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Type 1 fibers were characterized by a linear sequence of small, single terminal boutons which made contact mainly with thin dendrites and/or dendritic spines. The second type of axon seen in this material is far less common than the first and it will be referred to as a beaded axon. The other (type 2), was rather less common than the type 1 axon, gave off short, side branches near the axon terminus which formed clusters of 5~10 terminal boutons; these made contact predominately with medium-sized dendrites and/or vesicle-containing profiles. At birth (P-0), biocytin-labeled fibers were found in the same nuclei as in the adult. Neonatal fibers were largely unbranched and many had axons tipped with growth cones. No type 2 terminals were observed. It was not until P14, that axons having morphological characteristics of the adult type 2 fibers could be detected. 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大脳皮質視覚連合野から視床への投射の生後発達
http://hdl.handle.net/10191/38177
http://hdl.handle.net/10191/38177bb0ed1a0-804a-46f1-9f4d-595f795a7ab3
名前 / ファイル | ライセンス | アクション |
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108(4)_283-292.pdf (6.1 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2016-02-10 | |||||
タイトル | ||||||
タイトル | 大脳皮質視覚連合野から視床への投射の生後発達 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | 大脳皮質視覚連合野から視床への投射の生後発達 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Corticothalamic projection | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LS | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LP | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Biocytin | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Postnatal development | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Extrageniculate visual system | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cat | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 皮質視床投射 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 視覚連合野 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 視床後外側核 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | バイオサイチン | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 生後発達 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 非膝状体視覚系 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ネコ | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
その他のタイトル | ||||||
その他のタイトル | Postnatal Development of the Corticothalamic Projections from the Visual Association Cortex | |||||
著者 |
周, 宜興
× 周, 宜興 |
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著者別名 | ||||||
識別子 | 120728 | |||||
識別子Scheme | WEKO | |||||
姓名 | Chou, Yi-Shin | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | One of the major sources of projections to the lateral posterior (LP) complex of the thalamus is the lateral suprasylvian cortex (LS). However, little is known about its postnatal development. In the present study, the maturation of terminal arbors of corticothalamic axons from LS to the LP complex was studied in kittens from at birth to 35 postnatal days and in adult as well using the anterograde tracer biocytin and retrograde tracer wheat germ agglutinin-conjugated horseradish peroxidase (WGA-HRP). In adult cats, corticothalamic projections from the medial bank of LS terminated mainly in lateral and medial divisions of the LP (LPl/LPm) whereas those from the lateral bank were found largely in LPm, the nucleus lateralis medialis (LM) and the suprageniculate nucleus (SG). Within these regions, two principal types of corticothalamic fibers were present. The first, the most frequently encountered type of axon (type 1), established a network of fine fibers that terminated throughout the LP complex. Type 1 fibers were characterized by a linear sequence of small, single terminal boutons which made contact mainly with thin dendrites and/or dendritic spines. The second type of axon seen in this material is far less common than the first and it will be referred to as a beaded axon. The other (type 2), was rather less common than the type 1 axon, gave off short, side branches near the axon terminus which formed clusters of 5~10 terminal boutons; these made contact predominately with medium-sized dendrites and/or vesicle-containing profiles. At birth (P-0), biocytin-labeled fibers were found in the same nuclei as in the adult. Neonatal fibers were largely unbranched and many had axons tipped with growth cones. No type 2 terminals were observed. It was not until P14, that axons having morphological characteristics of the adult type 2 fibers could be detected. These findings demonstrate that significant postnatal changes occur in the synaptology of corticothalamic fibers in the LP complex, particularly with the maturation of type 2 fibers. | |||||
書誌情報 |
新潟医学会雑誌 en : 新潟医学会雑誌 巻 108, 号 4, p. 283-292, 発行日 1994-04 |
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出版者 | ||||||
出版者 | 新潟医学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00290440 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00182415 | |||||
著者版フラグ | ||||||
値 | publisher |