血液循环中的血液动力学参数与肠道微生物群之间的关联:一个横截面研究
Saviga Sethasathien1, Chanon Kunasol2,3, Suchaya Silvilairat1
1Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Chiang Mai University Chiang Mai Thailand.
Journal of the American Heart Association
|February 11, 2026
概括
丰田手术患者表现出肠道失调,与血动力学压力和肝脏状况相关的微生物特征发生变化. 这些发现表明血液动力学-肠道-肝脏轴在Fontan循环中影响健康.
科学领域:
- 心血管生理学心血管生理学
- 微生物组研究 微生物组研究
- 胃肠病学 胃肠病学
背景情况:
- 丰坦手术是复杂先天性心脏病的缓解手术,导致慢性血液动力学变化,尤其是中静脉高血压.
- 假设这些血液动力学变化有助于肠道失调,肠道微生物群的失衡.
研究的目的:
- 为了比较经过Fontan手术和健康对照者的肠道微生物群概况.
- 在Fontan患者中研究了导管测量血液动力学参数,肝功能和肠道微生物变化之间的关系.
主要方法:
- 一项涉及23名Fontan患者和23名匹配的健康对照者的横截面研究.
- 从所有参与者收集便样本,用于肠道微生物群分析.
- 使用16S rRNA基因测序来描述微生物群落的特征.
主要成果:
- 与对照组相比,Fontan患者表现出显著的肠道失调,其特点是微生物均性降低和β-多样性改变.
- 芬坦患者的炎症相关细菌数量增加,有益的短链脂肪酸生成基因水平降低.
- 升高的肺和Fontan电路压力,以及更大的肺间梯度,与较低的微生物多样性和有益种群的枯竭相关. 较高的血清白蛋白表明肝脏状况更好,微生物概况更有利.
结论:
- 芬坦患者表现出与他们的血液动力学和肝脏负担相关的明显肠道微生物群破坏模式.
- 循环拥堵,肝脏参与和肠道失调之间存在分级的关联,支持Fontan生理学中的血液动力学-肠道-肝脏轴.
- 特定的细菌种群可以作为风险分层和Fontan患者治疗指导的潜在生物标志物.
相关概念视频
01:50Cross-Sectional Research
12.7K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.7K
01:24Finding Volume Using Cross-Sectional Area
96
For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
96
01:26Profile Leveling and Cross Sections
1.7K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
1.7K
01:16Spinal Cord: Cross-sectional Anatomy
4.9K
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...
4.9K
01:11Genome-wide Association Studies-GWAS
15.8K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.8K
01:34Crossing Over
172.3K
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
172.3K