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.
复制标题

DOI:
10.1038/s42003-023-05100-w
复制
发表时间:
2023-07-15
影响因子:
5.9
通讯作者:
Sillitoe, Roy V. V.
Sillitoe, Roy V. V.
中科院分区:
生物学2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.

文献摘要

参考文献

相似文献

丘脑-皮层网络是癫痫发作的中心,但目前还不清楚这些回路如何启动癫痫发作。我们测试丘脑的面部区域,腹后内侧核(VPM),是否是全身性惊厥运动发作的来源,以及会聚VPM输入是否驱动行为。为了解决这个问题,我们设计了一个体内光遗传学小鼠模型,通过驱动这些输入来引发惊厥运动发作,并在清醒时进行单单位记录,惊厥发作,以确定在癫痫发作之前,期间和之后丘脑神经元的局部活动。我们发现动态活动具有双相性,提高了异质性活动促进癫痫发作的可能性。病毒追踪确定小脑和大脑皮层传入神经是癫痫发作的有力贡献者。在这些输入中,只有利多卡因微量输注到小脑核中阻断癫痫发作。我们的数据显示VPM是全身性惊厥发作的一个来源,小脑输入提供了关键信号。在光遗传学诱导的癫痫发作小鼠中进行的单单位体内电生理记录和区域药理学药物消融实验表明,小脑输入丘脑在驱动癫痫发作中的作用
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
DOI: 10.1038/nn1861
发表时间: 2007-04-01
影响因子: 25
作者:
Cruikshank, Scott J.;Lewis, Timothy J.;Connors, Barry W.
通讯作者: Connors, Barry W.
DOI: 10.3389/fnsys.2014.00023
发表时间: 2014
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
DOI: 10.1002/ana.24399
发表时间: 2015-06
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.
DOI: 10.1093/brain/awq112
发表时间: 2010-06-01
期刊: BRAIN
影响因子: 14.5
作者:
Keller, Corey J.;Truccolo, Wilson;Cash, Sydney S.
通讯作者: Cash, Sydney S.