparison with baseline. Participant-reported assessments will be repeated at 4-month post-allocation follow-up. Discussion This study will determine whether this rTMS protocol is safe and tolerable for people with MS. MRI and participant-reported symptom assessments will serve as preliminary indications of rTMS efficacy for myelin addition to inform further studies. Trial registration Australian New Zealand Clinical Trials Registry ACTRN12619001196134. Registered on 27 August 2019
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Affiliation(s)
- Kalina Makowiecki
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.
| | - Natasha Stevens
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Carlie L Cullen
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Amin Zarghami
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Phuong Tram Nguyen
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Lewis Johnson
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Jennifer Rodger
- School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia.,Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
| | - Mark R Hinder
- Sensorimotor Neuroscience and Ageing Research Lab, School of Psychological Sciences, University of Tasmania, Hobart, TAS, Australia
| | - Michael Barnett
- Sydney Neuroimaging Analysis Centre (SNAC), Sydney, NSW, Australia.,Brain & Mind Centre, University of Sydney, Sydney, NSW, Australia
| | - Kaylene M Young
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Bruce V Taylor
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
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Effects of stimulus waveform on transcranial magnetic stimulation metrics in proximal and distal arm muscles. Neurophysiol Clin 2022; 52:366-374. [PMID: 35906169 DOI: 10.1016/j.neucli.2022.07.002] [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: 09/28/2021] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The purpose of this study was to determine the effect of common transcranial magnetic stimulation (TMS) waveforms (monophasic and biphasic) on resting motor threshold (RMT), active motor threshold (AMT), and motor evoked potential (MEP) amplitudes in the biceps and first dorsal interosseous (FDI) because waveforms may affect motor targets differently. We also determined test-retest reliability. METHODS Ten individuals participated in two sessions of TMS delivered to the motor cortex. Monophasic stimulation to induce a posterior-anterior current in the brain (monoPA) and biphasic posterior-anterior then anterior-posterior (biPA-AP) were applied in each session in random order. In each session, there were four blocks of measurements (2 muscles × 2 waveforms) of RMT, AMT and MEPs at the hotspot location. MEPs were normalized to the maximum EMG signal. RESULTS RMTs and AMTs were lower for monoPA compared to biPA-AP stimulation for the biceps (p<0.01) and FDI (p<0.01). Normalized MEPs were greater for monoPA compared to biPA-AP stimulation in the FDI (p=0.01) and not different in the biceps (p=0.86). Motor thresholds were not different between sessions suggesting high reliability (p<0.01). Normalized MEPs had very low reliability across sessions in the FDI, and moderate reliability in the biceps. DISCUSSION Preliminary investigation suggests the effect of TMS waveform on motor thresholds is similar in upper limb proximal and distal muscles, but the effect differs per motor target for MEPs. Further, test-retest reliability of waveform effects was sensitive to target muscle. These findings may contribute to improve the efficacy and reliability of TMS for clinical use.
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Continuous but not intermittent theta burst stimulation decreases striatal dopamine release and cortical excitability. Exp Neurol 2022; 354:114106. [DOI: 10.1016/j.expneurol.2022.114106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/12/2022] [Accepted: 05/01/2022] [Indexed: 11/22/2022]
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Starosta M, Cichoń N, Saluk-Bijak J, Miller E. Benefits from Repetitive Transcranial Magnetic Stimulation in Post-Stroke Rehabilitation. J Clin Med 2022; 11:jcm11082149. [PMID: 35456245 PMCID: PMC9030945 DOI: 10.3390/jcm11082149] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/11/2022] [Indexed: 02/04/2023] Open
Abstract
Stroke is an acute neurovascular central nervous system (CNS) injury and one of the main causes of long-term disability and mortality. Post-stroke rehabilitation as part of recovery is focused on relearning lost skills and regaining independence as much as possible. Many novel strategies in neurorehabilitation have been introduced. This review focuses on current evidence of the effectiveness of repetitive transcranial magnetic stimulation (rTMS), a noninvasive brain stimulation (NIBS), in post-stroke rehabilitation. Moreover, we present the effects of specific interventions, such as low-frequency or high-frequency rTMS therapy, on motor function, cognitive function, depression, and aphasia in post-stroke patients. Collected data suggest that high-frequency stimulation (5 Hz and beyond) produces an increase in cortical excitability, whereas low-frequency stimulation (≤1 Hz) decreases cortical excitability. Accumulated data suggest that rTMS is safe and can be used to modulate cortical excitability, which may improve overall performance. Side effects such as tingling sensation on the skin of the skull or headache are possible. Serious side effects such as epileptic seizures can be avoided by adhering to international safety guidelines. We reviewed clinical studies that present promising results in general recovery and stimulating neuroplasticity. This article is an overview of the current rTMS state of knowledge related to benefits in stroke, as well as its cellular and molecular mechanisms. In the stroke rehabilitation literature, there is a key methodological problem of creating double-blinding studies, which are very often impossible to conduct.
