期刊
FRONTIERS IN NEUROLOGY
卷 12, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fneur.2021.587771
关键词
transcranial direct current stimulation; transcranial alternating current stimulation; neurobiological after-effects; synaptic plasiticty; non-invasive brain stimulation
资金
- Italian Minister of University and Research (MUR) [PRIN2017-2017XJ38A4_003]
This review focuses on the molecular and cellular mechanisms of transcranial direct and alternating current stimulation, highlighting changes in membrane potential, neural synchronization, protein synthesis, and the role of glial cells in synaptic plasticity. Research from in vitro and in vivo studies in animals and humans provide insights into possible pathways for the development of targeted therapeutic applications.
Non-invasive low-intensity transcranial electrical stimulation (tES) of the brain is an evolving field that has brought remarkable attention in the past few decades for its ability to directly modulate specific brain functions. Neurobiological after-effects of tES seems to be related to changes in neuronal and synaptic excitability and plasticity, however mechanisms are still far from being elucidated. We aim to review recent results from in vitro and in vivo studies that highlight molecular and cellular mechanisms of transcranial direct (tDCS) and alternating (tACS) current stimulation. Changes in membrane potential and neural synchronization explain the ongoing and short-lasting effects of tES, while changes induced in existing proteins and new protein synthesis is required for long-lasting plastic changes (LTP/LTD). Glial cells, for decades supporting elements, are now considered constitutive part of the synapse and might contribute to the mechanisms of synaptic plasticity. This review brings into focus the neurobiological mechanisms and after-effects of tDCS and tACS from in vitro and in vivo studies, in both animals and humans, highlighting possible pathways for the development of targeted therapeutic applications.
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