周期的なAMPと周期的なGMPは,ネズミの脳皮質の反対のニューロン応答を媒介する可能性があります
Science (New York, N.Y.)
|March 7, 1975
まとめ
ノルエピネフリンと循環型AMPは典型的にはピラミッド管ニューロンを阻害し,アセチルコリンと循環型GMPは刺激する. これは,循環型AMPと循環型GMPが,これらの神経伝達物質の細胞内伝達物質の対極として作用することを示唆しています.
科学分野:
- 神経科学は神経科学である.
- セルラー・シグナリング
背景:
- ピラミッド状管の神経細胞は,運動制御に不可欠です.
- ノルエピネフリンとアセチルコリンは,脳皮質における重要な神経伝達物質である.
- 循環型AMPや循環型GMPのようなサイクルヌクレオチドは,細胞内第2の伝達物質として作用する.
研究 の 目的:
- ネズミの脳皮質のピラミッド経路ニューロンに対するノルエピネフリン,アセチルコリン,サイクルAMP,およびサイクルGMPの影響を調査する.
- 循環性AMPと循環性GMPの相互の細胞内第2伝達体としての潜在的な役割を探求する.
主な方法:
- ネズミのピラミッド管ニューロンの電気生理学的識別.
- 神経伝達物質と循環核酸を適用するためのマイクロインソフォレシス.
- 刺激に対するニューロンの反応を記録する.
主要な成果:
- ノルエピネフリンと循環型AMPは,一般的にニューロンの活動を抑制します.
- アセチルコリンとサイクルGMPは,典型的には神経活動を刺激します.
- 循環型AMPと循環型GMPがニューロン応答に与える相反する効果が観察された.
結論:
- 循環型AMPと循環型GMPは,相互の細胞内第2伝達物質として機能する可能性があります.
- ノルエピネフリンの効果は,周期的なAMPによって媒介される可能性があります.
- アセチルコリンの効果は,周期的なGMPによって媒介される可能性があります.
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