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Scale calcification in the goldfish in vitro : histological and quantitative analysis

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タイトル: Scale calcification in the goldfish in vitro : histological and quantitative analysis
著者: Ogawa, Nobuhiro 著作を一覧する
Ura, Kazuhiro 著作を一覧する
Takagi, Yasuaki 著作を一覧する
キーワード: Biomineralization
Carasssius auratus
Goldfish
In vitro calcification
Scale regeneration
発行日: 2010年 3月
出版者: Springer Japan
誌名: Fisheries Science
巻: 76
号: 2
開始ページ: 189
終了ページ: 198
出版社 DOI: 10.1007/s12562-009-0197-7
抄録: The external layer of a teleost fish scale is composed of type I collagen, an amorphous matrix substance and hydroxyapatite crystals. Calcification of this layer can be inhibited in the scale-regenerating process under a calcium and phosphate deficient (CaDPD) conditions, and can be facilitated by incubation in physiological saline. The aim of this study was to evaluate this model of calcification using histological and quantitative analysis in order to promote further understanding of the mechanism of calcification in fish scales. We found that the external layer of the scales produced under a CaDPD condition contained more densely-aligned collagen fibrils with a small amount of the amorphous matrix substance. The CaDPD scale contained only one-third of the amount of calcium and phosphate present in the control fish. After 4-hour incubation, a 2-3 fold increase in calcium content and a 1.5-fold increase in phosphate content were observed. Calcification proceeded in the external layer, and mineral deposits grew only in the electron-dense matrix substance. We conclude that this model would be suitable to study the early process of fish scale calcification that occurs in the non-collagenous substance. The electron-dense substance may contain key molecules that promote calcification.
Rights: The original publication is available at www.springerlink.com
©2010 公益社団法人日本水産学会 The Japanese Society of Fisheries Science
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/43065
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 都木 靖彰

 

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