肠道微环境动态和败血症相关脑病变的病理生理学:从多omics分析的洞察力
Zhou Xing Zhang1, Wen Bo Xu2, Fu Li Gu2
1Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, Zhejiang, China.
Frontiers in neurology
|February 11, 2026
概括
败血症相关脑病变 (SAE) 涉及肠道微生物群转移和便微RNA (miRNAs). MiR-30e-3p和miR-223-5p显示出作为SAE的诊断生物标志物的潜力,揭示了肠-大脑轴相互作用.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 神经科学是一个神经科学.
背景情况:
- 败血症相关脑病变 (SAE) 是一种严重的败血症并发症,其肠-大脑轴机制尚不清楚.
- 肠道失调与SAE有关,但具体的途径仍然难以捉摸.
研究的目的:
- 在SAE中使用多组学来研究肠道微环境.
- 为了确定潜在的肠道微生物群和miRNA生物标志物用于SAE.
主要方法:
- 综合多组学:在SAE (n=10) 和败血症 (SP,n=20) 患者中进行16S rDNA和便miRNA测序.
- 相关性网络分析以链接肠道微生物群和miRNAs.
- 机器学习 (LASSO,弹性网) 用于生物标记物识别.
- ceRNA网络分析用于功能洞察和IL-1β的实验验证.
主要成果:
- 在SAE患者中明显的肠道微生物群组成变化 (例如,内菌增加,菌减少).
- 在SAE中发现了12个差异表达的便miRNA,其中11个是上调调的.
- 发现了便miRNA和肠道细菌之间的显著相互作用,形成了一个复杂的网络.
- 确定了米R-30e-3p和miR-223-5p作为有前途的诊断生物标志物 (AUC=0.893).
- 功能分析将miRNA与炎症和免疫调节途径联系起来,经过SAE患者血清IL-1β升高的验证.
结论:
- 这项研究揭示了一个新的便miRNA-肠道微生物群相互作用网络在SAE病原体.
- 突出显示了米R-30e-3p和miR-223-5p作为SAE的关键媒介和潜在的诊断/治疗标.
更多相关视频
10:59Glycomics-Guided Glycoproteomics Facilitates Comprehensive Profiling of the Glycoproteome in Complex Tumor Microenvironments
Published on: February 7, 2025
1.8K
08:24Extended Time-lapse Intravital Imaging of Real-time Multicellular Dynamics in the Tumor Microenvironment
Published on: June 12, 2016
8.7K
相关概念视频
Anatomy of the Intestines
87.9K
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...
87.9K
Pathophysiology of Diabetes
3.7K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
3.7K
Hypertension II: Pathophysiology
1.0K
Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
1.0K
Pneumonia II: Pathophysiology
3.1K
The pathophysiology of pneumonia involves the following steps:
3.1K
Pathophysiology of Vomiting
3.2K
Vomiting is a complex physiological response to expel harmful or irritating substances from the body. It's a defensive mechanism triggered by stimuli like poisons, microbial toxins, cytotoxic drugs, and mechanical abdominal distension. The process is centrally coordinated by the vomiting (or emetic) center located in the medulla of the brainstem. This area, rich in muscarinic M1, histamine H1, neurokinin 1 (NK1), and serotonin 5-HT3 receptors, coordinates the act of vomiting through...
3.2K
Gastritis-II: Pathophysiology
1.4K
Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
1.4K
