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Control of Eating Behavior Using a Novel Feedback System
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視床下部の双方向の電磁制御は,栄養と代謝を調節する
Sarah A Stanley1, Leah Kelly1, Kaamashri N Latcha1
1Laboratory of Molecular Genetics, Rockefeller University, New York, New York 10065, USA.
Nature
|March 24, 2016
まとめ
この研究は脳活動に 精密な制御を可能にする 遠隔神経調節のための 非侵襲的な方法を紹介しています このテクニックは 脳が血糖を制御し マウスの食事行動を 調べるために使われました
科学分野:
- 神経科学
- 生理学
- バイオテクノロジー
背景:
- 神経活動に対する正確な制御は 脳機能を理解するために不可欠です
- 既存の方法では 侵襲的な処置が必要で 時間的特異性がないことが多いのです
- 中枢神経系の代謝過程の制御を調査するには,高度なツールが必要です.
研究 の 目的:
- 臨時神経の活性化と抑制のための非侵襲的システムを開発する.
- 特定のニューラル集団のグルコース・ホメオスタシスと食事の行動における役割を研究する.
- 磁気や電波制御による ニューラル・モジュレーションの有用性を証明する
主な方法:
- 改変されたトランジント受容体ポテンシャルバニロイド1 (TRPV1) チャンネルのクレア依存表現を利用した.
- GFPタグされたフェリチンをTRPV1にリモートアクティベーション/阻害するために,カメリッドのGFP抗体を使用した.
- グルコースキナーゼを投与されたクレーマウスの中腹部下垂体にあるグルコース感知神経を標的とした.
- ラジオ波や磁場を使って 遠隔神経刺激をします
主要な成果:
- 血糖感受性ニューロンの神経活性化により,血糖とグルカゴンが増加し,インスリンが減少し,栄養が刺激された.
- 神経阻害は血糖を低下させ,インスリンを増加させ,栄養を抑制しました.
- 臓ホルモンが 血糖と行動の制御を 中央神経系に媒介することを示した.
結論:
- 開発されたシステムは 非侵襲的で一時的に制御された神経調節を可能にします
- この方法は,中枢神経系がグルコース・ホメオスタシスと栄養を制御する新しい洞察を提供します.
- この技術は永久性インプラントの必要性を回避し,神経プロセスや細胞タイプを調節する研究に広く適用できます.
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