微生物组 - 神经退行界面:机制,证据和未来方向
Lilia Böckels1,2, Daniel Alexa1,2, Dorin Cristian Antal1,3
1University of Medicine and Pharmacy "Grigore T. Popa", 16 Universității Street, 700115 Iași, Romania.
Cells
|January 28, 2026
概括
肠道微生物群影响肠-大脑轴,影响神经退行性疾病. 微生物失衡,或失调,通过免疫和代谢信号通路影响中枢神经系统.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 肠道微生物群是肠-大脑轴的关键调节者,影响神经,免疫和代谢平衡.
- 肠道微生物组成和功能的障碍越来越多地与神经退行性疾病 (NDs) 相关.
- 肠道失生症涉及减少多样性,减少有益细菌,更多的促炎细菌,影响肠道透性和全身免疫力.
研究的目的:
- 综合审查肠道微生物群与中枢神经系统 (CNS) 之间的双向通信.
- 确定分子,免疫和代谢机制,将肠道微生物群与神经退行联系起来.
- 整合人类研究结果,了解微生物因素如何影响神经化学平衡,免疫激活和血脑屏障完整性.
主要方法:
- 综合最近的人类研究的文献综述.
- 对分子,免疫和代谢信号通路的分析.
- 专注于证据将肠道微生物群与神经退行过程联系起来.
主要成果:
- 肠道失生症会改变肠道的透性和全身免疫力,影响中枢神经系统的完整性.
- 微生物代谢物 (例如,SCFA,LPS,TMAO) 调节血脑屏障功能,微质激活和神经传递.
- 特定的细菌,如SCFA产生和托代谢类型,可能会提供神经保护.
结论:
- 肠道微生物群作为一个动态接口,通过免疫和代谢信号影响神经退行过程.
- 肠道微生物群的不平衡导致神经炎症,氧化应激和NDs中神经递质受损.
- 了解这些肠-大脑通信机制对于神经退行性疾病研究和潜在的治疗策略至关重要.
相关概念视频
The Evidence for Evolution
48.0K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.0K
Protein-protein Interfaces
14.7K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.7K
Protein-Protein Interfaces
4.5K
4.5K
Mechanical Protein Functions
5.6K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
5.6K
Directing Effect of Substituents: meta-Directing Groups
5.9K
Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
5.9K
Reaction Mechanisms
30.7K
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
30.7K


