Title |
Heterogeneity of tremor mechanisms assessed by tremor-related cortical potential in mice
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Published in |
Molecular Brain, January 2015
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DOI | 10.1186/s13041-015-0093-2 |
Pubmed ID | |
Authors |
Young-Gyun Park, Jee Hyun Choi, Chungki Lee, Sehyun Kim, Youngsoo Kim, Ki-Young Chang, Sun Ha Paek, Daesoo Kim |
Abstract |
BackgroundIdentifying a neural circuit mechanism that is differentially involved in tremor would aid in the diagnosis and cure of such cases. Here, we demonstrate that tremor-related cortical potential (TRCP) is differentially expressed in two different mouse models of tremor.ResultsHybrid tremor analysis of harmaline-induced and genetic tremor in mice revealed that two authentic tremor frequencies for each type of tremor were conserved and showed an opposite dependence on CaV3.1 T-type Ca2+ channels. Electroencephalogram recordings revealed that ¿1¿/¿;¿1G-/- mice double-null for the GABA receptor ¿1 subunit (Gabra1) and CaV3.1 T-type Ca2+ channels (Cacna1g), in which the tremor caused by the absence of Gabra1 is potentiated by the absence of Cacna1g, showed a coherent TRCP that exhibited an onset that preceded the initiation of behavioral tremor by 3 ms. However, harmaline-induced tremor, which is known to be abolished by ¿1G¿/¿, showed no TRCP.ConclusionsOur results demonstrate that the ¿1¿/¿;¿1G¿/¿ double-knockout tremor model is useful for studying cortical mechanisms of tremor. |
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Science communicators (journalists, bloggers, editors) | 1 | 50% |
Mendeley readers
Geographical breakdown
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Iran, Islamic Republic of | 1 | 5% |
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Demographic breakdown
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Researcher | 5 | 26% |
Student > Master | 2 | 11% |
Student > Bachelor | 1 | 5% |
Student > Doctoral Student | 1 | 5% |
Other | 0 | 0% |
Unknown | 5 | 26% |
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Pharmacology, Toxicology and Pharmaceutical Science | 2 | 11% |
Agricultural and Biological Sciences | 2 | 11% |
Psychology | 1 | 5% |
Other | 1 | 5% |
Unknown | 4 | 21% |