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Affiliation(s)
- Michał Starosta
- Department of Neurological Rehabilitation, Medical University of Lodz, Milionowa 14, 93-113 Lodz, Poland;
- Correspondence:
| | - Natalia Cichoń
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland;
| | - Joanna Saluk-Bijak
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland;
| | - Elżbieta Miller
- Department of Neurological Rehabilitation, Medical University of Lodz, Milionowa 14, 93-113 Lodz, Poland;
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Neuromodulation of facial emotion recognition in health and disease: A systematic review. Neurophysiol Clin 2022; 52:183-201. [DOI: 10.1016/j.neucli.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 03/20/2022] [Accepted: 03/21/2022] [Indexed: 11/20/2022] Open
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Zhang H, Huang X, Wang C, Liang K. Alteration of gamma-aminobutyric acid in the left dorsolateral prefrontal cortex of individuals with chronic insomnia: a combined transcranial magnetic stimulation-magnetic resonance spectroscopy study. Sleep Med 2022; 92:34-40. [DOI: 10.1016/j.sleep.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/23/2022] [Accepted: 03/02/2022] [Indexed: 11/29/2022]
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Aceves-Serrano L, Neva JL, Doudet DJ. Insight Into the Effects of Clinical Repetitive Transcranial Magnetic Stimulation on the Brain From Positron Emission Tomography and Magnetic Resonance Imaging Studies: A Narrative Review. Front Neurosci 2022; 16:787403. [PMID: 35264923 PMCID: PMC8899094 DOI: 10.3389/fnins.2022.787403] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/01/2022] [Indexed: 12/14/2022] Open
Abstract
Repetitive transcranial magnetic stimulation (rTMS) has been proposed as a therapeutic tool to alleviate symptoms for neurological and psychiatric diseases such as chronic pain, stroke, Parkinson’s disease, major depressive disorder, and others. Although the therapeutic potential of rTMS has been widely explored, the neurological basis of its effects is still not fully understood. Fortunately, the continuous development of imaging techniques has advanced our understanding of rTMS neurobiological underpinnings on the healthy and diseased brain. The objective of the current work is to summarize relevant findings from positron emission tomography (PET) and magnetic resonance imaging (MRI) techniques evaluating rTMS effects. We included studies that investigated the modulation of neurotransmission (evaluated with PET and magnetic resonance spectroscopy), brain activity (evaluated with PET), resting-state connectivity (evaluated with resting-state functional MRI), and microstructure (diffusion tensor imaging). Overall, results from imaging studies suggest that the effects of rTMS are complex and involve multiple neurotransmission systems, regions, and networks. The effects of stimulation seem to not only be dependent in the frequency used, but also in the participants characteristics such as disease progression. In patient populations, pre-stimulation evaluation was reported to predict responsiveness to stimulation, while post-stimulation neuroimaging measurements showed to be correlated with symptomatic improvement. These studies demonstrate the complexity of rTMS effects and highlight the relevance of imaging techniques.
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Affiliation(s)
- Lucero Aceves-Serrano
- Department of Medicine/Neurology, University of British Columbia, Vancouver, BC, Canada
- *Correspondence: Lucero Aceves-Serrano,
| | - Jason L. Neva
- École de Kinésiologie et des Sciences de l’Activité Physique, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Doris J. Doudet
- Department of Medicine/Neurology, University of British Columbia, Vancouver, BC, Canada
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DaSilva AF, Datta A, Swami J, Kim DJ, Patil PG, Bikson M. The Concept, Development, and Application of a Home-Based High-Definition tDCS for Bilateral Motor Cortex Modulation in Migraine and Pain. FRONTIERS IN PAIN RESEARCH 2022; 3:798056. [PMID: 35295794 PMCID: PMC8915734 DOI: 10.3389/fpain.2022.798056] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/13/2022] [Indexed: 11/16/2022] Open
Abstract
Whereas, many debilitating chronic pain disorders are dominantly bilateral (e.g., fibromyalgia, chronic migraine), non-invasive and invasive cortical neuromodulation therapies predominantly apply unilateral stimulation. The development of excitatory stimulation targeting bilateral primary motor (M1) cortices could potentially expand its therapeutic effect to more global pain relief. However, this is hampered by increased procedural and technical complexity. For example, repetitive transcranial magnetic stimulation (rTMS) and 4 × 1/2 × 2 high-definition transcranial direct current stimulation (4 × 1/2 × 2 HD-tDCS) are largely center-based, with unilateral-target focus—bilateral excitation would require two rTMS/4 × 1 HD-tDCS systems. We developed a system that allows for focal, non-invasive, self-applied, and simultaneous bilateral excitatory M1 stimulation, supporting long-term home-based treatment with a well-tolerated wearable battery-powered device. Here, we overviewed the most employed M1 neuromodulation methods, from invasive techniques to non-invasive TMS and tDCS. The evaluation extended from non-invasive diffuse asymmetric bilateral (M1-supraorbital [SO] tDCS), non-invasive and invasive unilateral focal (4 × 1/2 × 2 HD-tDCS, rTMS, MCS), to non-invasive and invasive bilateral bipolar (M1-M1 tDCS, MCS), before outlining our proposal for a neuromodulatory system with unique features. Computational models were applied to compare brain current flow for current laboratory-based unilateral M11 and bilateral M12 HD-tDCS models with a functional home-based M11−2 HD-tDCS prototype. We concluded the study by discussing the promising concept of bilateral excitatory M1 stimulation for more global pain relief, which is also non-invasive, focal, and home-based.
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Affiliation(s)
- Alexandre F. DaSilva
- Headache and Orofacial Pain Effort Lab, Department of Biologic and Materials Sciences and Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
- *Correspondence: Alexandre F. DaSilva
| | | | - Jaiti Swami
- Neural Engineering Laboratory, Department of Biomedical Engineering, The City College of New York, New York, NY, United States
| | - Dajung J. Kim
- Headache and Orofacial Pain Effort Lab, Department of Biologic and Materials Sciences and Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Parag G. Patil
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, United States
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, United States
| | - Marom Bikson
- Neural Engineering Laboratory, Department of Biomedical Engineering, The City College of New York, New York, NY, United States
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