微生物免疫球蛋白涂层,阴道微生物群,种族和早产之间的相互关系
H J Schuster1,2,3,4, A C Breedveld5,6, S P F Matamoros7,5
1Amsterdam UMC location Vrije Universiteit Amsterdam, Medical Microbiology and Infection Control, Boelelaan 1117, Amsterdam, The Netherlands. h.schuster@amsterdamumc.nl.
Microbiome
|May 27, 2024
概括
阴道微生物群的组成显著影响了自发早产 (sPTB) 的风险,而种族也起到了作用. 涉及阴道免疫球蛋白 (Igs) 的宿主微生物相互作用可能会影响这种关系.
科学领域:
- 生殖免疫学 生殖免疫学
- 微生物组研究的研究.
- 围产期健康 围产期健康
背景情况:
- 阴道微生物群的组成与自发早产 (sPTB) 有关,跨种族观察到的差异.
- 宿主微生物群相互作用被假设为调解种族,阴道微生物群和sPTB之间的关系.
研究的目的:
- 为了研究阴道微生物组成,阴道免疫球蛋白 (Igs) 和无卵性孕妇的炎症标志物之间的关联.
- 在种族和sPTB的背景下探索宿主微生物相互作用的作用.
主要方法:
- 预期性对象群研究,对无胎孕孕妇进行研究.
- 评估阴道微生物组成,阴道免疫球蛋白 (Igs) 和局部炎症标志物.
- 嵌套病例控制研究比较了19个sPTB病例与19个匹配的术语控制.
主要成果:
- 乳杆菌内在者占主导地位的微生物群,多样化的微生物群和种族独立地与sPTB相关.
- 微生物Ig涂层与微生物群组成和种族相关,但与sPTB没有直接关联.
- 在各种微生物群中观察到较低的微生物IgA和IgG涂层,特别是在少数民族妇女中,在控制微生物群时,与较高的Ig涂层相关的炎症增加.
结论:
- 阴道微生物群的组成是sPTB的强有力的预测器.
- 阴道粘膜Igs可能调节微生物群组成,炎症和跨种族社区差异.
- 研究结果表明,阴道粘膜Igs在宿主微生物相互作用中的潜在免疫调节作用类似于肠道.
相关概念视频
Development of Immunocompetence
303
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
303
Surface Membrane Barriers
1.1K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
1.1K
Anatomy of the Intestines
71.8K
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...
71.8K
Factors Affecting the Risk of Infection
11.8K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
11.8K
Transcytosis of IgG
2.7K
Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
2.7K
Defense Mechanism Against Infection
6.5K
Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
6.5K


