scholarly journals Cognitive Impairment and Celiac Disease: Is Transcranial Magnetic Stimulation a Trait d’Union between Gut and Brain?

2018 ◽  
Vol 19 (8) ◽  
pp. 2243 ◽  
Author(s):  
Giuseppe Lanza ◽  
Rita Bella ◽  
Mariagiovanna Cantone ◽  
Giovanni Pennisi ◽  
Raffaele Ferri ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Neuroprotective Effect ◽  
Neurological Involvement ◽  
Non Invasive ◽  
Systemic Disorder ◽  
Assessment And Monitoring ◽  
Stimulation Technique

Celiac disease is a systemic disorder with multifactorial pathogenesis and multifaceted symptomatology. In response to gluten exposure, a significant part of the general population produces antibodies that have been hypothesized to be deleterious to the brain. Among the well-known neurological manifestations, adult celiac patients often complain cognitive symptoms, ranging from the so-called “brain fog” till an overt dementia. Transcranial magnetic stimulation (TMS) is a non-invasive brain stimulation technique that can contribute to the assessment and monitoring of celiac patients, even in those without a clear neurological involvement. The studies here reviewed seem to converge on an impaired central motor conductivity and a “hyperexcitable celiac brain” to TMS, which partially reverts back after a long-term gluten restriction. Notably, a clear hyperexcitability is a stably reported feature of both degenerative and vascular dementia. Therefore, given its potential neuroprotective effect, the gluten-free diet should be introduced as early as possible, although the overall response of neurological symptoms (and cognition in particular) is still controversial. Identifying new and possibly modifiable risk factors may be of crucial importance for patients, clinicians, and researchers.

Somatic treatments

2012 ◽  
Author(s):  
Raymond W. Lam
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Electroconvulsive Therapy ◽  
Magnetic Stimulation ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Light Therapy ◽  
Limited Data ◽  
Non Invasive ◽  
Resistant Depression ◽  
Term Management

• Wake therapy, exercise and light therapy are non-invasive and clinically useful treatments.• Electroconvulsive therapy remains an effective, safe and well-tolerated treatment for patients with severe, psychotic or medication-resistant depression.• Repetitive transcranial magnetic stimulation is an emerging treatment with evidence for acute efficacy, but with limited data about long-term management....

scholarly journals Cortical involvement in celiac disease before and after long-term gluten-free diet: A Transcranial Magnetic Stimulation study

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0177560 ◽  
Author(s):  
Manuela Pennisi ◽  
Giuseppe Lanza ◽  
Mariagiovanna Cantone ◽  
Riccardo Ricceri ◽  
Raffaele Ferri ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Gluten Free Diet ◽  
Gluten Free ◽  
Before And After ◽  
Cortical Involvement

scholarly journals Transcranial magnetic stimulation in cognitive neuroscience: Methodological basis and safety

2020 ◽  
Vol 7 (3) ◽  
pp. 25-44
Author(s):  
Ilya S. Bakulin ◽  
◽  
Alexandra G. Poydasheva ◽  
Alexey A. Medyntsev ◽  
Natalia A. Suponeva ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Cognitive Neuroscience ◽  
Magnetic Stimulation ◽  
Functional Brain Mapping ◽  
Non Invasive ◽  
Cognitive Studies ◽  
Virtual Lesion ◽  
Developing Method

Transcranial magnetic stimulation (TMS) is an intensively developing method of non-invasive brain stimulation. TMS is widely used in cognitive neuroscience to study the causal role of various cortical areas in visual perception, memory, attention, speech, and other cognitive functions. The article discusses the general principles and main directions of TMS applications in cognitive research as well as the modern aspects of using online TMS protocols for the creation of a temporary “virtual lesion”, functional brain mapping, and chronometric studies. Possible applications of offline TMS protocols for long-term modulation of the stimulated cortical area activity are also discussed. Methodological features of TMS studies, including targeting methods, as well as the frequency and intensity of stimulation, are highlighted. The article also describes the possibilities of combining TMS with other methods. Finally, the safety aspects of TMS in healthy subjects in the context of cognitive studies are discussed

scholarly journals Transcranial Magnetic Stimulation Alleviates Levodopa-Induced Dyskinesia in Parkinson's Disease and the Related Mechanisms: A Mini-Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Yi Wu ◽  
Xue-bing Cao ◽  
Wei-qi Zeng ◽  
Heng Zhai ◽  
Xiao-qian Zhang ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Brain Connectivity ◽  
Specific Treatment ◽  
Double Blind ◽  
Flow Modulation ◽  
Beneficial Effects ◽  
Non Invasive ◽  
Treatment Mechanisms

