The cerebellum contributes to generalized seizures by altering activity in the ventral posteromedial nucleus.
The cerebellum contributes to generalized seizures by altering activity in the ventral posteromedial nucleus.
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DOI:
10.1038/s42003-023-05100-w
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发表时间:
2023-07-15
影响因子:
5.9
通讯作者:
Sillitoe, Roy V. V.
中科院分区:
文献类型:
--
作者:
Beckinghausen, Jaclyn;Ortiz-Guzman, Joshua;Lin, Tao;Bachman, Benjamin;Leon, Luis E. Salazar E.;Liu, Yu;Heck, Detlef H. H.;Arenkiel, Benjamin R. R.;Sillitoe, Roy V. V.
Thalamo-cortical networks are central to seizures, yet it is unclear how these circuits initiate seizures. We test whether a facial region of the thalamus, the ventral posteromedial nucleus (VPM), is a source of generalized, convulsive motor seizures and if convergent VPM input drives the behavior. To address this question, we devise an in vivo optogenetic mouse model to elicit convulsive motor seizures by driving these inputs and perform single-unit recordings during awake, convulsive seizures to define the local activity of thalamic neurons before, during, and after seizure onset. We find dynamic activity with biphasic properties, raising the possibility that heterogenous activity promotes seizures. Virus tracing identifies cerebellar and cerebral cortical afferents as robust contributors to the seizures. Of these inputs, only microinfusion of lidocaine into the cerebellar nuclei blocks seizure initiation. Our data reveal the VPM as a source of generalized convulsive seizures, with cerebellar input providing critical signals. Single-unit in vivo electrophysiology recordings performed in optogenetic-induced seizing mice and regional pharmacological drug ablation experiments show a role of cerebellar inputs to the thalamus in driving seizures
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影响因子:
25
作者:
Cruikshank, Scott J.;Lewis, Timothy J.;Connors, Barry W.
通讯作者:
Connors, Barry W.
影响因子:
3
作者:
Ruigrok TJ;Teune TM
通讯作者:
Teune TM
DOI:
10.1002/cne.23787
发表时间:
2015-10-15
期刊:
The Journal of comparative neurology
影响因子:
--
作者:
Houck BD;Person AL
通讯作者:
Person AL
影响因子:
11.2
作者:
Kros, Lieke;Rooda, Oscar H. J. Eelkman;Spanke, Jochen K.;Alva, Parimala;van Dongen, Marijn N.;Karapatis, Athanasios;Tolner, Else A.;Strydis, Christos;Davey, Neil;Winkelman, Beerend H. J.;Negrello, Mario;Serdijn, Wouter A.;Steuber, Volker;van den Maagdenberg, Arn M. J. M.;De Zeeuw, Chris I.;Hoebeek, Freek E.
通讯作者:
Hoebeek, Freek E.
影响因子:
14.5
作者:
Keller, Corey J.;Truccolo, Wilson;Cash, Sydney S.
通讯作者:
Cash, Sydney S.