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

Content Provider	Springer Nature Link
Author	Domon, Takari Fukui, Ami Taniguchi, Yumi Suzuki, Reiko Takahashi, Shigeru Yamamoto, Tsuneyuki Wakita, Miru
Copyright Year	2004
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-µm 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.
Starting Page	119
Ending Page	128
Page Count	10
File Format	PDF
ISSN	03402061
Journal	Anatomy and Embryology
Volume Number	209
Issue Number	2
e-ISSN	14320568
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-11-19
Publisher Place	Berlin/Heidelberg
Access Restriction	Subscribed
Subject Keyword	Odontoclasts Chinook salmon Cell fusion Number of nuclei Three-dimensional reconstruction
Content Type	Text
Resource Type	Article
Subject	Anatomy Cell Biology Developmental Biology Embryology

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