Background And Aims: Pglyrp3 is a bactericidal innate immunity protein known to sustain the habitual gut microbiome and protect against experimental colitis. Intestinal inflammation and metaflammation are commonly associated with a marked reduction of commensal bifidobacteria. Whether Pglyrp3 and bifidobacteria interact synergistically or additively to alleviate metaflammation is unknown.
View Article and Find Full Text PDFAntiinflamm Antiallergy Agents Med Chem
November 2021
Background And Aims: Following a fat-rich diet, alterations in gut microbiota contribute to enhanced gut permeability, metabolic endotoxemia, and low grade inflammation-associated metabolic disorders. To better understand whether commensal bifidobacteria influence the expression of key metaflammation-related biomarkers (chemerin, MCP-1, PEDF) and modulate the pro-inflammatory bacteria- and lipid-coupled intracellular signaling pathways, we aimed at i) investigating the influence of the establishment of microbial signaling molecules-based cell-cell contacts on the involved intercellular communication between enterocytes, immune cells, and adipocytes, and ii) assessing their inflammatory mediators' expression profiles within an inflamed adipose tissue model.
Material And Methods: Bifidobacterium animalis R101-8 and Escherichia coli TG1, respectively, were added to the apical side of a triple co-culture model consisting of intestinal epithelial HT-29/B6 cell line, human monocyte-derived macrophage cells, and adipose-derived stem cell line in the absence or presence of LPS or palmitic acid.
Background And Purpose: In previous investigations, was shown to lack the metabolic pathway from fructose to mannitol and to produce ethanol when cultivated in the presence of fructose. Hence, we assessed the effect of oral administration of (strain NRRL-B-14171) on blood and fecal ethanol concentrations, glucose and lipid metabolism and traits of the metabolic syndrome in Wistar rats (n=27) fed diets with two different fat and fructose levels and with or without the addition of during a total intervention time of 15 weeks (105 days).
Materials And Methods: From week 1 to 6, rats were given a medium fructose and fat (MFru-MF) diet containing 28% fructose and 10% fat without the addition of (control group, n=13) or mixed with 30 g per kg diet of lyophilized (10.
Immunobiology
January 2020
Unlabelled: Increased concentration of ferrous iron in the gastrointestinal tract increases the number of various pathogens and induces inflammation. LPS and/or high-fat diet-associated metaflammation is mediated through a quaternary receptor signaling complex containing iron-regulated pathway, IL-6/STAT inflammatory signaling pathway, hepcidin regulatory pathway, and common TLR4/NF-κB signaling pathway. We, therefore, investigated whether bifidobacteria directly or indirectly ameliorate LPS- and/or high-fat diet-associated metaflammation by reduction of intestinal iron concentration and/or the above-mentioned pathways.
View Article and Find Full Text PDFWe aimed at assessing the evidence for an effect on vaginal dysbiosis by oral administration of a mixture of strains isolated from vaginal microbiota. For this purpose, we systematically reviewed the literature for randomised clinical trials (RCTs) in which the effect of oral administration of a mixture of four strains ( LbV 88 (DSM 22566), LbV 150N (DSM 22583), LbV 116 (DSM 22567) and LbV96 (DSM 22560)) on vaginal dysbiosis was examined based on Nugent score. Four RCTs were identified: a double-blind (DB)-RCT in 60 male-to-female transsexual women with neovagina; an open label RCT in 60 pregnant women with herpes virus infection; a DB-RCT in 36 women with bacterial vaginosis; a DB-RCT in 22 postmenopausal breast cancer patients receiving chemotherapy.
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