# PathMap Report Trace Context: #00000081
Hypothesis: How does the gut microbiome modulate inflammation?
Author: Joshua Dungan (PathMap.org)
License: 'THE GLOBAL HUMANITARIAN PROPRIETARY LICENSE (VERSION 1.0.1)' https://pathmap.org/license.pdf
Full provenance JSON trace: https://pathmap.org/download.php/?id=81
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SYSTEM NOTE: The eight-digit ID numbers (e.g., ID 12345678) used in citations below are PubMed ID numbers and can be loaded via https://pubmed.ncbi.nlm.nih.gov/{ID}/ for verification.

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## Primary Synthesis & Clinical Bottom-Line
The gut microbiome regulates inflammatory status through a complex, systems-level axis involving intestinal barrier integrity, metabolite production (such as short-chain fatty acids), and direct modulation of immune signaling pathways (e.g., NF-κB, TLR4). Dysbiosis—a state of microbial imbalance—triggers systemic inflammation via the translocation of bacterial products and the loss of immunoregulatory metabolites. Restoration of microbial homeostasis, through prebiotics, probiotics, or fecal microbiota transplantation, serves as an adjunctive therapeutic strategy to mitigate inflammation across diverse pathological conditions.

## Plausibility Verdicts
- Evaluation 1: The gut microbiome modulates inflammation by maintaining the epithelial barrier, producing anti-inflammatory metabolites (like SCFAs), and regulating immune signaling pathways. Dysbiosis leads to barrier breakdown and systemic inflammation, which can be mitigated via probiotic or metabolite-based therapy.
- Evaluation 2: The gut microbiome modulates inflammation through structural, metabolic, and direct immune-signaling axes. Dysbiosis leads to barrier breakdown and PAMP translocation, while beneficial metabolites and taxa suppress inflammatory pathways like NF-κB.
- Evaluation 3: The gut microbiome modulates inflammation by maintaining intestinal barrier integrity and producing metabolites that suppress inflammatory signaling (NF-κB/NLRP3), whereas dysbiosis triggers systemic inflammation via PAMP translocation.

## Novel & Overlooked Insights
- Microbiome dysbiosis is not merely an effect of disease but a proactive driver of systemic "inflammaging," particularly in conditions like chronic kidney disease.
- The food microbiome acts as a historical and contemporary modulator of host immune and neuroactive functions, bridging external environment and internal physiology.
- Specific bacterial metabolites, such as caproic acid derived from TGP, can uniquely restore immune cell subsets and immunothrombosis homeostasis.
- The gut microbiota affects CNS status through the gut-brain axis; for instance, oral probiotics rescued memory deficits and reduced hippocampal HIF-1α accumulation in hypoxic mice.
- Pro-inflammatory signaling is modulated by the gut through specific gene pathways, such as the suppression of NF-κB or the activation of the AHR/IL-22/STAT3 axis.
- The gut-lung axis is a critical path for inflammatory control; exercise-responsive metabolites may mediate pulmonary health in COPD.
- Even non-digestible carbohydrates derived from fermentation, such as oligofructans, show potent ability to reduce inflammatory taxa without toxicity.
- Duodenal microbiota signatures are linked to specific N6-methyladenosine (m6A) epitranscriptomic modifications in common variable immunodeficiency.
- Intratumoral bacteria can recruit neutrophils to stimulate tumor growth, highlighting that microbial influence is not restricted to the gut but persists at the tissue level.
- The "bursa-independent" B-cell genesis pathway in the cecal tonsils is vital for gut-liver homeostasis and IgA-mediated defense.
- The gut microbiome can influence organ-specific pathologies, such as hepatic steatosis and neuroinflammation, through bidirectional axes (e.g., gut-liver, gut-brain).
- Microbe-derived metabolites, such as lumichrome, suggest that vitamin catabolism is a regulatory mechanism for dampening inflammation.
- Probiotics can act via the "gut-lung axis" to mitigate severe inflammatory events like sepsis-induced lung injury.
- The immune modulatory effects of probiotics can be strain-specific, requiring precise mapping of microbial taxa to host receptors.
- Microbial metabolite landscapes are arguably as important as taxonomic composition in defining the host's inflammatory state.
- Host-microbe immune signatures, such as IgA responses, are critical indicators of the immunological impact of the gut microenvironment.
- Targeted silencing of inflammatory receptors using engineered bacterial nanovesicles represents a high-precision future direction for gut-mediated immunomodulation.
- Nano-messenger Communication:** Bacterial extracellular vesicles (BEVs) act as essential nanoscale messengers that facilitate direct communication between the gut microbiota and distant organs, such as joints and the brain.
- Prebiotic-like Flavonoids:** Compounds like galangin do not act primarily through direct antimicrobial action but by modulating the microbiome to enrich specific beneficial metabolites like indole-3-lactic acid (ILA), which activates the aryl hydrocarbon receptor (AHR) to suppress inflammation.
- Bitter Taste Transduction:** Bitter taste receptors (T2Rs) in non-taste tissues (e.g., renal tissue) are involved in neuroimmune regulation; probiotics can alleviate inflammation by activating these transduction pathways.
- Metabolic Synergy:** Bacterial-host co-metabolism, such as the conversion of primary to secondary bile acids, is crucial for activating TGR5 receptors and maintaining immune tolerance.
- Surgical Impact:** Perioperative broad-spectrum antibiotic usage can deplete commensal communities and exacerbate inflammatory responses by enabling suture-associated polymicrobial biofilms.
- Circadian Clock Linkage:** The circadian rhythm gene *BMAL1* is downregulated in colitis and its deletion induces pyroptosis, linking internal biological clocks directly to intestinal epithelial barrier integrity.
- Phage Metabolic Switches:** Bacteriophages act as metabolic switches in the microbiome, governing microbial metabolic states through lytic nutrient release and lysogenic gene delivery that can mitigate oxidative stress.
- Diet-Microbiome-Neuro Axis:** Certain diets (measured by the DI-GM index) correlate with lower GERD risk, partially mediated by phenotypic age acceleration and adiposity-related systemic markers.

## Extracted Custom Discoveries
### Suggested Experiments
- Assess the impact of fecal microbiota transplantation on NF-κB signaling in human subjects with systemic inflammatory disorders using multi-omics analysis.
- Investigate whether specific bacterial-derived extracellular vesicles can reverse epigenetic signatures in duodenal biopsies of inflammatory bowel disease patients.
- Determine the causal relationship between specific microbial-derived tryptophan metabolites and the polarization of macrophages in the tumor microenvironment.
- Perform longitudinal multi-omics profiling (metagenomics and metabolomics) in patients receiving FMT to establish a causal link between specific bacterial metabolites and reduction of serum IL-6.
- Utilize 3D gut-on-a-chip models to test the specific suppression of NF-κB activation by candidate probiotic supernatants under simulated oxidative stress conditions.
- Measure the spatial distribution of indole-3-propionic acid (IPA) in the intestinal mucosa of gnotobiotic mice to determine the precise site of AhR activation relative to local immune cells.
- Test the effect of specific beneficial microbial metabolites identified in the context on human primary macrophage polarization in an inflammatory environment.
- Perform longitudinal multi-omics profiling in patients undergoing microbiota-targeted therapies to establish causative links between taxa shifts and inflammatory biomarker reduction.

### Suggested Studies
- Longitudinal multi-omics RCT evaluating the effect of multi-strain probiotics on systemic inflammatory biomarkers in patients with metabolic syndrome.
- Comparative analysis of the microbiome composition between responders and non-responders to immunotherapy in non-small cell lung cancer patients, with a focus on SCFA production.
- Mechanistic evaluation of the gut-lung axis in patients with COPD who engage in structured exercise training versus sedentary lifestyle.
- A randomized controlled trial investigating the impact of specific synbiotic combinations on uremic solute profiles and systemic inflammation in stage 3-4 CKD patients.
- A comparative clinical study evaluating the gut-brain-immune signatures in patients with depression before and after vagus nerve stimulation to correlate microbiome shift with neurotransmitter and cytokine profiles.
- A longitudinal study tracking the gut-lung-immune axis in ICU patients to validate if Shenling Baizhu San (SLBZS) correlates with reduced incidence of ventilator-associated pneumonia.
- Large-scale prospective clinical trial evaluating the impact of gut-microbiome targeted interventions on systemic inflammatory status in metabolic syndrome patients.
- Integrative metagenomic and transcriptomic study to map the specific host-microbe signaling axes activated in chronic autoimmune patients undergoing dietary intervention.

