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Chemical Senses Advance Access originally published online on February 21, 2008
Chemical Senses 2008 33(4):357-362; doi:10.1093/chemse/bjm093
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© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org

Regional Differences in Taste Bud Distribution and {alpha}-Gustducin Expression Patterns in the Mouse Fungiform Papilla

Gen-Hua Zhang1, Hai-Yun Zhang1, Shao-Ping Deng2 and Yu-Mei Qin2

1 Sensory Science Laboratory, Department of Biological Science, Changshu Institute of Technology, Changshu 215500, People's Republic of China 2 College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China

Correspondence to be sent to: Gen-Hua Zhang, Sensory Science Laboratory, Department of Biological Science, Changshu Institute of Technology, 99 Nansanhuan Road, Changshu 215500, Jiangsu Province, People's Republic of China. email: zgh{at}cslg.edu.cn


  Abstract

The regional differences between distribution patterns and {alpha}-gustducin expression patterns of the fungiform (FF) taste buds were investigated in the adult mouse, using hematoxylin-eosin staining and immunofluorescence histochemistry on the most anterior region of the tongue (the first millimeter) through the intermediate region of the tongue (the last 1–4 mm). Paraffin sections were prepared from the tip to posterior regions (anterior and intermediate region containing the FF taste buds) of the adult mouse tongue. Results indicate that there were significant regional differences in size and density of taste buds, the cell counts of the single taste bud, and the {alpha}-gustducin–immunoreactive taste buds between the 2 regions. The taste bud had a characteristic onion-like appearance, and the {alpha}-gustducin–immunoreactive cell was spindle shaped with elongated processes extending from the base to the pore of the taste buds. These results provide a detailed insight to better understand regional descriptions of mouse taste bud density and size and {alpha}-gustducin expression with the mouse model.

Key words: {alpha}-gustducin, fungiform papillae, mouse, regional difference, taste bud

Accepted 20 December 2007


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