阻害性GABAergic神経末端は,焦点性の部位で減少する
Science (New York, N.Y.)
|July 13, 1979
まとめ
類人猿のでは,発作領域のガンマ-アミノバターリック酸 (GABA) 神経端末の有意な減少が示されています. このGABAergic阻害の喪失は,皮質ニューロンのてんかん活性を引き起こす可能性があります.
科学分野:
- 神経科学は神経科学である.
- 神経化学 神経化学とは
背景:
- ガンマアミノバター酸 (GABA) は,哺乳類の中央神経系における主要な抑制性神経伝達物質である.
- グルタミン酸デカルボキシラーゼ (GAD) は,GABAを合成する酵素です.
研究 の 目的:
- GABAergic神経末端の分布を正常な猿との猿の感覚運動皮質で調査する.
- 発作の焦点でGABAergic端末に変化があるかどうかを判断する.
主な方法:
- 免疫細胞化学は,GAD陽性神経末端を局所化するために使用されました.
- 神経端末の超構造分析が行われました.
- 類人猿は,アルミナゲルを皮質に塗布することで,状態に誘導された.
主要な成果:
- GABAergic神経端末は,正常な猿の感覚運動皮質のすべての層にわたって発見されました.
- これらの端末は,アスピノースと稀に脊椎の星状ニューロンから発生したようです.
- GAD陽性神経末端の有意な数値的減少は,性猿の発作焦点で観察されました.
結論:
- この研究は,性猿の発作焦点におけるGABAergic阻害シナプスの機能的喪失を示しています.
- この抑制の喪失は,皮質のピラミダニューロンで観察されるの活動に寄与する可能性があります.
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