### Swansons Literature Based Discovery Candidates
- Discovered Hypothesis (A to C): Microbiota-derived acetate can alleviate neurological inflammation and neurodegeneration induced by hypoxia via the upregulation of brain-derived neurotrophic factor (BDNF).
Literature A (Origin): Gut microbiota-derived acetate improves immunotherapy efficacy in melanoma (42463281).
Literature C (Target): Probiotics and gut microbiota modulation mitigate hypoxia-induced neuroinflammation and memory deficits (42472610).
The Intersecting Bridge B: Acetate / BDNF (Brain-Derived Neurotrophic Factor).
Biological Rationale: Acetate has been shown to cross the blood-brain barrier and modulate synaptic function and neurogenesis. Since both domains highlight microbial metabolites influencing neuro-immune signaling, acetate is a plausible intermediate to bridge the observed benefits of gut modulation in hypoxic brain injury.
- Discovered Hypothesis (A to C): Microbiota-derived lumichrome production by Lachnospiraceae may mitigate the pro-inflammatory systemic effects observed in early-stage chronic kidney disease.
Literature A (Origin): Lachnospiraceae anaerobically convert riboflavin into lumichrome, which exhibits anti-inflammatory properties (Source 42474292).
Literature C (Target): CKD patients exhibit accumulation of pro-inflammatory uremic solutes and systemic inflammation (Source 42465891).
The Intersecting Bridge B: Lumichrome's potential to suppress MAIT cell-mediated inflammation or directly influence mucosal immune tolerance.
Biological Rationale: Given that Lachnospiraceae are often depleted in CKD (F/B ratio shifts), restoring these specific vitamin-metabolizing taxa might provide a therapeutic anti-inflammatory metabolite (lumichrome) that counteracts the increase in pro-inflammatory uremic solutes.
- Enhancement of the TGR5 bile acid receptor pathway via specific microbiota-targeted bile acid modulation can mitigate systemic metabolic-associated fatty liver disease (MAFLD).
- Role of bile acids and TGR5 activation in maintaining intestinal immune tolerance in IBD (ID: 42481656).
- Gut-liver axis mechanism involving FXR/PPARα/CYP4A12A axis in MAFLD modulation (ID: 42477798).
- Bile acid transformation and FXR-signaling crosstalk.
- Since both IBD and MAFLD involve gut dysbiosis-mediated inflammatory progression linked to disrupted bile acid signaling, enhancing TGR5/FXR signaling via microbial modulation represents a shared therapeutic nexus that could cross-benefit both inflammatory phenotypes.

### Contradictions Between Evidences
- There is disagreement in the field regarding whether specific microbial species are universally beneficial or detrimental, as their effects are highly context-dependent, site-specific, and baseline-composition-dependent (e.g., 42484453, 42463873).
- There is no direct contradiction identified, but evidence regarding 'beneficial' strains shows inter-individual and context-dependent variability, highlighting that probiotics are not universal panaceas.
- There is a distinction in the role of GP2: ID 42486317 notes decreased GP2 in UC but preservation in CD, suggesting disease-specific roles in microbial interactions that contrast with broad-spectrum IBD claims in other literature.

### Repurposed Solutions
- Probiotic-derived postbiotics and bacterial extracellular vesicles represent a promising solution to circumvent the limitations of traditional, live-culture probiotic engraftment (42461923, 42489221).
- Probiotic-derived postbiotics (e.g., E. faecium supernatants) and purified exopolysaccharides (e.g., from L. plantarum ZZU-1) are identified as stabilized, non-living alternatives to traditional live probiotics for mitigating inflammation and oxidative stress.
- Probiotics and bile-acid modulating therapies, currently studied for intestinal health (IBD/IBS), show potential for distal organ protection (lung injury/atherosclerosis/MAFLD) by restoring the gut-systemic inflammatory axis.

## Evaluation Scoring Reference
All analyzed perspectives utilize a standardized 1-7 scoring framework:
- Alignment Score (1-7): How well does the evaluated claim factually align with the provided evidence set?
  [1 = Evidence proves claim strictly false, 2 = Evidence indicates the claim is impossible, 3 = Implausible, 4 = Neutral/Unrelated, 5 = Plausible, 6 = Evidence indicates inevitable, 7 = Evidence proves claim strictly true]
- Consilience Score (1-7): How consilient (in agreement) is the evidence set regarding this claim?
  [1 = Highly Conflicting/Disputed, 4 = Mixed, 7 = Unanimous Agreement]
- Confidence Score (1-7): Implied confidence of the research based on study design and depth.
  [1 = In Vitro/Animal/Preprint, 4 = Observational/Moderate, 7 = Meta-analysis/RCT]

## Evaluated Perspectives & Findings
### Perspective R1: Claim [Run1 Eval1 Synthesis] evaluated against Evidence [N/A]
- Alignment Score: 7/7
- Consilience Score: 7/7
- Directional Logic: High Score = SUPPORTS Original Claim
Even though this fact check looked at unique up-to-date abstracts, new evidence may refute this answer in the future. Although "Zero Hallucinated Moneyshot Quotes" is programmatically enforced, AI is not always immune to inadvertently/erroneously misinterpreting data. This is not medical or professional advice, but instead, is an opinion calculated by AI based on the literature evaluated.

###[CLAIM EVALUATED AND ANSWER TO USER]
"How does the gut microbiome modulate inflammation?"

### [ABSTRACT & REWRITTEN CLAIM]
The gut microbiome regulates inflammatory status through a complex, systems-level axis involving intestinal barrier integrity, metabolite production (such as short-chain fatty acids), and direct modulation of immune signaling pathways (e.g., NF-κB, TLR4). Dysbiosis—a state of microbial imbalance—triggers systemic inflammation via the translocation of bacterial products and the loss of immunoregulatory metabolites. Restoration of microbial homeostasis, through prebiotics, probiotics, or fecal microbiota transplantation, serves as an adjunctive therapeutic strategy to mitigate inflammation across diverse pathological conditions.

### [INTRODUCTION & JUSTIFICATION]
The gut microbiome functions as an evolutionary architect of host physiology, serving as a dynamic interface between the external environment and internal immunity. The gut microbiota plays a pivotal role in regulating host physiology, metabolism, and overall health. Under homeostatic conditions, commensal microorganisms maintain the intestinal epithelial barrier, preventing the translocation of inflammatory stimuli. However, when this equilibrium is disrupted, the resulting dysbiosis promotes disease. Microbial dysbiosis has been associated with chronic inflammation, immune modulation, altered cellular proliferation and apoptosis, and the production of carcinogenic metabolites which collectively shape the tumor microenvironment. 

A central mechanism of this modulation involves microbial metabolites—specifically short-chain fatty acids (SCFAs)—that regulate epigenetic and metabolic states. Concurrently, intestinal dysbiosis, characterized by loss of short-chain fatty acid-producing commensals and expansion of pro-inflammatory taxa, reshapes host metabolism and chromatin states through microbial-derived metabolites including short-chain fatty acids, secondary bile acids, and tryptophan catabolites. These metabolites directly influence pathways such as TLR4/MyD88/NF-κB. For instance, in models of endometritis, Z-d14CFR treatment significantly reduced the adhesion of E. coli to BEECs, promoted bacterial clearance in the uterus, and then downregulated the expression of pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α) and upregulated the expression of anti-inflammatory cytokine (IL-10) via inhibiting the TLR4/MyD88/NF-κB signaling pathway activation. 

