オキシトシン依存性不安行動のための皮質回路
Kun Li1, Miho Nakajima1, Ines Ibañez-Tallon1
1Laboratory of Molecular Biology, Howard Hughes Medical Institute, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.
Cell
|September 20, 2016
まとめ
オキシトシン受容体内ニューロン (OxtrINs) は,抗不安因子であるコルチコトロピン放出ホルモン結合タンパク質 (CRHBP) を発現することにより,雄性マウスの不安を調節する. これは男女ともに 社会的・感情的な行動の 分子機構を明らかにしています
科学分野:
- 神経科学
- 行動内分泌学
- 分子精神医学
背景:
- 人間の社会的および感情的障害は 性別に基づく流行の違いを示す.
- オキシトシン受容体内ニューロン (OxtrINs) は以前,女性の社会性行動を調節することが示されました.
研究 の 目的:
- 男性の不安に関連する行動におけるオクストリンの役割を調査する.
- 社会的および感情的規制におけるオクストリン機能の基礎となる分子機構を特定する.
- オキシトシンとストレス経路による 神経回路調節における 性別特有の違いを探求する.
主な方法:
- 男性のマウスモデルを使って 不安に関する行動を研究しました
- OxtrINsにおけるコルチコトロピン放出ホルモン結合タンパク質 (CRHBP) の発現を調査した.
- 中部前頭皮質 (mPFC) の経路におけるポストシナプス活性に対するCRHBPの影響を調査した.
主要な成果:
- オキシトシンが雄性マウスの不安に関連する行動を制御することが判明しました.
- CRHBPは,コルチコトロピン放出ホルモン (CRH) のアンタゴニストであり,OxtrINsで特異的に発現する.
- オクストリンにおけるCRHBPの生成は,男性におけるピラミッド細胞の活性化のCRH誘発を阻害し,抗不安効果をもたらした.
結論:
- オクストリンは,男女の社会的,感情的行動の調整に不可欠です.
- オキシトシン (OXT) とCRHへの反応をmPFC回路で調整する.
- OXT/OXTRとCRHBP/CRH経路に関するさらなる研究は,社会的および感情的障害に対するジェンダー特有の治療法の開発に不可欠です.
関連する概念動画
Neurotransmitters
3.2K
Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
3.2K
Anxiety: Overview
1.2K
Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
1.2K
Functional Brain Systems: Limbic System
8.6K
The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
8.6K
Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla
3.2K
The sympathetic pathways of the collateral ganglia and adrenal medulla serve unique but interconnected roles in the sympathetic response.
Collateral Ganglia
Sympathetic preganglionic axons reach the collateral ganglia along the route of splanchnic nerves. These nerves bypass the sympathetic trunk and communicate with sympathetic postganglionic neurons housed in the prevertebral ganglia. These ganglia supply the organs of the abdominopelvic cavity.
The greater splanchnic nerve, formed by the...
Collateral Ganglia
Sympathetic preganglionic axons reach the collateral ganglia along the route of splanchnic nerves. These nerves bypass the sympathetic trunk and communicate with sympathetic postganglionic neurons housed in the prevertebral ganglia. These ganglia supply the organs of the abdominopelvic cavity.
The greater splanchnic nerve, formed by the...
3.2K
Hypothalamic-Pituitary Axis
69.3K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
69.3K


