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- W2126242010 abstract "Abstract Cerebellar function is regulated by cholinergic mossy fiber inputs that are primarily derived from the medial vestibular nucleus ( MVN ) and prepositus hypoglossi nucleus ( PHN ). In contrast to the growing evidence surrounding cholinergic transmission and its functional significance in the cerebellum, the intrinsic and synaptic properties of cholinergic projection neurons ( C h PN s) have not been clarified. In this study, we generated choline acetyltransferase ( C h AT )‐td T omato transgenic rats, which specifically express the fluorescent protein td T omato in cholinergic neurons, and used them to investigate the response properties of C h PN s identified via retrograde labeling using whole‐cell recordings in brainstem slices. In response to current pulses, C h PN s exhibited two afterhyperpolarisation ( AHP ) profiles and three firing patterns; the predominant AHP and firing properties differed between the MVN and PHN . Morphologically, the C h PN s were separated into two types based on their soma size and dendritic extensions. Analyses of the firing responses to time‐varying sinusoidal current stimuli revealed that C h PN s exhibited different firing modes depending on the input frequencies. The maximum frequencies in which each firing mode was observed were different between the neurons that exhibited distinct firing patterns. Analyses of the current responses to the application of neurotransmitter receptor agonists revealed that the C h PN s expressed (i) AMPA ‐ and NMDA ‐type glutamate receptors, (ii) GABA A and glycine receptors, and (iii) muscarinic and nicotinic acetylcholine receptors. The current responses mediated by these receptors of MVN C h PN s were not different from those of PHN C h PN s. These findings suggest that C h PN s receive various synaptic inputs and encode those inputs appropriately across different frequencies." @default.
- W2126242010 created "2016-06-24" @default.
- W2126242010 creator A5010776860 @default.
- W2126242010 creator A5014321400 @default.
- W2126242010 creator A5043840252 @default.
- W2126242010 creator A5053556602 @default.
- W2126242010 date "2014-03-05" @default.
- W2126242010 modified "2023-10-04" @default.
- W2126242010 title "The vestibulo- and preposito-cerebellar cholinergic neurons of a ChAT-tdTomato transgenic rat exhibit heterogeneous firing properties and the expression of various neurotransmitter receptors" @default.
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- W2126242010 doi "https://doi.org/10.1111/ejn.12509" @default.
- W2126242010 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24593297" @default.
- W2126242010 hasPublicationYear "2014" @default.
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