Beyond metabolic signaling, the gut microbiome modulates the systemic inflammatory microenvironment. These findings demonstrate that the gut microbiota critically modulates the granuloma immune microenvironment, providing a robust platform and mechanistic support for gut microecological interventions as a host-directed therapy for TB. Furthermore, specific gut-derived vesicles modulate signaling at distal sites, as evidenced by findings that integrated transcriptomic and proteomic analyses identified caveolin (Cav1) and carboxylesterase 1d (Ces1d) as critical host targets of O-EVs. The microbiome even influences therapeutic responsiveness, such as immunotherapy, where among the SCFA, butyrate alone recapitulated the anti-tumor effect of inulin and had an additive effect when combined with αPD-1 therapy in a CD8⁺ T cell-dependent manner.

### [DISCUSSION: NOVEL & OVERLOOKED]
*   Microbiome dysbiosis is not merely an effect of disease but a proactive driver of systemic "inflammaging," particularly in conditions like chronic kidney disease.
*   The food microbiome acts as a historical and contemporary modulator of host immune and neuroactive functions, bridging external environment and internal physiology.
*   Specific bacterial metabolites, such as caproic acid derived from TGP, can uniquely restore immune cell subsets and immunothrombosis homeostasis.
*   The gut microbiota affects CNS status through the gut-brain axis; for instance, oral probiotics rescued memory deficits and reduced hippocampal HIF-1α accumulation in hypoxic mice.
*   Pro-inflammatory signaling is modulated by the gut through specific gene pathways, such as the suppression of NF-κB or the activation of the AHR/IL-22/STAT3 axis.
*   The gut-lung axis is a critical path for inflammatory control; exercise-responsive metabolites may mediate pulmonary health in COPD.
*   Even non-digestible carbohydrates derived from fermentation, such as oligofructans, show potent ability to reduce inflammatory taxa without toxicity.
*   Duodenal microbiota signatures are linked to specific N6-methyladenosine (m6A) epitranscriptomic modifications in common variable immunodeficiency.
*   Intratumoral bacteria can recruit neutrophils to stimulate tumor growth, highlighting that microbial influence is not restricted to the gut but persists at the tissue level.
*   The "bursa-independent" B-cell genesis pathway in the cecal tonsils is vital for gut-liver homeostasis and IgA-mediated defense.

### [EVIDENCE, METHODOLOGY & CITATIONS]
1. ID: 42391938 - Application: The text discusses the fundamental role of the microbiome in host regulation. - *"The gut microbiota plays a pivotal role in regulating host physiology, metabolism, and overall health."*
2. ID: 42486574 - Application: The text describes the link between dysbiosis and tumor environments. - *"Microbial dysbiosis has been associated with chronic inflammation, immune modulation, altered cellular proliferation and apoptosis, and the production of carcinogenic metabolites which collectively shape the tumor microenvironment."*
3. ID: 42480325 - Application: The text reports on antimicrobial peptide modulation of the TLR4/MyD88/NF-κB pathway. - *"Z-d14CFR treatment significantly reduced the adhesion of E. coli to BEECs, promoted bacterial clearance in the uterus, and then downregulated the expression of pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α) and upregulated the expression of anti-inflammatory cytokine (IL-10) via inhibiting the TLR4/MyD88/NF-κB signaling pathway activation."*
4. ID: 42482934 - Application: The text identifies Cav1 and Ces1d as targets of bacterial extracellular vesicles. - *"Integrated transcriptomic and proteomic analyses identified caveolin (Cav1) and carboxylesterase 1d (Ces1d) as critical host targets of O-EVs."*
5. ID: 42455659 - Application: The text links B-cell development to gut-liver axis homeostasis. - *"Inhibition of CXCR4+ cell influx from the BM impaired formation of the FR, altered the responsiveness of intestinal IgA to commensal bacteria, promoted gut dysbiosis, allowed translocation of pathogenic bacteria (e.g., Streptococcus alactolyticus) to the liver, and ultimately caused hepatic inflammation and metabolic dysfunction."*
6. ID: 42488670 - Application: The text notes the association between gut bacterial genera and m6A modifications. - *"Sparse canonical correlation models demonstrated significant associations between specific duodenal bacterial genera and m6A-modified transcripts in CVID, but not in controls, whereas expression levels of the examined m6A-regulating enzymes did not differ between groups."*
7. ID: 42454784 - Application: The text describes the additive effect of butyrate in immunotherapy. - *"Among the SCFA, butyrate alone recapitulated the anti-tumor effect of inulin and had an additive effect when combined with αPD-1 therapy in a CD8⁺ T cell-dependent manner."*
8. ID: 42464117 - Application: The text explains the gut microbiome-epigenome-metabolic axis. - *"Concurrently, intestinal dysbiosis, characterized by loss of short-chain fatty acid-producing commensals and expansion of pro-inflammatory taxa, reshapes host metabolism and chromatin states through microbial-derived metabolites including short-chain fatty acids, secondary bile acids, and tryptophan catabolites."*
9. ID: 42485957 - Application: The text defines the scope of the food microbiome. - *"The food microbiome, comprising microorganisms present in foods and fermentation, links diet, environment, and host physiology."*
10. ID: 42489221 - Application: The text notes the shift in bacterial vesicles in COVID-19. - *"Patients with COVID-19 exhibited altered gut microbiota composition and the profile of bacterial DNA-containing BEVs (dcBEVs) release compared to healthy controls."*
11. ID: 42444969 - Application: The text links exercise, gut microbiota, and COPD symptoms. - *"Emerging evidence suggests that exercise may improve COPD-related symptoms and quality of life not only through direct cardiopulmonary adaptations but also by reshaping gut microbiota composition and metabolic function."*
12. ID: 42486836 - Application: The text highlights the efficacy of methyl syringate in ameliorating colitis. - *"MS treatment significantly ameliorated DSS-induced body weight loss, colon shortening, increased DAI score and histological inflammation score, and intestinal pathologies in mice."*
13. ID: 42471164 - Application: The text notes the anti-inflammatory effect of LP15-1. - *"Dietary supplementation with LP15-1 alleviated intestinal inflammation and was associated with alterations in the experimental model."*
14. ID: 42481155 - Application: The text discusses the pro-tumorigenic role of intratumoral bacteria. - *"Functional studies demonstrated that C. leadbetteri alone is sufficient to induce epithelial hyperproliferation and a protumorigenic inflammatory niche, and it promotes established OSCC progression."*
15. ID: 42476197 - Application: The text describes the role of the gut microbiota in granuloma immune microenvironments. - *"These findings demonstrate that the gut microbiota critically modulates the granuloma immune microenvironment, providing a robust platform and mechanistic support for gut microecological interventions as a host-directed therapy for TB."*
16. ID: 42443904 - Application: The text explains the protective role of lactate in asthma. - *"Administration of lactate could significantly ameliorate allergic airway inflammation including Th2 cytokines, inflammatory cell infiltration, histopathological morphological changes together with eosinophil extracellular traps (EETs) formation in a mouse model of asthma."*
17. ID: 42472610 - Application: The text discusses the effect of probiotic supplementation in chronic hypoxia. - *"In this study, C57BL/6 mice were exposed to 12% O2 for 2 months and received oral probiotics supplementation, which rescued short-term memory deficits in the novel object recognition test, reduced hippocampal HIF-1α accumulation, restored prolyl hydroxylase domain protein 2 (PHD2) and ubiquitin-proteasome pathway, and attenuated neuroinflammation and apoptosis, while elevating brain-derived neurotrophic factor (BDNF)."*
18. ID: 42461923 - Application: The text reports on postbiotic effects of Enterococcus faecium. - *"Several intestinal immune markers-mucin 2 (MUC2, p = 0.001), occludin (OCLN, p 

### Perspective R2: Claim [Run2 Eval1 Synthesis] evaluated against Evidence [N/A]
- Alignment Score: 7/7
- Consilience Score: 7/7
- Directional Logic: High Score = SUPPORTS Original Claim
Even though this fact check looked at unique up-to-date abstracts, new evidence may refute this answer in the future. Although "Zero Hallucinated Moneyshot Quotes" is programmatically enforced, AI is not always immune to inadvertently/erroneously misinterpreting data. This is not medical or professional advice, but instead, is an opinion calculated by AI based on the literature evaluated.

