通过阴道微生物组的镜头观察美国原住民宫癌差异:试点研究
Paweł Łaniewski1, Tawnjerae R Joe2,3, Nicole R Jimenez4
1Department of Basic Medical Science, College of Medicine-Phoenix, University of Arizona, Phoenix, Arizona.
Cancer prevention research (Philadelphia, Pa.)
|August 22, 2024
概括
与社会因素相关的阴道失生症在美洲原住民女性中更为常见,并与高风险的人类乳头瘤病毒 (HPV) 感染有关,有助于宫癌差异.
科学领域:
- 微生物组研究的研究.
- 妇科瘤学 妇科瘤学
- 在健康方面存在差异.
背景情况:
- 阴道失调与持续的人类乳头瘤病毒 (HPV) 感染和宫癌有关.
- 美国原住民社区的阴道微生物组数据有限,尽管宫癌风险增加.
- 了解这些因素对于解决健康差异至关重要.
研究的目的:
- 调查阴道微生物群,HPV和美国土著妇女的社会人口统计学/行为因素之间的关系.
- 探索这些人群中宫癌风险增加的潜在因素.
- 在阴道健康和HPV感染的背景下检查免疫媒介.
主要方法:
- 试点研究涉及31名妇女 (16名美国原住民,15名非原住民) 在亚利桑那州北部.
- 分析阴道微生物群组成,HPV状态和免疫媒介.
- 评估社会人口统计学,身体,精神,性和生殖健康因素.
主要成果:
- 与非原住民女性 (58%) 相比,较少的美洲原住民女性 (44%) 显示出乳酸菌主导地位.
- 阴道失生症与阴道pH值升高,高风险的HPV感染以及特定的社会人口因素 (家庭规模,教育,平等) 相关.
- 在阴道样本中与增加的益炎性细胞因子相关的异生物微生物群.
结论:
- 受社会决定因素影响的阴道失生症可能在HPV持续性和美国土著妇女的宫癌差异中发挥作用.
- 需要进一步研究HPV,阴道微生物群和宿主防御机制之间的相互作用.
- 需要进行长度研究来确认因果关系,并为减少健康差异提供有针对性的干预措施的信息.
相关概念视频
Introduction to the Human Microbiota
226
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,...
226
Development of Human Microbiota
73
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...
73
The Skin Microbiota
135
The human skin serves as a complex ecosystem inhabited by a diverse community of microorganisms, including bacteria, fungi, and viruses. This microbiome plays a critical role in maintaining skin health and defending against pathogenic invaders. The composition of microbial communities varies significantly across different regions of the body, influenced primarily by the local levels of moisture and sebum.Regional Variation in Skin MicrobiotaCutibacterium acnes predominantly colonizes sebaceous...
135
Microbiome of the Eye
75
The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
75
Development of the Oral Microbiota
75
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,...
75
Microbiota of the Urogenital Tract
61
The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...
61


