Cerebello-Thalamo-Cortical Network Dynamics in the Harmaline Rodent Model of Essential Tremor
dc.contributor.author | Woodward, K | |
dc.contributor.author | Apps, R | |
dc.contributor.author | Goodfellow, M | |
dc.contributor.author | Cerminara, NL | |
dc.date.accessioned | 2022-11-10T10:29:30Z | |
dc.date.issued | 2022-07-28 | |
dc.date.updated | 2022-11-09T20:16:51Z | |
dc.description.abstract | Essential Tremor (ET) is a common movement disorder, characterised by a posture or movement-related tremor of the upper limbs. Abnormalities within cerebellar circuits are thought to underlie the pathogenesis of ET, resulting in aberrant synchronous oscillatory activity within the thalamo-cortical network leading to tremors. Harmaline produces pathological oscillations within the cerebellum, and a tremor that phenotypically resembles ET. However, the neural network dynamics in cerebellar-thalamo-cortical circuits in harmaline-induced tremor remains unclear, including the way circuit interactions may be influenced by behavioural state. Here, we examined the effect of harmaline on cerebello-thalamo-cortical oscillations during rest and movement. EEG recordings from the sensorimotor cortex and local field potentials (LFP) from thalamic and medial cerebellar nuclei were simultaneously recorded in awake behaving rats, alongside measures of tremor using EMG and accelerometery. Analyses compared neural oscillations before and after systemic administration of harmaline (10 mg/kg, I.P), and coherence across periods when rats were resting vs. moving. During movement, harmaline increased the 9-15 Hz behavioural tremor amplitude and increased thalamic LFP coherence with tremor. Medial cerebellar nuclei and cerebellar vermis LFP coherence with tremor however remained unchanged from rest. These findings suggest harmaline-induced cerebellar oscillations are independent of behavioural state and associated changes in tremor amplitude. By contrast, thalamic oscillations are dependent on behavioural state and related changes in tremor amplitude. This study provides new insights into the role of cerebello-thalamo-cortical network interactions in tremor, whereby neural oscillations in thalamocortical, but not cerebellar circuits can be influenced by movement and/or behavioural tremor amplitude in the harmaline model. | en_GB |
dc.description.sponsorship | Medical Research Council (MRC) | en_GB |
dc.description.sponsorship | Biotechnology and Biological Sciences Research Council (BBSRC) | en_GB |
dc.format.extent | 899446- | |
dc.format.medium | Electronic-eCollection | |
dc.identifier.citation | Vol. 16, article 899446 | en_GB |
dc.identifier.doi | https://doi.org/10.3389/fnsys.2022.899446 | |
dc.identifier.grantnumber | G1100626 | en_GB |
dc.identifier.grantnumber | BB/P000959/1 | en_GB |
dc.identifier.grantnumber | MR/N0137941/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/131721 | |
dc.identifier | ORCID: 0000-0002-7282-7280 (Goodfellow, Marc) | |
dc.language.iso | en | en_GB |
dc.publisher | Frontiers Media | en_GB |
dc.relation.url | https://www.ncbi.nlm.nih.gov/pubmed/35965995 | en_GB |
dc.rights | © 2022 Woodward, Apps, Goodfellow and Cerminara. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. | en_GB |
dc.subject | LFP | en_GB |
dc.subject | cerebellum | en_GB |
dc.subject | essential tremor | en_GB |
dc.subject | harmaline | en_GB |
dc.subject | motor cortex | en_GB |
dc.subject | thalamus | en_GB |
dc.title | Cerebello-Thalamo-Cortical Network Dynamics in the Harmaline Rodent Model of Essential Tremor | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2022-11-10T10:29:30Z | |
dc.identifier.issn | 1662-5137 | |
exeter.place-of-publication | Switzerland | |
dc.description | This is the final version. Available on open access from Frontiers Media via the DOI in this record | en_GB |
dc.description | Data Availability Statement: The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation. | en_GB |
dc.identifier.eissn | 1662-5137 | |
dc.identifier.journal | Frontiers in Systems Neuroscience | en_GB |
dc.relation.ispartof | Front Syst Neurosci, 16 | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2022-06-22 | |
dc.rights.license | CC BY | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2022-07-28 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2022-11-10T10:27:04Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2022-11-10T10:29:36Z | |
refterms.panel | B | en_GB |
refterms.dateFirstOnline | 2022-07-28 |
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Except where otherwise noted, this item's licence is described as © 2022 Woodward, Apps, Goodfellow and Cerminara. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.