トゥーベル核のソマトスタチンニューロンによる栄養の調節

Sarah Xinwei Luo¹, Ju Huang², Qin Li^1,3

¹Singapore Bioimaging Consortium, Agency for Science Technology and Research (A*STAR), Singapore 138667.

Science (New York, N.Y.)

|July 7, 2018

まとめ

突核 (TN) のソマトスタチン (SST) ニューロンは,マウスの食事行動を調節する. これらのニューロンを活性化すると食欲が増加し抑制すると食欲が低下し食欲のコントロールに関する新たな洞察が得られます

科学分野:

神経科学
内分泌学
生理学

背景:

結核 (TN) は神経変性疾患に関与する研究されていない脳領域である.
ソマトスタチン (SST) ニューロンは,様々な生理学的プロセスの主要な調節体です.

研究の目的:

核ソマトスタチン (TN-SST) ニューロンの栄養行動の調節における役割を調査する.
TN-SSTニューロン活動に対する神経回路とホルモンの影響を明らかにする.

主な方法:

ネズミのモデルを使ってニューロンの活動と食事の行動を研究した.
特定のニューロン集団 (TN-SSTニューロン) を活性化または抑制するための技術.
ストリア・ターミナリスのパラベントリキュラー核とベッド核へのニューロンの投影を調査した.

主要な成果:

TN-SSTニューロンは飢えとグリリンによって活性化されます
TN-SSTニューロンの活性化は栄養を促し,抑制はそれを減少させる.
TN-SSTニューロンの消去は,食物の摂取量と体重増加を減少させます.

結論:

TN-SSTニューロンは新しい酸素生成 (食欲を刺激する) 経路を表しています.
この発見は食欲の調節に基づく神経メカニズムに新たな視点を与えています
TN-SSTニューロン機能を理解すると,食欲障害の治療対象となる可能性があります.

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