乳球菌代谢物对LPS诱导的败血症的预防作用
Yue Fu1, Song Zhang1, Qiulin Yue1
1State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China.
Frontiers in microbiology
|August 1, 2024
概括
来自乳球菌 (L. lactis) 益生菌的细胞外产品显示出对败血症的预防作用. 这些发现表明,益生菌可能为败血症预防和管理提供一种新的策略.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 败血症是一种危及生命的器官功能障碍,原因是宿主对感染的反应失调.
- 抗生素耐药性和肠道微生物群失生症复杂化了败血症的管理.
- 益生菌在调节肠道微生物群和改善健康方面显示出潜力.
研究的目的:
- 评估益生菌产品对败血症的预防作用.
- 为了识别和描述Lactococcus lactis (L. lactis) 的细胞外产物.
- 为了阐明通过L. lactis细胞外产品预防败血症的机制.
主要方法:
- 在体外细胞实验中识别L. lactis细胞外产物.
- 在体内血症的小鼠模型.
- 组织病理学分析 (HE染色),生存率评估和分子分析 (芯片分析).
主要成果:
- 在细胞败血症模型中,L. lactis的细胞外产物增强了细胞存活率并减少了炎症因素.
- 在体内,这些产品减轻了肺,减少了炎症透,降低了死亡率,并降低了小鼠的血清炎症标志物.
- 通过L. lactis.预防败血症的机制的初步阐明.
结论:
- 在小鼠模型中,L. lactis的细胞外产物有效地预防了败血症发作.
- 益生菌代表了预防败血症的潜在新途径.
- 对益生菌机制的进一步研究可能为败血症提供新的治疗策略.
相关概念视频
01:31Defense Against Bacterial Pathogens
1.4K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.4K
01:23Antimicrobial Proteins
957
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
957