After long-term use of levodopa, Parkinson's patients almost inevitably develop dyskinesia, a kind of drug side effect manifesting as uncontrollable choreic movements and dystonia, which could be crippling yet have limited therapeutic options. Transcranial magnetic stimulation is the most widely studied non-invasive neuromodulation technology to treat levodopa-induced dyskinesia. Many studies have shown that transcranial magnetic stimulation has beneficial effects on levodopa-induced dyskinesia and is patient-tolerable, barely with reported adverse effects. Changes in brain connectivity, neuroplasticity, neurotransmitter, neurorestoration, and blood flow modulation could play crucial roles in the efficacy of transcranial magnetic stimulation for levodopa-induced dyskinesia. The appearance of new modes and application for emerging targets are possible solutions for transcranial magnetic stimulation to achieve sustained efficacy. Since the sample size in all available studies is small, more randomized double-blind controlled studies are needed to elucidate the specific treatment mechanisms and optimize treatment parameters.

scholarly journals Repeated Transcranial Magnetic Stimulation and Nursing Care: A Review

2020 ◽  
Vol 24 (6) ◽  
pp. 582-591
Author(s):  
Maryam Amini ◽  
◽  
Reza Zeighami ◽  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Psychiatric Nurses ◽  
Significant Treatment ◽  
Nursing Knowledge ◽  
Therapeutic Environment ◽  
Non Invasive ◽  
Anesthetic Drugs

Repeated Transcranial Magnetic Stimulation (RTMS) therapy is one of the modern treatment methods for various neurological and psychiatric diseases. With the clinical advancement of new therapies, there is a need to increase nursing knowledge, various practical skills, and new ways of organizing care. This study aims to review the rTMS, and the role of psychiatric nurses before, during and after rTMS. The search was conducted in IranMedex, PubMed, Elsevier, Google Scholar, Ovid, and SID databases using the keywords: Repeated transcranial magnetic stimulation, long-term potential, mental nerve, psychiatric nursing both in English and Persian. Initial search yielded 42 articles, of which 24 were selected for the review. Treatment with rTMS can cause significant treatment effects. It has low complications, and is non-invasive and painless. The patient is conscious during the treatment process and is safe from the effects of anesthetic drugs. This method is also effective for people who are resistant to treatment. The psychiatric nurses play an important role in rTMS and teach patients on the formation of realistic expectations and the establishment of systems that ensure the continuity of safety and care. Moreover, they can assess clinical problems and work with the patients to create a therapeutic environment.

Assessment and modulation of cortical inhibition using transcranial magnetic stimulation

e-Neuroforum ◽  
2017 ◽  
Vol 23 (1) ◽  
Author(s):  
Andreas Vlachos ◽  
Klaus Funke ◽  
Ulf Ziemann
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Neuronal Networks ◽  
Cortical Excitability ◽  
Cortical Inhibition ◽  
Excitatory Synapses ◽  
Long Term Depression ◽  
Non Invasive ◽  
Synaptic Changes

Abstract:Transcranial magnetic stimulation (TMS) is a non-invasive brain stimulation technique, which is used for diagnostic, therapeutic and scientific purposes in the field of neurology and psychiatry. It is based on the physical principle of electromagnetic induction and allows for the local activation of cortical areas through the intact skull of conscious humans. When applied repeatedly (repetitive TMS; rTMS) sustained changes of cortical excitability can be observed. Hence, TMS resembles a promising approach for assessing and modulating neuronal networks in a non-invasive manner. However, despite its broad clinical application, the cellular and molecular mechanisms of rTMS-based therapies remain not well understood. Established therapeutic concepts assume that pathologically altered cortical excitability is normalised, which may involve ‘long-term potentiation’ or ‘long-term depression’ of excitatory synapses. Indeed, animal studies demonstrate that rTMS induces long-term changes of excitatory neurotransmission. However, it is unclear through which mechanisms synaptic changes, which are caused by external electromagnetic activation of the cortex and therefore are not specific for context or behaviour, could have a positive impact on complex brain function. More recent findings suggest that not only excitatory but also inhibitory neuronal networks are modulated by rTMS. It was shown for example that 10 Hz rTMS leads to a calcium-dependent long-term depression of inhibitory GABAergic synapses. Since the reduction of inhibitory neurotransmission (= disinhibition) is considered important for the expression of associative plasticity at excitatory synapses, it is conceivable that rTMS-induced disinhibition may promote context- and behaviour-specific synaptic changes. Hence, the model of

