Diet, microbiome, inflammation and host genetics have been linked to colorectal cancer development; however, it is not clear whether and how these factors interact to promote carcinogenesis. Here we used Il10−/− mice colonized with bacteria previously associated with colorectal cancer: enterotoxigenic Bacteroides fragilis, Helicobacter hepaticus or colibactin-producing (polyketide synthase-positive (pks+)) Escherichia coli and fed either… Continue reading #Dietary fibre counters the oncogenic potential of colibactin-producing Escherichia coli in colorectal #cancer
Category: Gastroenterology
The Impact of Gut #Microbiota on the Development of #Anxiety Symptoms—A Narrative Review
The gut microbiota plays a key role in mental health, with growing evidence linking its composition to anxiety and depressive disorders. Research on this topic has expanded significantly in recent years. This review explores alterations in the gut microbiota of individuals with anxiety disorders and examines the potential therapeutic effects of probiotics. Background/Objectives: This review… Continue reading The Impact of Gut #Microbiota on the Development of #Anxiety Symptoms—A Narrative Review
#Dairy Consumption and the Colonic Mucosa-Associated Gut #Microbiota in Humans—A Preliminary Investigation
Background: Dairy consumption has been associated with various health outcomes that may be mediated by changes in gut microbiota. Methods: This cross-sectional study investigated the association between the colonic mucosa-associated gut microbiota and the self-reported intake of total dairy, milk, cheese, and yogurt. A total of 97 colonic mucosal biopsies collected from 34 polyp-free individuals… Continue reading #Dairy Consumption and the Colonic Mucosa-Associated Gut #Microbiota in Humans—A Preliminary Investigation
Long-term #yogurt intake and colorectal #cancer incidence subclassified by Bifidobacterium abundance in tumor
Evidence suggests a tumor-suppressive effect of the intake of yogurt, which typically contains Bifidobacterium. We hypothesized that long-term yogurt intake might be associated with colorectal cancer incidence differentially by tumor subgroups according to the amount of tissue Bifidobacterium. We utilized the prospective cohort incident-tumor biobank method and resources of two prospective cohort studies. Inverse probability… Continue reading Long-term #yogurt intake and colorectal #cancer incidence subclassified by Bifidobacterium abundance in tumor
Microbial metabolites tune #amygdala neuronal hyperexcitability and #anxiety-linked behaviors
Changes in gut microbiota composition have been linked to anxiety behavior in rodents. However, the underlying neural circuitry linking microbiota and their metabolites to anxiety behavior remains unknown. Using male C57BL/6J germ-free (GF) mice, not exposed to live microbes, increased anxiety-related behavior was observed correlating with a significant increase in the immediate early c-Fos gene… Continue reading Microbial metabolites tune #amygdala neuronal hyperexcitability and #anxiety-linked behaviors
Low-coverage whole genome sequencing of low-grade #dysplasia strongly predicts advanced neoplasia risk in ulcerative #colitis
Background The risk of developing advanced neoplasia (AN; colorectal cancer and/or high-grade dysplasia) in ulcerative colitis (UC) patients with a low-grade dysplasia (LGD) lesion is variable and difficult to predict. This is a major challenge for effective clinical management.Objective We aimed to provide accurate AN risk stratification in UC patients with LGD. We hypothesised that… Continue reading Low-coverage whole genome sequencing of low-grade #dysplasia strongly predicts advanced neoplasia risk in ulcerative #colitis
#Sugar-sweetened beverage intake, gut #microbiota, circulating metabolites, and #diabetes risk in Hispanic Community Health Study/Study of Latinos
Highlights• Sugar-sweetened beverage intake was associated with nine gut bacteria abundances• These bacteria were correlated with aromatic and branched-chain amino acid metabolites• These bacteria were correlated with glycerophospholipids• These gut microbial metabolites were associated with diabetes risk SummaryNo population-based studies examined gut microbiota and related metabolites associated with sugar-sweetened beverage (SSB) intake among US adults.… Continue reading #Sugar-sweetened beverage intake, gut #microbiota, circulating metabolites, and #diabetes risk in Hispanic Community Health Study/Study of Latinos
Physiological Data Collected from #Wearable Devices Identify and Predict Inflammatory #Bowel Disease Flares
Wearable devices capture physiological signals non-invasively and passively. Many of these parameters have been linked to inflammatory bowel disease (IBD) activity. We evaluated the associative ability of several physiological metrics with IBD flares and how they change before the development of flare.MethodsParticipants throughout the United States answered daily disease activity surveys and wore an Apple… Continue reading Physiological Data Collected from #Wearable Devices Identify and Predict Inflammatory #Bowel Disease Flares
Gut #microbiome signatures of vegan, vegetarian and omnivore diets and associated health outcomes across 21,561 individuals
As plant-based diets gain traction, interest in their impacts on the gut microbiome is growing. However, little is known about diet-pattern-specific metagenomic profiles across populations. Here we considered 21,561 individuals spanning 5 independent, multinational, human cohorts to map how differences in diet pattern (omnivore, vegetarian and vegan) are reflected in gut microbiomes. Microbial profiles distinguished… Continue reading Gut #microbiome signatures of vegan, vegetarian and omnivore diets and associated health outcomes across 21,561 individuals
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