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Odontoclasts in the Chinook salmon differ from mammalian odontoclasts by exhibiting a great proportion of cells with high nuclei number

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/43992

Title: Odontoclasts in the Chinook salmon differ from mammalian odontoclasts by exhibiting a great proportion of cells with high nuclei number
Authors: Domon, Takanori Browse this author →KAKEN DB
Fukui, Ami Browse this author
Taniguchi, Yumi Browse this author
Suzuki, Reiko Browse this author
Takahashi, Shigeru Browse this author →KAKEN DB
Yamamoto, Tsuneyuki Browse this author
Wakita, Minoru Browse this author
Keywords: Odontoclasts
Chinook salmon
Cell fusion
Number of nuclei
Three-dimensional reconstruction
Issue Date: 2004
Publisher: Springer
Journal Title: Anatomy and Embryology
Volume: 209
Issue: 2
Start Page: 119
End Page: 128
Publisher DOI: 10.1007/s00429-004-0437-7
PMID: 15597190
Abstract: Odontoclasts resorbing teeth are multinucleated cells. Previously, the authors have investigated the distribution of number of nuclei per human odontoclast and showed that the mean number of nuclei per cell is 5.3, the median is 4, and 93.8% of cells have 10 or fewer nuclei. Teleost odontoclasts have features similar to those of mammals; however, the distribution of number of nuclei per cell remains unknown. The present study aimed to examine the distribution of number of nuclei per odontoclast in a teleost fish, Chinook salmon, Oncorhynchus tshawytscha (Walbaum), and to clarify the difference of number of nuclei in odontoclasts between Chinook salmon and humans. The maxillae and mandibles of Chinook salmon were fixed, decalcified, and embedded in Epon 812. Specimens were serially sectioned into 0.5- m semithin sections and examined by light microscopy. Cells possessing a brush border adjacent to a resorptive lacuna were identified as odontoclasts, and 246 odontoclasts were investigated to determine the distribution of nuclei per cell. The mean number of nuclei per cell was 21.8 and the median was 17; only 24.4% of odontoclasts had 10 or fewer nuclei, and 95.5% had 50 or fewer nuclei. These results suggest that the range for the number of nuclei per odontoclast in Chinook salmon is greater than that in humans.
Rights: The original publication is available at www.springerlink.com
Type: article (author version)
URI: http://hdl.handle.net/2115/43992
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 土門 卓文

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