UMI-77通过调节脑肠轴来改善脂多糖诱导性败血症相关脑病变
Yu Ke1,2, Cuicui Dong3, Chang Liu1,2
1College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shenyang, China.
Brain and behavior
|January 13, 2026
概括
通过调节肠道微生物群和大脑新陈代谢,UMI-77治疗改善了败血症相关脑病变 (SAE) 的神经功能. 这项研究通过代谢学和大脑-肠轴探索了它的机制.
科学领域:
- 神经科学是一个神经科学.
- 代谢学 代谢学 代谢学
- 微生物学 微生物学
背景情况:
- 败血症相关脑病变 (SAE) 是败血症的一个常见的神经并发症.
- UMI-77显示出抗炎性质,在败血症中有益.
- 对于UMI-77在SAE治疗中的具体作用和机制尚不清楚.
研究的目的:
- 使用代谢学研究UMI-77对SAE的治疗效果.
- 阐明UMI-77在SAE治疗中的机制,重点关注大脑-肠轴.
主要方法:
- 血素和欧 (H&E) 和免疫光染色评估了UMI-77在SAE小鼠中的治疗效果.
- 非向代谢学分析了治疗小鼠的大脑和肠道中的代谢变化.
- 接收器操作特征 (ROC) 分析确定了用于机制探索的预测生物标志物.
主要成果:
- 确定了66个重要的大脑生物标志物,主要涉及到酸代谢和氨酸,氨酸和三生物合成.
- 确定了78种肠道生物标志物,主要与氨酸,氨酸和氨酸生物合成以及生物素代谢有关.
- 鉴定出L-phenylalanine,L-tyrosine和5-hydroxy-tryptophan是主要的代谢物.
结论:
- UMI-77通过特定的代谢途径积极调节肠道微生物群的破坏.
- UMI-77显著改善了SAE中的神经功能.
- UMI-77减少了脑组织细胞的亡,表明神经保护作用.
相关概念视频
Dysbiosis of the Gut Microbiota
The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...
Gut-Brain Axis
The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such as...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
Hepatic Encephalopathy
DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...


