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c-Fos Expression in the Nucleus of the Solitary Tract in Response to Salt Stimulation in Rats

Authors
 Yongho Kwak ; Mee-Ra Rhyu ; Bae Hwan Lee ; Min Jee Kwon ; Young Hee Sa ; Sun Joon Bai 
Citation
 Korean Journal of Physiology & Pharmacology, Vol.15(6) : 437~443, 2011 
Journal Title
 Korean Journal of Physiology & Pharmacology 
ISSN
 1226-4512 
Issue Date
2011
Abstract
Salt signals in tongue are relayed to the nucleus of the solitary tract (NST). This signaling is very important to determine whether to swallow salt-related nutrition or not and suggests some implications in discrimination of salt concentration. Salt concentration-dependent electrical responses in the chorda tympani and the NST were well reported. But salt concentration-dependency and spatial distribution of c-Fos in the NST were not well established. In the present study, NaCl signaling in the NST was studied in urethane-anesthetized rats. The c-Fos immunoreactivity in the six different NST areas along the rostral-caudal axis and six subregions in each of bilateral NST were compared between applications of distilled water and different concentrations of NaCl to the tongue of experimental animals. From this study, salt stimulation with high concentration (1.0 M NaCl) induced significantly higher c-Fos expression in intermediate NST and dorsal-medial and dorsal-middle subregions of the NST compared to distilled water stimulation. The result represents the specific spatial distribution of salt taste perception in the NST.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/95044
DOI
10.4196/kjpp.2011.15.6.437
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Physiology
1. 연구논문 > 1. College of Medicine > Yonsei Biomedical Research Center
1. 연구논문 > 1. College of Medicine > Dept. of Anesthesiology and Pain Medicine
Yonsei Authors
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