###[CLAIM EVALUATED AND ANSWER TO USER]
"How does the gut microbiome modulate inflammation?"

### [ABSTRACT & REWRITTEN CLAIM]
The gut microbiome regulates systemic and local inflammatory responses through the modulation of epithelial barrier integrity, the production of bioactive metabolites (e.g., SCFAs, bile acids, tryptophan derivatives), and the activation of specific host immune signaling pathways (e.g., NF-κB, AhR, NLRP3). Dysbiosis disrupts these processes, facilitating the translocation of pro-inflammatory microbial products and triggering chronic low-grade inflammation.

### [INTRODUCTION & JUSTIFICATION]
The gut microbiome serves as a central hub for host immune regulation. When homeostatic balance is maintained, microbial communities support the intestinal epithelial barrier, preventing the translocation of pro-inflammatory pathogen-associated molecular patterns (PAMPs). Mechanistically, commensal microbes modulate immune cell polarization and suppress inflammatory pathways through metabolites such as short-chain fatty acids (SCFAs), secondary bile acids, and indole derivatives. Conversely, dysbiosis leads to barrier breakdown, allowing systemic exposure to lipopolysaccharides (LPS), which activates innate immune receptors such as Toll-like receptors (TLR4) and the NF-κB signaling cascade. This results in the release of pro-inflammatory cytokines, including IL-6 and TNF-α, propagating systemic inflammation. Therapeutic interventions—including probiotics, prebiotics, and fecal microbiota transplantation—aim to restore this homeostasis by enriching beneficial taxa, such as *Lactobacillus* or *Bifidobacterium*, which reinforce barrier proteins and shift the host immune profile toward an anti-inflammatory state.

### [DISCUSSION: NOVEL & OVERLOOKED]
*   The gut microbiome can influence organ-specific pathologies, such as hepatic steatosis and neuroinflammation, through bidirectional axes (e.g., gut-liver, gut-brain).
*   Microbe-derived metabolites, such as lumichrome, suggest that vitamin catabolism is a regulatory mechanism for dampening inflammation.
*   Probiotics can act via the "gut-lung axis" to mitigate severe inflammatory events like sepsis-induced lung injury.
*   The immune modulatory effects of probiotics can be strain-specific, requiring precise mapping of microbial taxa to host receptors.
*   Microbial metabolite landscapes are arguably as important as taxonomic composition in defining the host's inflammatory state.
*   Host-microbe immune signatures, such as IgA responses, are critical indicators of the immunological impact of the gut microenvironment.
*   Targeted silencing of inflammatory receptors using engineered bacterial nanovesicles represents a high-precision future direction for gut-mediated immunomodulation.

### [EVIDENCE, METHODOLOGY & CITATIONS]
1. ID: 42488663 - Application: Links gut metabolites to joint homeostasis. - "Available evidence is synthesized to clarify how gut microbiota dysbiosis and its metabolites contribute to systemic inflammation and disrupt joint homeostasis through specific pathways, such as the GUDCA-FXR-GLP-1 axis."
2. ID: 42488628 - Application: Defines mechanistic immune pathways activated by dysbiosis. - "These processes may activate Toll-like receptor, NF-κB, NLRP3 inflammasome, aryl hydrocarbon receptor and JAK/STAT pathways, thereby reshaping macrophage polarisation, Th17/Treg balance"
3. ID: 42488628 - Application: Summarizes how dysbiosis impairs barrier and systemic immunity. - "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
4. ID: 42488571 - Application: Explains translocation of PAMPs and cytokine release. - "Dysbiosis can compromise the integrity of the intestinal barrier, increasing permeability and the translocation of pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharides (LPS), thereby releasing inflammatory cytokines, including IL-6 and TNF-α."
5. ID: 42488422 - Application: Notes the restorative potential of probiotics on cytokines. - "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
6. ID: 42478338 - Application: Documents hepatoprotective mechanisms of NMN through barrier restoration. - "NMN supplementation attenuated AFB1-induced liver injury, inflammation and oxidative stress, while restoring intestinal barrier integrity and reducing hepatic bile acids accumulation."
7. ID: 42477751 - Application: Details specific tight junction regulation by probiotic intervention. - "Mechanistically, the combination enhanced the intestinal barrier by upregulating the tight junction protein zona occludens-1 (ZO-1), reducing the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and increasing the levels of interleukin-10 (IL-10) by inhibiting nuclear factor-kappa B (NF-κB) activation."
8. ID: 42486578 - Application: Highlights NF-κB activation in oral-systemic inflammatory links. - "This chapter explores the significant role of oral microbiome dysbiosis in oral squamous cell carcinoma (OSCC) pathogenesis, highlighting mechanisms such as chronic inflammation via NF-κB activation by Porphyromonas gingivalis and Fusobacterium nucleatum"
9. ID: 42484668 - Application: Describes nerve-heart-microbiota axis in inflammation. - "MDN correlated with restoration of colonic tight junction protein expression, reduced myocardial NLRP3 inflammasome activation, and decreased systemic inflammation (LPS, TNF-α, IL-6)."
10. ID: 42474008 - Application: Identifies metabolites impacting vascular inflammation. - "Bile acids, Short-Chain Fatty Acids (SCFAs), and trimethylamine-N-oxide (TMAO) are examples of gut-derived metabolites that majorly impact inflammation, endothelial dysfunction, and plaque formation."
11. ID: 42480452 - Application: Explains the indole-AhR inflammatory signaling axis. - "Notably, oral IPA supplementation rescued behavioral deficits and attenuated gut-brain inflammatory alterations, restoring intestinal aryl hydrocarbon receptor (AhR) nuclear translocation, reducing LPS and cytokine levels, and ameliorating hippocampal inflammatory phenotypes."
12. ID: 42476444 - Application: Notes impact of toxic exposure on gut-brain inflammatory homeostasis. - "Our results indicate that sublethal exposure to a VX disrupts the HPA axis and the intestinal homeostasis as evidenced by local inflammation, structural changes and gut microbiota shifts."
13. ID: 42472494 - Application: Shows macrophage-targeted reduction of systemic cytokines. - "After S. aureus challenge, peritoneal macrophages from mSEB mice showed lower pro-inflammatory TNF-α, IL-6 and IL-1β transcripts, consistent with attenuated systemic inflammation."
14. ID: 42482368 - Application: Links HDAC/NF-κB inhibition to glycosylation. - "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity. Importantly, L. casei also modulated histone deacetylase (HDAC) expression and inhibited NF-κB pathway activation"
15. ID: 42480345 - Application: Connects TLR expression to microbial diversity in feral chickens. - "The upregulation of ileal TLR4 and TLR5 in feral chickens correlated with Gram-negative and flagellated Proteobacteria, respectively."
16. ID: 42474292 - Application: Explains vitamin catabolism as an anti-inflammatory mechanism. - "Furthermore, riboflavin catabolites have recently been shown to inhibit host mucosal-associated invariant T (MAIT) cell activation, suggesting an additional mechanism by which commensal Lachnospiraceae may dampen inflammation."
17. ID: 42461462 - Application: Documents the gut as an initial barrier against toxins. - "We hypothesize that the intestine acts as an initial defense barrier against PAT, but with prolonged exposure, disruption of the gut microbiota impairs this detoxification process. Consequently, excess unmetabolized PAT enters the liver via enterohepatic circulation, triggering hepatic inflammation and oxidative damage."
18. ID: 42476998 - Application: Probiotic modulation of autophagy for anti-inflammatory defense. - "Here, we screened 35 lactic acid bacteria and identified Lactobacillus fermentum 2-14 as the most effective strain in restoring Caco-2 cell viability and reducing LDH cytotoxicity under MGO challenge."
19. ID: 42471164 - Application: Documents cytokine reduction by LP15-1. - "Mechanistically, LP15-1 reduced the concentrations of pro-inflammatory cytokines, including interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), interleukin-17 (IL-17), and interleukin-1 beta (IL-1β), in both serum and ileal tissue."
20. ID: 42464327 - Application: Metabolite landscapes modulating inflammatory pathways. - "They also inhibited cell migration, accompanied by suppression of inflammatory signaling pathways including IL-6, IL-1β, NF-κB, and HIF-1α."



