コリン神経内ニューロンは局所回路活動とコカインの条件付けを制御する
Ilana B Witten1, Shih-Chun Lin, Matthew Brodsky
1Department of Bioengineering, Stanford University, Stanford, CA 94305, USA.
まとめ
コリン神経内ニューロンは, nucleus accumbensにあるが,稀であるが,脳回路を強力に制御する. これらのニューロンを静止させることで,コカインの条件付けを遮断し,薬物中毒における重要な役割を明らかにしました.
科学分野:
- 神経科学は神経科学である.
- 細胞生物学 細胞生物学
- 薬理学 薬理学とは
背景:
- コリン神経細胞は広範囲に広がり,多くの脳のプロセスに影響を与えています.
- 薬理学的調節における特異性の欠如は,コレリン神経細胞の役割の理解を制限する.
- 神経回路におけるコリン神経細胞の因果的な役割は不明である.
研究 の 目的:
- 核アキュンベンスのコリン性インターニューロンの機能を調査する.
- これらのニューロンが神経回路に及ぼす特定の制御を決定する.
- これらのニューロンがコカイン依存症に関与しているかを調べるために.
主な方法:
- オプトジェネティクスは,コリン神経内ニューロンの核アクンベンスの直接刺激/阻害のためのものです.
- ニューラル活動を記録するために,in vivoおよびスライス電気生理学.
- コカインコンディショニングを含む,自由に動く哺乳類の行動パラダイム.
主要な成果:
- コリン神経内ニューロンは,局所ニューロンの<1%であるにもかかわらず,核アクンベンスの回路活動に支配的なコントロールを行います.
- これらのニューロンはコカインによって活性化されます.
- コカインに誘発されたコレニルゲン内ニューロン活動を静止させることで,コカインの条件付けがブロックされました.
結論:
- ニューラル回路を調節する上で重要な役割を果たします.
- これらのニューロンは,コカイン依存症の発達に不可欠です.
- これらの特定のニューロンをターゲットにすることで,中毒に対する新しい治療戦略を提供することができます.
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