2011 Fiscal Year Final Research Report
The study on neuronal bases of taste cognition in gustatory neurons defined by genetic tracing
| Project/Area Number |
21592362
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional basic dentistry
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| Research Institution | Hiroshima University |
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Principal Investigator |
SUGITA Makoto 広島大学, 大学院・医歯薬学総合研究科, 教授 (50235884)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 口腔生理学 / 味覚 / ニューロン |
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| Research Abstract |
To gain insight into how taste recognition is accomplished in the brain, we applied a genetic approach to delineate the neuronal circuitries of sweet and bitter taste by selectively expressing the transneuronal tracer, WGA-DsRed, in either bitter-or sweet-responsive taste receptor cells in mice, and by visualizing the spatial distribution of neurons in the brain, which were labeled by WGA-DsRed originating from each class of taste receptor cells. Locations of the WGA-DsRed-labeled neurons revealed segregation of bitter-and sweet-inputs in the gustatory cortex. Combination of genetic tracing with electrophysiological recordings and immunohistochemistry enables to functionally define the neurons that process specific taste information and that integrate taste and the other viscerosensory information.
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Research Products
(6 results)