### Perspective R3: Claim [Run3 Eval1 Synthesis] evaluated against Evidence [N/A]
- Alignment Score: 7/7
- Consilience Score: 7/7
- Directional Logic: High Score = SUPPORTS Original Claim
Even though this fact check looked at unique up-to-date abstracts, new evidence may refute this answer in the future. Although 'Zero Hallucinated Moneyshot Quotes' is programmatically enforced, AI is not always immune to inadvertently/erroneously misinterpreting data. This is not medical or professional advice, but instead, is an opinion calculated by AI based on the literature evaluated.

###[CLAIM EVALUATED AND ANSWER TO USER]
How does the gut microbiome modulate inflammation?

### [ABSTRACT & REWRITTEN CLAIM]
The gut microbiome regulates host inflammation through a multifaceted system involving the maintenance of barrier integrity, the production of bioactive metabolites (e.g., SCFAs, tryptophan derivatives, bile acids), and the modulation of immune signaling pathways (e.g., NF-κB, NLRP3, AHR). Dysbiosis leads to barrier impairment, resulting in the translocation of microbial products (e.g., LPS) that drive systemic inflammatory responses and chronic immune activation.

### [INTRODUCTION & JUSTIFICATION]
The gut microbiome functions as a central regulatory node in systemic immune homeostasis. Under eubiotic conditions, the microbiota maintains intestinal barrier integrity through the production of short-chain fatty acids (SCFAs), which are critical for mucosal immune balance. Disruption of this microbial homeostasis, or dysbiosis, compromises the intestinal barrier, facilitating the translocation of pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharides (LPS). Once systemic, these microbial products serve as potent triggers for inflammatory cascades. Specifically, PAMPs activate Toll-like receptors (TLRs), leading to the activation of the NF-κB signaling pathway and the NLRP3 inflammasome, which promote the secretion of pro-inflammatory cytokines such as TNF-α, IL-6, and IL-1β. Conversely, targeted interventions—such as probiotics, prebiotics, and phytochemicals—can reverse these shifts by restoring microbial diversity, enhancing the production of anti-inflammatory metabolites, and suppressing these pro-inflammatory pathways to restore mucosal barrier function and systemic homeostasis.

### [DISCUSSION: NOVEL & OVERLOOKED]
*   **Nano-messenger Communication:** Bacterial extracellular vesicles (BEVs) act as essential nanoscale messengers that facilitate direct communication between the gut microbiota and distant organs, such as joints and the brain.
*   **Prebiotic-like Flavonoids:** Compounds like galangin do not act primarily through direct antimicrobial action but by modulating the microbiome to enrich specific beneficial metabolites like indole-3-lactic acid (ILA), which activates the aryl hydrocarbon receptor (AHR) to suppress inflammation.
*   **Bitter Taste Transduction:** Bitter taste receptors (T2Rs) in non-taste tissues (e.g., renal tissue) are involved in neuroimmune regulation; probiotics can alleviate inflammation by activating these transduction pathways.
*   **Metabolic Synergy:** Bacterial-host co-metabolism, such as the conversion of primary to secondary bile acids, is crucial for activating TGR5 receptors and maintaining immune tolerance.
*   **Surgical Impact:** Perioperative broad-spectrum antibiotic usage can deplete commensal communities and exacerbate inflammatory responses by enabling suture-associated polymicrobial biofilms.
*   **Circadian Clock Linkage:** The circadian rhythm gene *BMAL1* is downregulated in colitis and its deletion induces pyroptosis, linking internal biological clocks directly to intestinal epithelial barrier integrity.
*   **Phage Metabolic Switches:** Bacteriophages act as metabolic switches in the microbiome, governing microbial metabolic states through lytic nutrient release and lysogenic gene delivery that can mitigate oxidative stress.
*   **Diet-Microbiome-Neuro Axis:** Certain diets (measured by the DI-GM index) correlate with lower GERD risk, partially mediated by phenotypic age acceleration and adiposity-related systemic markers.

### [EVIDENCE, METHODOLOGY & CITATIONS]
1. ID: 42489692 - "Curcumin inhibited LPS- and Salmonella-induced NF-κB activation in J774-Dual/RAW264.7 macrophages, decreased IL-1β, IL-6 and TNF-α, increased IL-10, and reduced lactate dehydrogenase release by over 35%."
2. ID: 42489221 - "BEVs from patients, but not from healthy individuals, significantly changed cytokine levels in U937 monocyte cells."
3. ID: 42488663 - "Bacterial extracellular vesicles are further highlighted as essential nanoscale messengers facilitating communication between the gut and joints."
4. ID: 42488628 - "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
5. ID: 42488422 - "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
6. ID: 42488218 - "BSO also attenuated liver injury, hepatic steatosis, inflammation."
7. ID: 42487937 - "MMGAP alleviates LFJ OA through gut microbiota reshaping, serum metabolomic reprogramming, and mTORC1 pathway inhibition."
8. ID: 42487140 - "YFB administration dose-dependently improved disease activity index, colon shortening, and histopathology in colitis mice."
9. ID: 42486639 - "DHT exerts its anti-atherosclerotic effects by simultaneously improving lipid metabolism, inhibiting NLRP3 inflammasome activation, and restoring gut microbial homeostasis."
10. ID: 42484923 - "FUT2 is an important node connecting host glycosylation, microbial ecology and intestinal immune homeostasis, but its value as a direct therapeutic or biomarker target in IBD remains exploratory."
11. ID: 42484668 - "MDN improves cardiac function in MI-induced CHF, alongside inhibition of mesenteric sympathetic activity, restoration of intestinal barrier function, reduction of inflammation, and modulation of gut microbiota and metabolic profiles."
12. ID: 42483178 - "Sarcandra glabra exhibits multiple pharmacological activities relevant to digestive system diseases, including anti-inflammatory, antibacterial, gastroprotective, and immunomodulatory effects."
13. ID: 42482584 - "Its mechanism may be associated with regulating gut microbiota diversity, optimizing microbiota structure, reducing inflammatory factor levels, and improving neurotransmitter metabolism."
14. ID: 42482368 - "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity."
15. ID: 42481656 - "It has been suggested that a disturbed bile acid profile in inflammatory bowel disease (IBD) might lead to inflammation via reduced activation of TGR5."
16. ID: 42481422 - "Compared with controls (n=712), participants with SHOA (n=52) exhibited significantly lower oral microbial richness (p=0.007) and altered composition (p=0.007)."
17. ID: 42480795 - "FMT alleviates IBS-C partly through Mertk-dependent immune regulation and AKT-GSK3β activation."
18. ID: 42480691 - "The protective effect of multi-strain probiotics on OVA-inhaled mice is correlated with the activation of bitter taste transduction, as well as the regulation of immune balance and inflammatory responses."
19. ID: 42479266 - "Probiotic supplementation during nutritional rehabilitation significantly improved body weight gain, restored protein and albumin levels, normalized alkaline phosphatase activity, and reduced inflammatory and hepatic injury markers compared with dietary rehabilitation alone."
20. ID: 42478557 - "In contrast, EEN mice treated with TGF-β formula presented faster weight recovery and decreased inflammatory parameters, with a normalized intestinal permeability, suggesting gut restitution and functionality."



