当前位置: X-MOL 学术Microbiome › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The extracellular vesicle of gut microbial Paenalcaligenes hominis is a risk factor for vagus nerve-mediated cognitive impairment.
Microbiome ( IF 13.8 ) Pub Date : 2020-07-15 , DOI: 10.1186/s40168-020-00881-2
Kyung-Eon Lee 1 , Jeon-Kyung Kim 1 , Sang-Kap Han 1 , Dong Yun Lee 1 , Hae-Ji Lee 1 , Sung-Vin Yim 2 , Dong-Hyun Kim 1
Affiliation  

In a pilot study, we found that feces transplantation from elderly individuals to mice significantly caused cognitive impairment. Paenalcaligenes hominis and Escherichia coli are increasingly detected in the feces of elderly adults and aged mice. Therefore, we isolated Paenalcaligenes hominis and Escherichia coli from the feces of elderly individuals and aged mice and examined their effects on the occurrence of age-related degenerative cognitive impairment and colonic inflammation in mice. The transplantation of feces collected from elderly people and aged mice caused significantly more severe cognitive impairment in transplanted young mice than those from young adults and mice. Oral gavage of Paenalcaligenes hominis caused strong cognitive impairment and colitis in specific pathogen-free (SPF) and germ-free mice. Escherichia coli also induced cognitive impairment and colitis in SPF mice. Oral gavage of Paenalcaligenes hominis, its extracellular vesicles (EVs), and/or lipopolysaccharide caused cognitive impairment and colitis in mice. However, celiac vagotomy significantly inhibited the occurrence of cognitive impairment, but not colitis, in mice exposed to Paenalcaligenes hominis or its EVs, whereas its lipopolysaccharide or Escherichia coli had no such effects. Vagotomy also inhibited the infiltration of EVs into the hippocampus. Paenalcaligenes hominis, particularly its EVs, can cause cognitive function-impaired disorders, such as Alzheimer’s disease, and its EVs may penetrate the brain through the blood as well as the vagus nerve.

中文翻译:

肠道微生物人产白带菌的细胞外囊泡是迷走神经介导的认知障碍的危险因素。

在一项先导研究中,我们发现从老年人向小鼠移植粪便会严重引起认知障碍。在老年人和老年小鼠的粪便中越来越多地检测到人原痛性杆菌和大肠杆菌。因此,我们从老年人和老年小鼠的粪便中分离了人原产肠杆菌和大肠埃希氏菌,并检查了它们对小鼠中与年龄有关的退化性认知障碍和结肠炎症的发生的影响。从老年人和老年小鼠收集的粪便的移植对移植的年轻小鼠造成的认知障碍比从成年人和小鼠中引起的认知障碍严重得多。在特定的无病原体(SPF)和无细菌的小鼠中,对人产Paenalcaligenes hominis的管饲会引起强烈的认知障碍和结肠炎。大肠杆菌还可以诱发SPF小鼠的认知障碍和结肠炎。食人产白粉刺,其胞外囊泡(EVs)和/或脂多糖的口服管饲可引起小鼠认知障碍和结肠炎。但是,腹腔迷走神经切断术显着抑制了暴露于人产Paenalcaligenes或其电动车的小鼠的认知障碍的发生,但没有抑制结肠炎的发生,而其脂多糖或大肠杆菌没有这种作用。迷走神经切断术还抑制了电动汽车向海马的浸润。人原性Paenalcaligenes人,特别是其EV,可引起认知功能受损的疾病,例如阿尔茨海默氏病,并且其EV可能通过血液以及迷走神经穿透大脑。和/或脂多糖引起小鼠认知障碍和结肠炎。但是,腹腔迷走神经切断术显着抑制了暴露于人产Paenalcaligenes或其电动车的小鼠的认知障碍的发生,但没有抑制结肠炎的发生,而其脂多糖或大肠杆菌没有这种作用。迷走神经切断术还抑制了电动汽车向海马的浸润。人原性Paenalcaligenes,特别是其电动汽车,可能引起认知功能受损的疾病,例如阿尔茨海默氏病,其电动汽车可能会通过血液以及迷走神经穿透大脑。和/或脂多糖引起小鼠认知障碍和结肠炎。但是,腹腔迷走神经切断术显着抑制了暴露于人产Paenalcaligenes或其电动车的小鼠的认知障碍的发生,但没有抑制结肠炎的发生,而其脂多糖或大肠杆菌没有这种作用。迷走神经切断术还抑制了电动汽车向海马的浸润。人原性Paenalcaligenes人,特别是其EV,可引起认知功能受损的疾病,例如阿尔茨海默氏病,并且其EV可能通过血液以及迷走神经穿透大脑。而其脂多糖或大肠杆菌则无此作用。迷走神经切断术还抑制了电动汽车向海马的浸润。人原性Paenalcaligenes人,特别是其EV,可引起认知功能受损的疾病,例如阿尔茨海默氏病,并且其EV可能通过血液以及迷走神经穿透大脑。而其脂多糖或大肠杆菌则无此作用。迷走神经切断术还抑制了电动汽车向海马的浸润。人原性Paenalcaligenes人,特别是其EV,可引起认知功能受损的疾病,例如阿尔茨海默氏病,并且其EV可能通过血液以及迷走神经穿透大脑。
更新日期:2020-07-15
down
wechat
bug