研究肠道微生物群对鼻息肉发育的影响:从孟德尔随机化中获得的见解
Ning Lu1, Yuxu Yao2, Meiling Gao3
1Department of Ear, Nose, and Throat, The First Affiliated Hospital of Soochow University, Suzhou, China.
International archives of allergy and immunology
|June 18, 2025
概括
这项研究揭示了肠道细菌和鼻之间的因果关系,其中特定的代谢途径作为中间体. 这些发现为了解和治疗具有鼻息肉的慢性鼻炎提供了新的途径.
科学领域:
- 微生物组研究的研究.
- 遗传学 遗传学 是一个
- 代谢学 代谢学 代谢学
背景情况:
- 经过手术后,常见的鼻息肉性慢性鼻炎 (CRSwNP) 经常复发,这表明存在复杂的潜在机制.
- 肠道微生物群在CRSwNP病变发生过程中的作用仍未得到充分研究.
- 了解这些联系对于开发有效的治疗方法至关重要.
研究的目的:
- 调查肠道微生物群和鼻之间的因果关系.
- 确定和量化代谢途径在这种关系中的调解作用.
主要方法:
- 利用全基因组关联研究 (GWAS) 的数据用于鼻息肉,肠道微生物群和代谢途径.
- 使用两个样本的门德尔随机化 (MR) 分析.
- 进行两步MR进行调解分析,以评估代谢途径的影响.
主要成果:
- 类Actinomyces和Bifidobacterium与通过特定代谢途径的抑制增加鼻息肉风险有关.
- 家庭Desulfovibrionaceae和订单Desulfovibrionales通过促进关键代谢途径 (GALACTUROCAT-PWY,ILEUSYN-PWY) 与减少鼻息肉风险有关.
结论:
- 确定了肠道微生物群组成和鼻之间的因果关系.
- 确定了特定的代谢途径作为肠鼻多轴的显著调解者.
- 为针对CRSwNP中的肠道微生物群的潜在治疗策略提供了新的见解.
相关概念视频
Introduction to the Human Microbiota
222
Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity,...
222
Development of Human Microbiota
68
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...
68
The Oral Microbiota
97
The oral microbiome includes a complex ecosystem comprising over 700 microbial species, identified through genomic sequencing and culture-based analyses to date. This community includes a core microbiome, found universally among individuals, and a variable component influenced by environmental factors such as diet, lifestyle, and host genetics. Site-specific conditions, including oxygen gradients, pH levels, and nutrient availability, determine the spatial distribution of these microorganisms...
97
Development of the Oral Microbiota
73
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
73
Microbiota of the Respiratory Tract
144
The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more...
144
Gut-Brain Axis
249
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...
249