## Logical Systems Map (Logical Gates)
- "Microbial Dysbiosis" -> "Permeability"
- "Permeability" -> "Bacterial Translocation"
- "Bacterial Translocation" -> "Toll-Like Receptor 4"
- "Toll-Like Receptor 4" -> "Systemic Inflammatory Response"
- "Gastrointestinal Microbiome" -> "Intestinal Mucosa"
- "Intestinal Mucosa" -> "Bacterial Translocation"
- "Bacterial Translocation" -> "Inflammation"
- "Inflammation" -> "Cytokines"
- "Dysbiosis" -> "Permeability"
- "Inflammation" -> "Cytokine Release Syndrome"

## Verified Verbatim Quotes
- "The gut microbiota plays a pivotal role in regulating host physiology, metabolism, and overall health."
- "Microbial dysbiosis has been associated with chronic inflammation, immune modulation, altered cellular proliferation and apoptosis, and the production of carcinogenic metabolites which collectively shape the tumor microenvironment."
- "Z-d14CFR treatment significantly reduced the adhesion of E. coli to BEECs, promoted bacterial clearance in the uterus, and then downregulated the expression of pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α) and upregulated the expression of anti-inflammatory cytokine (IL-10) via inhibiting the TLR4/MyD88/NF-κB signaling pathway activation."
- "Integrated transcriptomic and proteomic analyses identified caveolin (Cav1) and carboxylesterase 1d (Ces1d) as critical host targets of O-EVs."
- "Inhibition of CXCR4+ cell influx from the BM impaired formation of the FR, altered the responsiveness of intestinal IgA to commensal bacteria, promoted gut dysbiosis, allowed translocation of pathogenic bacteria (e.g., Streptococcus alactolyticus) to the liver, and ultimately caused hepatic inflammation and metabolic dysfunction."
- "Sparse canonical correlation models demonstrated significant associations between specific duodenal bacterial genera and m6A-modified transcripts in CVID, but not in controls, whereas expression levels of the examined m6A-regulating enzymes did not differ between groups."
- "Among the SCFA, butyrate alone recapitulated the anti-tumor effect of inulin and had an additive effect when combined with αPD-1 therapy in a CD8⁺ T cell-dependent manner."
- "Concurrently, intestinal dysbiosis, characterized by loss of short-chain fatty acid-producing commensals and expansion of pro-inflammatory taxa, reshapes host metabolism and chromatin states through microbial-derived metabolites including short-chain fatty acids, secondary bile acids, and tryptophan catabolites."
- "The food microbiome, comprising microorganisms present in foods and fermentation, links diet, environment, and host physiology."
- "Patients with COVID-19 exhibited altered gut microbiota composition and the profile of bacterial DNA-containing BEVs (dcBEVs) release compared to healthy controls."
- "Emerging evidence suggests that exercise may improve COPD-related symptoms and quality of life not only through direct cardiopulmonary adaptations but also by reshaping gut microbiota composition and metabolic function."
- "MS treatment significantly ameliorated DSS-induced body weight loss, colon shortening, increased DAI score and histological inflammation score, and intestinal pathologies in mice."
- "Dietary supplementation with LP15-1 alleviated intestinal inflammation and was associated with alterations in the experimental model."
- "Functional studies demonstrated that C. leadbetteri alone is sufficient to induce epithelial hyperproliferation and a protumorigenic inflammatory niche, and it promotes established OSCC progression."
- "These findings demonstrate that the gut microbiota critically modulates the granuloma immune microenvironment, providing a robust platform and mechanistic support for gut microecological interventions as a host-directed therapy for TB."
- "Administration of lactate could significantly ameliorate allergic airway inflammation including Th2 cytokines, inflammatory cell infiltration, histopathological morphological changes together with eosinophil extracellular traps (EETs) formation in a mouse model of asthma."
- "In this study, C57BL/6 mice were exposed to 12% O2 for 2 months and received oral probiotics supplementation, which rescued short-term memory deficits in the novel object recognition test, reduced hippocampal HIF-1α accumulation, restored prolyl hydroxylase domain protein 2 (PHD2) and ubiquitin-proteasome pathway, and attenuated neuroinflammation and apoptosis, while elevating brain-derived neurotrophic factor (BDNF)."
- "The gut microbiota plays a pivotal role in regulating host physiology, metabolism, and overall health."
- "Microbial dysbiosis has been associated with chronic inflammation, immune modulation, altered cellular proliferation and apoptosis, and the production of carcinogenic metabolites which collectively shape the tumor microenvironment."
- "Z-d14CFR treatment significantly reduced the adhesion of E. coli to BEECs, promoted bacterial clearance in the uterus, and then downregulated the expression of pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α) and upregulated the expression of anti-inflammatory cytokine (IL-10) via inhibiting the TLR4/MyD88/NF-κB signaling pathway activation."
- "Integrated transcriptomic and proteomic analyses identified caveolin (Cav1) and carboxylesterase 1d (Ces1d) as critical host targets of O-EVs."
- "Inhibition of CXCR4+ cell influx from the BM impaired formation of the FR, altered the responsiveness of intestinal IgA to commensal bacteria, promoted gut dysbiosis, allowed translocation of pathogenic bacteria (e.g., Streptococcus alactolyticus) to the liver, and ultimately caused hepatic inflammation and metabolic dysfunction."
- "Sparse canonical correlation models demonstrated significant associations between specific duodenal bacterial genera and m6A-modified transcripts in CVID, but not in controls, whereas expression levels of the examined m6A-regulating enzymes did not differ between groups."
- "Among the SCFA, butyrate alone recapitulated the anti-tumor effect of inulin and had an additive effect when combined with αPD-1 therapy in a CD8⁺ T cell-dependent manner."
- "Concurrently, intestinal dysbiosis, characterized by loss of short-chain fatty acid-producing commensals and expansion of pro-inflammatory taxa, reshapes host metabolism and chromatin states through microbial-derived metabolites including short-chain fatty acids, secondary bile acids, and tryptophan catabolites."
- "The food microbiome, comprising microorganisms present in foods and fermentation, links diet, environment, and host physiology."
- "Patients with COVID-19 exhibited altered gut microbiota composition and the profile of bacterial DNA-containing BEVs (dcBEVs) release compared to healthy controls."
- "Emerging evidence suggests that exercise may improve COPD-related symptoms and quality of life not only through direct cardiopulmonary adaptations but also by reshaping gut microbiota composition and metabolic function."
- "MS treatment significantly ameliorated DSS-induced body weight loss, colon shortening, increased DAI score and histological inflammation score, and intestinal pathologies in mice."
- "Dietary supplementation with LP15-1 alleviated intestinal inflammation and was associated with alterations in the experimental model."
- "Functional studies demonstrated that C. leadbetteri alone is sufficient to induce epithelial hyperproliferation and a protumorigenic inflammatory niche, and it promotes established OSCC progression."
- "These findings demonstrate that the gut microbiota critically modulates the granuloma immune microenvironment, providing a robust platform and mechanistic support for gut microecological interventions as a host-directed therapy for TB."
- "Administration of lactate could significantly ameliorate allergic airway inflammation including Th2 cytokines, inflammatory cell infiltration, histopathological morphological changes together with eosinophil extracellular traps (EETs) formation in a mouse model of asthma."
- "In this study, C57BL/6 mice were exposed to 12% O2 for 2 months and received oral probiotics supplementation, which rescued short-term memory deficits in the novel object recognition test, reduced hippocampal HIF-1α accumulation, restored prolyl hydroxylase domain protein 2 (PHD2) and ubiquitin-proteasome pathway, and attenuated neuroinflammation and apoptosis, while elevating brain-derived neurotrophic factor (BDNF)."
- "Several intestinal immune markers-mucin 2 (MUC2, p = 0.001), occludin (OCLN, p < 0.001), and interleukin-10 (IL-10, p < 0.001)-were significantly higher in the JB00008 group."
