Fusobacterium nucleatum Activates Endoplasmic Reticulum Stress to Promote Crohn ’s Disease Development via the Upregulation of CARD3 Expression

There is increasing evidence that members of the gut microbiota, especially Fusobacterium nucleatum (F. nucleatum), are associated with Crohn’s disease (CD), but the specific mechanism by which F. nucleatum promotes CD development is unclear. Here, we first examined the abundance of F. nucleatum and its effects on CD disease activity and explored whether F. nucleatum aggravated intestinal inflammation and promoted intestinal mucosal barrier damage in vitro and in vivo. Our data showed that F. nucleatum was enriched in 41.21% of CD tissues from patients and was correlated with the clinical course, clinical activity, and refractory behavior of CD (P
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research

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CONCLUSION:A number of studies have showed an association between PD and IBD. Both diseases share genetic and environmental etiological factors. The precise role of intestinal bacteria remains vague. The periodontal microbiota that might be involved in the association of these diseases are Fusobacterium nucleatum, Campylobacter rectus and Campylobacter concisus. Fungal and viral microbiota dysbiosis should also be evaluated as common pathogenic pathways in IBD and periodontal disease.
Source: Dental Technology Blog - Category: Dentistry Source Type: news
CONCLUSIONS: A significant dysbiosis was found in UC and CD patients compared to controls. PMID: 31293117 [PubMed - as supplied by publisher]
Source: Minerva Gastroenterologica e Dietologica - Category: Gastroenterology Tags: Minerva Gastroenterol Dietol Source Type: research
Conclusions: A combination of fecal Fn and Fp was identified as a valuable marker for CD diagnosis. A CD bacterial marker panel may provide a simple noninvasive approach to screen for CD.
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
CONCLUSION: The dysbiosis of mucosa-associated microbiota was associated with the disease phenotype and may become a potential diagnostic tool for the recurrence of disease. PMID: 31143071 [PubMed - in process]
Source: World Journal of Gastroenterology : WJG - Category: Gastroenterology Authors: Tags: World J Gastroenterol Source Type: research
In this study, we identified 37 genus-level core bacteria from feces of 101 healthy mice with different ages, sexes, and mouse strains in three previous studies. They collectively represented nearly half of the total sequences, and predominantly included carbohydrate- and amino acids-metabolizing bacteria and immunomodulatory bacteria. Among them, Anaerostipes indwelt the gut of all healthy mice. Co-abundance analysis showed that these core genera were clustered into five groups (Group C1–C5), which were ecologically related. For example, the abundances of Group C2 including probiotics Bifidobacterium and Lactobacill...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In this study, we identified the differentially abundant gut microbes between CRC and healthy samples using the Ratio Approach for Identifying Differential Abundance (RAIDA) algorithm (Sohn et al., 2015). The algorithm fitted the distribution of observed data with a modified zero-inflated lognormal (ZIL) model and estimated the statistical significance of abundance difference by the T-test. Furthermore, we used the GRAMMy algorithm (Xia et al., 2011) to estimate and analyze the relative abundance of gut microbes and diversity of the microbial communities. Finally, we constructed and analyzed a microbial association network...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In conclusion, our study might provide evidence that GQD treats diarrhea maybe involved in modulating gut microbiota and increasing SCFA levels. Introduction Diarrheal diseases cause approximately 1.7 billion new infections and 0.76 million deaths in children of under 5 years of age annually and are thus the second most common cause of mortality in young children in developing countries (Kotloff et al., 2012, 2013). Outbreaks of such diseases are usually related to infection by common causative agents, mainly rotavirus, Salmonella enterica, and diarrheagenic Escherichia coli (Hodges and Gill, 2010; Kolenda et al., ...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Smith Etareri Evivie1,2†, Amro Abdelazez1,3, Bailiang Li1†, Xin Bian4, Wan Li1, Jincheng Du1, Guicheng Huo1* and Fei Liu1 1Key Laboratory of Dairy Science, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin, China 2Food Science and Nutrition Unit, Department of Animal Science, Faculty of Agriculture, University of Benin, Benin City, Nigeria 3Department of Dairy Microbiology, Animal Production Research Institute, Agriculture Research Center, Giza, Egypt 4Department of Food Engineering, Harbin University of Commerce, Harbin, China Foodborne pathogens are a ma...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Guangwen Luo1†, Bailiang Li1†, Cailu Yang2†, Yutang Wang1, Xin Bian1, Wan Li1, Fei Liu1 and Guicheng Huo1* 1Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China 2Department of Ultrasound, Maternal and Child Health Hospital of Dapeng New District, Shenzhen, China Modulating gut microbiota to promote host health is well recognized. Therefore, people consume dietary products containing traditional probiotics in wishing to improve their health, and they need more research-based advices on how to select products with sui...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Authors: Purcell RV, Kaakoush NO, Mitchell HM, Pearson JF, Keenan JI Abstract Crohn's disease (CD) is an inflammatory disease of the gastrointestinal tract, with a rising incidence worldwide, particularly in children. CD is thought to arise due to an immune response to environmental factors. The role of bacteria in CD has recently been highlighted, and here, we examine the prevalence of two bacterial species, enterotoxigenic Bacteroides fragilis (ETBF) and Fusobacterium nucleatum, implicated in gastrointestinal pathologies, in a pediatric CD cohort. Stool samples from 30 children with treatment-naïve CD and 30...
Source: International Journal of Microbiology - Category: Microbiology Tags: Int J Microbiol Source Type: research
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