Three-dimensional reconstruction of root cells and interdental cells in the rat inner ear by serial section scanning electron microscopy

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Three-dimensional reconstruction of root cells and interdental cells in the rat inner ear by serial section scanning electron microscopy

Persistent ID (NDL): info:ndljp/pid/10993760

Material type: 博士論文

Author: Shodo, Ryusuke

Publisher: 新潟大学

Publication date: 2017-09-20

Material Format: Digital

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Name of awarding university/degree: 新潟大学,博士（医学）

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Note (General)：: In the cochlea, a high K^+ environment in the endolymph is essential for the maintenance of normal hearing function, and the transport of K^+ ions thr...

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Material Type: 博士論文
Title: Three-dimensional reconstruction of root cells and interdental cells in the rat inner ear by serial section scanning electron microscopy
Author/Editor: Shodo, Ryusuke
Publication, Distribution, etc.: 新潟大学
Publication Date: 2017-09-20
Publication Date (W3CDTF): 2017-09-20
Alternative Title: Three-dimensional reconstruction of root cells and interdental cells in the rat inner ear by serial section scanning electron microscopy
薄連続切片走査型電子顕微鏡法によるラット内耳の根細胞および歯間細胞の立体再構築
Degree grantor/type: 新潟大学
Date Granted: 2017-09-20
Date Granted (W3CDTF): 2017-09-20
Dissertation Number: 甲第4358号
Degree Type: 博士（医学）
Conferring No. (Dissertation): 甲第4358号
Text Language Code: eng
Note (General): In the cochlea, a high K^+ environment in the endolymph is essential for the maintenance of normal hearing function, and the transport of K^+ ions through gap junctions of the cochlear epithelium is thought to play an important role in endolymphatic homeostasis. The aim of the present study was to demonstrate the three-dimensional (3D) ultrastructure of spiral ligament root cells and interdental cells, which are located at both ends of the gap junction system of the cochlea epithelium. Serial semi-thin sections of plastic-embedded rat cochlea were mounted on glass slides, stained with uranyl acetate and lead citrate, and observed by scanning electron microscopy (SEM) using the backscattered electron (BSE) mode. 3D reconstruction of BSE images of serial sections revealed that the root cells were linked together to form a branched structure like an elaborate “tree root” in the spiral ligament. The interdental cells were also connected to each other, forming a comb-shaped cellular network with a number of cellular strands in the spiral limbus. Furthermore, TEM studies of ultra-thin sections revealed the rich presence of gap junctions in both root cells and interdental cells. These findings suggest the possibility that both root cells and interdental cells contribute to K^+ circulation as the end portion of the epithelial cell gap junction system of the cochlea.
学位の種類: 博士（医学）. 報告番号: 甲第4358号. 学位記番号: 新大院博（医）甲第771号. 学位授与年月日: 平成29年9月20日
Biomedical Research. 2017, 38(4), 239-248.
新大院博（医）甲第771号
開始ページ : 1
終了ページ : 15
DOI: info:doi/10.2220/biomedres.38.239
https://doi.org/info:doi/10.2220/biomedres.38.239
Persistent ID (NDL): info:ndljp/pid/10993760
https://dl.ndl.go.jp/pid/10993760
Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2017-12-04T02:02:48+09:00
Date Created (W3CDTF): 2019-08-05
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
Availability of remote photoduplication service: 可
Periodical Title (URI): http://hdl.handle.net/10191/48152
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
https://dl.ndl.go.jp