- "Together, these data show that microbiome colonization buffers septic outcomes by reshaping systemic inflammatory and metabolic programs and identify TLR2 as a key node linking microbial colonization to effective host defense during nontuberculous mycobacterial infection."
- "Sequences pertaining to C. difficile were detected in oral samples, with significantly more observed in periodontal disease compared to healthy cohorts."
- "Available evidence is synthesized to clarify how gut microbiota dysbiosis and its metabolites contribute to systemic inflammation and disrupt joint homeostasis through specific pathways, such as the GUDCA-FXR-GLP-1 axis."
- "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
- "These processes may activate Toll-like receptor, NF-κB, NLRP3 inflammasome, aryl hydrocarbon receptor and JAK/STAT pathways, thereby reshaping macrophage polarisation, Th17/Treg balance"
- "Dysbiosis can compromise the integrity of the intestinal barrier, increasing permeability and the translocation of pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharides (LPS), thereby releasing inflammatory cytokines, including IL-6 and TNF-α."
- "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
- "NMN supplementation attenuated AFB1-induced liver injury, inflammation and oxidative stress, while restoring intestinal barrier integrity and reducing hepatic bile acids accumulation."
- "Mechanistically, the combination enhanced the intestinal barrier by upregulating the tight junction protein zona occludens-1 (ZO-1), reducing the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and increasing the levels of interleukin-10 (IL-10) by inhibiting nuclear factor-kappa B (NF-κB) activation."
- "This chapter explores the significant role of oral microbiome dysbiosis in oral squamous cell carcinoma (OSCC) pathogenesis, highlighting mechanisms such as chronic inflammation via NF-κB activation by Porphyromonas gingivalis and Fusobacterium nucleatum"
- "MDN correlated with restoration of colonic tight junction protein expression, reduced myocardial NLRP3 inflammasome activation, and decreased systemic inflammation (LPS, TNF-α, IL-6)."
- "Bile acids, Short-Chain Fatty Acids (SCFAs), and trimethylamine-N-oxide (TMAO) are examples of gut-derived metabolites that majorly impact inflammation, endothelial dysfunction, and plaque formation."
- "Notably, oral IPA supplementation rescued behavioral deficits and attenuated gut-brain inflammatory alterations, restoring intestinal aryl hydrocarbon receptor (AhR) nuclear translocation, reducing LPS and cytokine levels, and ameliorating hippocampal inflammatory phenotypes."
- "Our results indicate that sublethal exposure to a VX disrupts the HPA axis and the intestinal homeostasis as evidenced by local inflammation, structural changes and gut microbiota shifts."
- "After S. aureus challenge, peritoneal macrophages from mSEB mice showed lower pro-inflammatory TNF-α, IL-6 and IL-1β transcripts, consistent with attenuated systemic inflammation."
- "Oral βG@Apr-WPG NMs administration outperformed free apremilast by restoring gut barrier integrity, reducing histopathological damage, and modulating microbial dysbiosis. Systemic inflammation and neuroinflammation were markedly suppressed."
- "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity. Importantly, L. casei also modulated histone deacetylase (HDAC) expression and inhibited NF-κB pathway activation"
- "The upregulation of ileal TLR4 and TLR5 in feral chickens correlated with Gram-negative and flagellated Proteobacteria, respectively."
- "Furthermore, riboflavin catabolites have recently been shown to inhibit host mucosal-associated invariant T (MAIT) cell activation, suggesting an additional mechanism by which commensal Lachnospiraceae may dampen inflammation."
- "We hypothesize that the intestine acts as an initial defense barrier against PAT, but with prolonged exposure, disruption of the gut microbiota impairs this detoxification process. Consequently, excess unmetabolized PAT enters the liver via enterohepatic circulation, triggering hepatic inflammation and oxidative damage."
- "Available evidence is synthesized to clarify how gut microbiota dysbiosis and its metabolites contribute to systemic inflammation and disrupt joint homeostasis through specific pathways, such as the GUDCA-FXR-GLP-1 axis."
- "These processes may activate Toll-like receptor, NF-κB, NLRP3 inflammasome, aryl hydrocarbon receptor and JAK/STAT pathways, thereby reshaping macrophage polarisation, Th17/Treg balance"
- "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
- "Dysbiosis can compromise the integrity of the intestinal barrier, increasing permeability and the translocation of pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharides (LPS), thereby releasing inflammatory cytokines, including IL-6 and TNF-α."
- "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
- "NMN supplementation attenuated AFB1-induced liver injury, inflammation and oxidative stress, while restoring intestinal barrier integrity and reducing hepatic bile acids accumulation."
- "Mechanistically, the combination enhanced the intestinal barrier by upregulating the tight junction protein zona occludens-1 (ZO-1), reducing the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and increasing the levels of interleukin-10 (IL-10) by inhibiting nuclear factor-kappa B (NF-κB) activation."
- "This chapter explores the significant role of oral microbiome dysbiosis in oral squamous cell carcinoma (OSCC) pathogenesis, highlighting mechanisms such as chronic inflammation via NF-κB activation by Porphyromonas gingivalis and Fusobacterium nucleatum"
- "MDN correlated with restoration of colonic tight junction protein expression, reduced myocardial NLRP3 inflammasome activation, and decreased systemic inflammation (LPS, TNF-α, IL-6)."
- "Bile acids, Short-Chain Fatty Acids (SCFAs), and trimethylamine-N-oxide (TMAO) are examples of gut-derived metabolites that majorly impact inflammation, endothelial dysfunction, and plaque formation."
- "Notably, oral IPA supplementation rescued behavioral deficits and attenuated gut-brain inflammatory alterations, restoring intestinal aryl hydrocarbon receptor (AhR) nuclear translocation, reducing LPS and cytokine levels, and ameliorating hippocampal inflammatory phenotypes."
- "Our results indicate that sublethal exposure to a VX disrupts the HPA axis and the intestinal homeostasis as evidenced by local inflammation, structural changes and gut microbiota shifts."
- "After S. aureus challenge, peritoneal macrophages from mSEB mice showed lower pro-inflammatory TNF-α, IL-6 and IL-1β transcripts, consistent with attenuated systemic inflammation."
- "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity. Importantly, L. casei also modulated histone deacetylase (HDAC) expression and inhibited NF-κB pathway activation"
- "The upregulation of ileal TLR4 and TLR5 in feral chickens correlated with Gram-negative and flagellated Proteobacteria, respectively."
- "Furthermore, riboflavin catabolites have recently been shown to inhibit host mucosal-associated invariant T (MAIT) cell activation, suggesting an additional mechanism by which commensal Lachnospiraceae may dampen inflammation."
- "We hypothesize that the intestine acts as an initial defense barrier against PAT, but with prolonged exposure, disruption of the gut microbiota impairs this detoxification process. Consequently, excess unmetabolized PAT enters the liver via enterohepatic circulation, triggering hepatic inflammation and oxidative damage."
- "Here, we screened 35 lactic acid bacteria and identified Lactobacillus fermentum 2-14 as the most effective strain in restoring Caco-2 cell viability and reducing LDH cytotoxicity under MGO challenge."
- "Mechanistically, LP15-1 reduced the concentrations of pro-inflammatory cytokines, including interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), interleukin-17 (IL-17), and interleukin-1 beta (IL-1β), in both serum and ileal tissue."
- "Available evidence is synthesized to clarify how gut microbiota dysbiosis and its metabolites contribute to systemic inflammation and disrupt joint homeostasis through specific pathways, such as the GUDCA-FXR-GLP-1 axis."
- "These processes may activate Toll-like receptor, NF-κB, NLRP3 inflammasome, aryl hydrocarbon receptor and JAK/STAT pathways, thereby reshaping macrophage polarisation, Th17/Treg balance"
- "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
