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アイテム
思春期マウスにおける不正咬合はAgRPシグナルを介して認識行動を低下させる
http://hdl.handle.net/10232/0002000005
http://hdl.handle.net/10232/000200000590f1e2d0-4d65-4a3c-bfd5-f75f47a487f6
| 名前 / ファイル | ライセンス | アクション |
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Diss_楠元_淳也_ISK707_2023 (9.99 MB)
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Abstract_楠元_淳也_4518800041_2023 (221 KB)
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Result_KUSUMOTO_Junya_isk_707.pdf (136 KB)
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Comments_KUSUMOTO_Junya_isk_707.pdf (67 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2023-09-26 | |||||
| タイトル | ||||||
| タイトル | Malocclusion Impairs cognitive behavior via AgRP signaling in adolescent mice | |||||
| 言語 | en | |||||
| タイトル | ||||||
| タイトル | 思春期マウスにおける不正咬合はAgRPシグナルを介して認識行動を低下させる | |||||
| 言語 | ja | |||||
| 著者 |
楠元, 淳也
× 楠元, 淳也 |
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| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | adolescent | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | agouti-related protein | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | arcuate nucleus of hypothalamus | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | cognitive dysfunction | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | malocclusion | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | novel object recognition test | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
| 資源タイプ | doctoral thesis | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 要約(Abstract) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Introduction: Occlusal disharmony induced by deteriorating oral health conditions, such as tooth loss and decreased masticatory muscle due to sarcopenia, is one of the causes of cognitive impairment. Chewing is an essential oral function for maintaining cognitive function not only in the elderly but also in young people. Malocclusion is an occlusal disharmony that commonly occurs in children. The connection between a decline in cognitive function and malocclusion in children has been shown with chronic mouth breathing, obstructive sleep apnea syndrome, and thumb/digit sucking habits. However, the mechanism of malocclusion-induced cognitive decline is not fully understood. We recently reported an association between feeding-related neuropeptides and cognitive decline in adolescent mice with activity-based anorexia. The aim of the present study was to assess the effects of malocclusion on cognitive behavior and clarify the connection between cognitive decline and hypothalamic feeding-related neuropeptides in adolescent mice with malocclusion. Methods: Four-week-old mice were randomly assigned to the sham-operated solid diet-fed (Sham/solid), sham-operated powder diet-fed (Sham/powder), or malocclusion-operated powder diet-fed (Malocclusion/powder) group. We applied composite resin to the mandibular anterior teeth to simulate malocclusion. We evaluated cognitive behavior using a novel object recognition (NOR) test, measured hypothalamic feeding-related neuropeptide mRNA expression levels, and enumerated c-Fos-positive cells in the hypothalamus 1 month after surgery. We also evaluated the effects of central antibody administration on cognitive behavior impairment in the NOR test. Results: The NOR indices were lower and the agouti-related peptide (AgRP) mRNA levels and number of c-Fos-positive cells were higher in the malocclusion/powder group than in the other groups. The c-Fos-positive cells were also AgRP-positive. We observed that the central administration of anti-AgRP antibody significantly increased the NOR indices. Discussion: The present study suggests that elevated cerebral AgRP signaling contributes to malocclusion-induced cognitive decline in adolescents, and the suppression of AgRP signaling can be a new therapeutic target against cognitive decline in occlusal disharmony. |
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| 言語 | en | |||||
| 要約(Abstract) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Junya Kusumoto, Koji Ataka, Haruki Iwai, Yasuhiko Oga, Keita Yamagata, Kanako Marutani, Takanori Ishikawa, Akihiro Asakawa and Shouichi Miyawaki Malocclusion impairs cognitive behavior via AgRP signaling in adolescent mice Frontiers in Neuroscience 17:1156523. https://doi.org/10.3389/fnins.2023.1156523 |
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| 言語 | en | |||||
| 作成日 | ||||||
| 日付 | 2023-07-07 | |||||
| 日付タイプ | Collected | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| ファイル（説明） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 博士論文全文, 博士論文要旨, 最終試験結果の要旨, 論文審査の要旨 | |||||
| 言語 | ja | |||||
| 公開者・出版者 | ||||||
| 出版者 | Frontiers | |||||
| 言語 | en | |||||
| 公開者・出版者 | ||||||
| 出版者 | 鹿児島大学 | |||||
| 言語 | ja | |||||
| 備考 | ||||||
| 言語 | ja | |||||
| 値 | 【指導教員:宮脇正一】 | |||||
| date.appl | ||||||
| 値 | 【学位申請日】2023-05-10 | |||||
| 学位名 | ||||||
| 言語 | ja | |||||
| 学位名 | 博士(歯学) | |||||
| 学位名 | ||||||
| 言語 | en | |||||
| 学位名 | Doctor of Philosophy in Dental Science | |||||
| 学位授与機関 | ||||||
| 学位授与機関識別子Scheme | kakenhi | |||||
| 学位授与機関識別子 | 17701 | |||||
| 言語 | ja | |||||
| 学位授与機関名 | 鹿児島大学 | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 2023-07-19 | |||||
| 学位授与番号 | ||||||
| 学位授与番号 | 甲総研第707号 | |||||
