統合的な in-vivo と ex-vivo マッピングによる上部縦断系の解剖学的洞察
Laura Vavassori1,2, François Rheault3, Paolo Avesani4
1Department of Neurosurgery, "S. Chiara" University-Hospital, Azienda Provinciale per i Servizi Sanitari, Trento, Italy. laura.vavassori@unitn.it.
Communications biology
|September 1, 2025
まとめ
この研究は,高度なイメージングと解剖を用いて脳の上位縦断系 (SLS) をマッピングします. ホワイトマター経路における 階層的・深度依存の接続性といった 組織的原理を明らかにします
科学分野:
- 神経科学
- 人 の 脳 の 解剖
- コネクトミックス
背景:
- ホワイトマター (WM) の組織を理解することは 脳の機能に不可欠です
- 脳の接続性の重要な構成要素です 脳の接続性の重要な構成要素です
研究 の 目的:
- SLSの包括的で解剖学的に強化された特徴を提供するためです.
- 精密なマッピングのために in-vivo トラクトグラフィと ex-vivo 解剖を統合する.
- 前頭皮質の背面結合の組織的原理を特定する.
主な方法:
- データを駆動した皮質対皮質のペアリングアプローチを用いた.
- 39人の健康な参加者の前頭皮質の背面関連接続性を再構築した.
- 統合された in-vivo トラクトグラフィーと ex-vivo 解剖を同じ放射線領域で行う.
主要な成果:
- 45のSLS成分が特定され,特徴づけられ,そのうち22はex-vivo解剖で検証された.
- SLS内の中側と背中と腹部の階層と深度依存の組織を明らかにした.
- 流線長と皮質からの距離との正の相関が確認された (r=0.689,p<0.001).
結論:
- 古典的な定義を超えた 脳の接続性の分散と統合された見方を強調しています
- 将来の人口ベースのWMアトラスのための堅固な解剖学的基礎を提供します.
- 脳の経路を正確にマッピングするために,in-vivoとex-vivoの方法を組み合わせることの重要性を強調しています.
さらに関連する動画
06:05Modification of a Colliculo-thalamocortical Mouse Brain Slice, Incorporating 3-D printing of Chamber Components and Multi-scale Optical Imaging
Published on: September 18, 2015
8.4K
15:263D Modeling of the Lateral Ventricles and Histological Characterization of Periventricular Tissue in Humans and Mouse
Published on: May 19, 2015
14.2K
関連する概念動画
01:16Spinal Cord: Cross-sectional Anatomy
2.4K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
2.4K
01:20Anatomy of the Brain: Major Regions
6.5K
The brain is the most complex organ in the human body. It consists of four main parts: the cerebrum, diencephalon, cerebellum, and brainstem.
The cerebrum is the largest section of the brain and divides into left and right hemispheres, separated by a deep fissure. The cerebral outer layer of grey matter — the cerebral cortex — comprises elevations called gyri and shallow groves called sulci. The inner portion of white matter includes long nerve fibers known as axons, which connect...
The cerebrum is the largest section of the brain and divides into left and right hemispheres, separated by a deep fissure. The cerebral outer layer of grey matter — the cerebral cortex — comprises elevations called gyri and shallow groves called sulci. The inner portion of white matter includes long nerve fibers known as axons, which connect...
6.5K
01:23Anatomy of the Intestines
73.8K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
73.8K