桥梁葡萄糖代谢和人类皮质的内在功能组织
Bin Wan1,2,3, Valentin Riedl4,5, Gabriel Castrillon4,5
1Lise Meitner Research Group Cognitive Neurogenetics, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany. binwan@cbs.mpg.de.
Communications biology
|February 10, 2026
概括
大脑连接组织优化能源使用. 功能梯度解释了大脑的能量消耗,更强的连接更有影响力,表明有效的代谢大脑功能.
科学领域:
- 神经科学是一个神经科学.
- 脑部成像 脑部成像
- 代谢成像 - 代谢成像
背景情况:
- 人类大脑需要不断的能量来实现最佳功能.
- 了解大脑组织和能量消耗之间的联系至关重要.
研究的目的:
- 研究低维功能连接和大脑能量消耗之间的关系.
- 要确定功能梯度是否解释区域大脑能量差异.
主要方法:
- 使用静止状态功能磁共振成像 (rs-fMRI) 进行功能连接.
- 雇佣的氧葡萄糖正子发射断层扫描 (FDG-PET) 用于大脑能量消耗.
- 分析了功能梯度来解释能源支出地图的差异.
主要成果:
- 增加大脑组织尺寸 (功能梯度) 导致能量消耗的变化更大.
- 更强大的功能连接与区域能源差异更为密切相关.
- 拓模型显著优于随机配置,表明了能源优化的特定组织.
结论:
- 功能连接的空间组织系统地与人脑中最佳的能量消耗有关.
- 这项研究为大脑功能和组织的代谢基础提供了新的见解.
相关概念视频
Intrinsically Disordered Proteins
19.6K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
19.6K
What is Metabolism?
132.4K
Overview
132.4K
Design Example: Strain Gauge Bridge or Wheatstone Bridge
1.0K
The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
1.0K
Wheatstone Bridge
1.2K
An ohmmeter is a resistance-measuring device. It works by applying a voltage to a resistor of unknown resistance and measuring the current across the resistor. The resistance value is deduced using Ohm's law. Usually, the standard configuration of an ohmmeter comprises a voltmeter or an ammeter. However, such configurations are limited in accuracy because the meters alter the voltage applied to the resistor and the current that flows through it.
Thus, for accurate resistance measurements, a...
Thus, for accurate resistance measurements, a...
1.2K
Bridge rectifier
1.6K
The bridge rectifier is essential in electronics for efficiently converting alternating current (AC) to direct current (DC). Comprised of four diodes configured in a bridge layout, this rectifier effectively processes both the positive and negative halves of the AC waveform, making it superior to half-wave and full-wave center-tapped rectifiers in terms of voltage regulation and output stability.
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
1.6K
Cross-bridge Cycle
123.0K
As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
123.0K