scholarly journals Transcranial Magnetic Stimulation as a Tool to Investigate Motor Cortex Excitability in Sport

2021 ◽  
Vol 11 (4) ◽  
pp. 432
Author(s):  
Fiorenzo Moscatelli ◽  
Antonietta Messina ◽  
Anna Valenzano ◽  
Vincenzo Monda ◽  
Monica Salerno ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Motor Cortex ◽  
Magnetic Stimulation ◽  
Motor Coordination ◽  
Cortical Excitability ◽  
Non Invasive ◽  
Motor Cortex Excitability ◽  
Invasive Method ◽  
And Control ◽  
The Impact

Transcranial magnetic stimulation, since its introduction in 1985, has brought important innovations to the study of cortical excitability as it is a non-invasive method and, therefore, can be used both in healthy and sick subjects. Since the introduction of this cortical stimulation technique, it has been possible to deepen the neurophysiological aspects of motor activation and control. In this narrative review, we want to provide a brief overview regarding TMS as a tool to investigate changes in cortex excitability in athletes and highlight how this tool can be used to investigate the acute and chronic responses of the motor cortex in sport science. The parameters that could be used for the evaluation of cortical excitability and the relative relationship with motor coordination and muscle fatigue, will be also analyzed. Repetitive physical training is generally considered as a principal strategy for acquiring a motor skill, and this process can elicit cortical motor representational changes referred to as use-dependent plasticity. In training settings, physical practice combined with the observation of target movements can enhance cortical excitability and facilitate the process of learning. The data to date suggest that TMS is a valid technique to investigate the changes in motor cortex excitability in trained and untrained subjects. Recently, interest in the possible ergogenic effect of non-invasive brain stimulation in sport is growing and therefore in the future it could be useful to conduct new experiments to evaluate the impact on learning and motor performance of these techniques.

scholarly journals Intracortical and Intercortical Motor Disinhibition to Transcranial Magnetic Stimulation in Newly Diagnosed Celiac Disease Patients

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1530
Author(s):  
Francesco Fisicaro ◽  
Giuseppe Lanza ◽  
Carmela Cinzia D’Agate ◽  
Raffaele Ferri ◽  
Mariagiovanna Cantone ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Rating Scale ◽  
De Novo ◽  
Motor Evoked Potentials ◽  
Silent Period ◽  
Cross Sectional ◽  
Transcallosal Inhibition ◽  
Resting Motor Threshold

Background: Celiac disease (CD) may present or be complicated by neurological and neuropsychiatric manifestations. Transcranial magnetic stimulation (TMS) probes brain excitability non-invasively, also preclinically. We previously demonstrated an intracortical motor disinhibition and hyperfacilitation in de novo CD patients, which revert back after a long-term gluten-free diet (GFD). In this cross-sectional study, we explored the interhemispheric excitability by transcallosal inhibition, which has never been investigated in CD. Methods: A total of 15 right-handed de novo, neurologically asymptomatic, CD patients and 15 age-matched healthy controls were screened for cognitive and depressive symptoms to the Montreal Cognitive Assessment (MoCA) and the 17-item Hamilton Depression Rating Scale (HDRS), respectively. TMS consisted of resting motor threshold, amplitude, latency, and duration of the motor evoked potentials, duration and latency of the contralateral silent period (cSP). Transcallosal inhibition was evaluated as duration and latency of the ipsilateral silent period (iSP). Results: MoCA and HDRS scored significantly worse in patients. The iSP and cSP were significantly shorter in duration in patients, with a positive correlation between the MoCA and iSP. Conclusions: An intracortical and interhemispheric motor disinhibition was observed in CD, suggesting the involvement of GABA-mediated cortical and callosal circuitries. Further studies correlating clinical, TMS, and neuroimaging data are needed.

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