肠道微生物群和表观遗传编舞:对人类健康的影响:一篇综述
Bailee Kim1, Angel Song2, Andrew Son3
1Crescenta Valley High School, La Crescenta, CA.
Medicine
|July 19, 2024
概括
肠道微生物组和表观遗传密切相关,影响健康和疾病. 了解这种肠表观遗传轴为治疗诸如肥胖和炎症性肠病等疾病提供了新的途径.
科学领域:
- 微生物学 微生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 人类健康 人类健康 人类健康
背景情况:
- 肠道微生物群在宿主新陈代谢,免疫力和病原体防御中起着至关重要的作用.
- 表观遗传机制,包括DNA甲基化和基因素修饰,是基因表达的关键调节者.
- 肠道微生物组和宿主表观遗传学之间的相互作用越来越被认为对健康和疾病至关重要.
研究的目的:
- 探索肠道微生物群和宿主的表观遗传景观之间的复杂关系.
- 研究这种肠表观遗传轴如何影响生理动态和疾病发展.
- 突出这种相互作用对新治疗策略的潜力.
主要方法:
- 基因组和代谢组分析以研究微生物和宿主相互作用.
- 研究与肠道微生物组成相关的DNA甲基化和基因素修饰.
- 跨学科数据分析,整合微生物组和表观基因组数据.
主要成果:
- 显示了肠道微生物群组成和表观遗传修饰之间的明显对齐.
- 确定了与炎症性肠病和肥胖等疾病相关的特定肠表观遗传特征.
- 强调了分析微生物组和表观基因组研究的多方面的数据的复杂性和挑战.
结论:
- 肠道微生物群和表观遗传构成了影响人类健康的关键轴.
- 了解这一轴对于开发各种疾病的创新治疗方法至关重要.
- 需要进一步的研究,整合微生物组和表观基因组数据,以释放治疗潜力并改善公共卫生.
相关概念视频
Introduction to the Human Microbiota
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, and disease...
Development of Human Microbiota
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 the skin...
Functions of the Gut Microbiota
The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...
Dysbiosis of the Gut Microbiota
The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...
Gut-Brain Axis
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 as...
Microbiota Modulation by Antibiotics
Antibiotics have revolutionized modern medicine by saving countless lives from bacterial infections. However, their widespread use has inadvertently harmed the delicate balance of the human gut microbiota. The gut microbiota, a complex community of bacteria, archaea, viruses, and fungi, plays a vital role in regulating metabolism, immune responses, and maintaining intestinal health. Antibiotics, especially broad-spectrum types, disrupt this ecosystem by eradicating both harmful and beneficial...


