Int J Oral Biol.
2015 Dec;40(4):161-166. 10.11620/IJOB.2015.40.4.161.
The Centrifugal Influence on Gustatory Neurons in the Nucleus of the Solitary Tract
- Affiliations
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- 1Department of Physiology and Neuroscience, College of Dentistry, and Research Institute of Oral Science, Gangneung-Wonju National University, Gangneung, Gangwon, Korea. ykcho@gwnu.ac.kr
- KMID: 2133219
- DOI: http://doi.org/10.11620/IJOB.2015.40.4.161
Abstract
- Neuronal activities of taste-responsive cells in the nucleus of the solitary tract (NST) are affected by various physiological factors, such as blood glucose level or sodium imbalance. These phenomena suggest that NST taste neurons are under the influence of neural substrates that regulate nutritional homeostasis. In this study, we reviewed a series of in vivo electrophysiological investigations that demonstrate that forebrain nuclei, such as the lateral hypothalamus or central nucleus of the amygdala, send descending projections and modulate neuronal activity of gustatory neurons in the NST. These centrifugal modulations may mediate plasticity of taste response in the NST under different physiological conditions.
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