- "Dysbiosis can compromise the integrity of the intestinal barrier, increasing permeability and the translocation of pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharides (LPS), thereby releasing inflammatory cytokines, including IL-6 and TNF-α."
- "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
- "NMN supplementation attenuated AFB1-induced liver injury, inflammation and oxidative stress, while restoring intestinal barrier integrity and reducing hepatic bile acids accumulation."
- "Mechanistically, the combination enhanced the intestinal barrier by upregulating the tight junction protein zona occludens-1 (ZO-1), reducing the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and increasing the levels of interleukin-10 (IL-10) by inhibiting nuclear factor-kappa B (NF-κB) activation."
- "This chapter explores the significant role of oral microbiome dysbiosis in oral squamous cell carcinoma (OSCC) pathogenesis, highlighting mechanisms such as chronic inflammation via NF-κB activation by Porphyromonas gingivalis and Fusobacterium nucleatum"
- "MDN correlated with restoration of colonic tight junction protein expression, reduced myocardial NLRP3 inflammasome activation, and decreased systemic inflammation (LPS, TNF-α, IL-6)."
- "Bile acids, Short-Chain Fatty Acids (SCFAs), and trimethylamine-N-oxide (TMAO) are examples of gut-derived metabolites that majorly impact inflammation, endothelial dysfunction, and plaque formation."
- "Notably, oral IPA supplementation rescued behavioral deficits and attenuated gut-brain inflammatory alterations, restoring intestinal aryl hydrocarbon receptor (AhR) nuclear translocation, reducing LPS and cytokine levels, and ameliorating hippocampal inflammatory phenotypes."
- "Our results indicate that sublethal exposure to a VX disrupts the HPA axis and the intestinal homeostasis as evidenced by local inflammation, structural changes and gut microbiota shifts."
- "After S. aureus challenge, peritoneal macrophages from mSEB mice showed lower pro-inflammatory TNF-α, IL-6 and IL-1β transcripts, consistent with attenuated systemic inflammation."
- "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity. Importantly, L. casei also modulated histone deacetylase (HDAC) expression and inhibited NF-κB pathway activation"
- "The upregulation of ileal TLR4 and TLR5 in feral chickens correlated with Gram-negative and flagellated Proteobacteria, respectively."
- "Furthermore, riboflavin catabolites have recently been shown to inhibit host mucosal-associated invariant T (MAIT) cell activation, suggesting an additional mechanism by which commensal Lachnospiraceae may dampen inflammation."
- "We hypothesize that the intestine acts as an initial defense barrier against PAT, but with prolonged exposure, disruption of the gut microbiota impairs this detoxification process. Consequently, excess unmetabolized PAT enters the liver via enterohepatic circulation, triggering hepatic inflammation and oxidative damage."
- "Here, we screened 35 lactic acid bacteria and identified Lactobacillus fermentum 2-14 as the most effective strain in restoring Caco-2 cell viability and reducing LDH cytotoxicity under MGO challenge."
- "Mechanistically, LP15-1 reduced the concentrations of pro-inflammatory cytokines, including interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), interleukin-17 (IL-17), and interleukin-1 beta (IL-1β), in both serum and ileal tissue."
- "They also inhibited cell migration, accompanied by suppression of inflammatory signaling pathways including IL-6, IL-1β, NF-κB, and HIF-1α."
- "Curcumin inhibited LPS- and Salmonella-induced NF-κB activation in J774-Dual/RAW264.7 macrophages, decreased IL-1β, IL-6 and TNF-α, increased IL-10, and reduced lactate dehydrogenase release by over 35%."
- "BEVs from patients, but not from healthy individuals, significantly changed cytokine levels in U937 monocyte cells."
- "Bacterial extracellular vesicles are further highlighted as essential nanoscale messengers facilitating communication between the gut and joints."
- "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
- "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
- "BSO also attenuated liver injury, hepatic steatosis, inflammation."
- "MMGAP alleviates LFJ OA through gut microbiota reshaping, serum metabolomic reprogramming, and mTORC1 pathway inhibition."
- "YFB administration dose-dependently improved disease activity index, colon shortening, and histopathology in colitis mice."
- "DHT exerts its anti-atherosclerotic effects by simultaneously improving lipid metabolism, inhibiting NLRP3 inflammasome activation, and restoring gut microbial homeostasis."
- "FUT2 is an important node connecting host glycosylation, microbial ecology and intestinal immune homeostasis, but its value as a direct therapeutic or biomarker target in IBD remains exploratory."
- "MDN improves cardiac function in MI-induced CHF, alongside inhibition of mesenteric sympathetic activity, restoration of intestinal barrier function, reduction of inflammation, and modulation of gut microbiota and metabolic profiles."
- "Sarcandra glabra exhibits multiple pharmacological activities relevant to digestive system diseases, including anti-inflammatory, antibacterial, gastroprotective, and immunomodulatory effects."
- "Its mechanism may be associated with regulating gut microbiota diversity, optimizing microbiota structure, reducing inflammatory factor levels, and improving neurotransmitter metabolism."
- "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity."
- "Curcumin inhibited LPS- and Salmonella-induced NF-κB activation in J774-Dual/RAW264.7 macrophages, decreased IL-1β, IL-6 and TNF-α, increased IL-10, and reduced lactate dehydrogenase release by over 35%."
- "BEVs from patients, but not from healthy individuals, significantly changed cytokine levels in U937 monocyte cells."
- "Bacterial extracellular vesicles are further highlighted as essential nanoscale messengers facilitating communication between the gut and joints."
- "Gut dysbiosis can impair intestinal barrier integrity, facilitate systemic exposure to microbial products such as lipopolysaccharide, disturb short-chain fatty acid, bile acid and tryptophan-derived metabolite profiles, and alter enteroendocrine and immune signalling."
- "Probiotic supplementation also restored gut microbiota diversity, reduced pro-inflammatory cytokines, and enhanced anti-inflammatory responses."
- "BSO also attenuated liver injury, hepatic steatosis, inflammation."
- "MMGAP alleviates LFJ OA through gut microbiota reshaping, serum metabolomic reprogramming, and mTORC1 pathway inhibition."
- "YFB administration dose-dependently improved disease activity index, colon shortening, and histopathology in colitis mice."
- "DHT exerts its anti-atherosclerotic effects by simultaneously improving lipid metabolism, inhibiting NLRP3 inflammasome activation, and restoring gut microbial homeostasis."
- "FUT2 is an important node connecting host glycosylation, microbial ecology and intestinal immune homeostasis, but its value as a direct therapeutic or biomarker target in IBD remains exploratory."
- "MDN improves cardiac function in MI-induced CHF, alongside inhibition of mesenteric sympathetic activity, restoration of intestinal barrier function, reduction of inflammation, and modulation of gut microbiota and metabolic profiles."
- "Sarcandra glabra exhibits multiple pharmacological activities relevant to digestive system diseases, including anti-inflammatory, antibacterial, gastroprotective, and immunomodulatory effects."
- "Its mechanism may be associated with regulating gut microbiota diversity, optimizing microbiota structure, reducing inflammatory factor levels, and improving neurotransmitter metabolism."
- "L. casei markedly increased O-GlcNAcylation of key immune signaling proteins, such as STAB1, by downregulating O-GlcNAcase (OGA) activity."
- "It has been suggested that a disturbed bile acid profile in inflammatory bowel disease (IBD) might lead to inflammation via reduced activation of TGR5."
- "Compared with controls (n=712), participants with SHOA (n=52) exhibited significantly lower oral microbial richness (p=0.007) and altered composition (p=0.007)."
- "FMT alleviates IBS-C partly through Mertk-dependent immune regulation and AKT-GSK3β activation."
- "The protective effect of multi-strain probiotics on OVA-inhaled mice is correlated with the activation of bitter taste transduction, as well as the regulation of immune balance and inflammatory responses."
- "Probiotic supplementation during nutritional rehabilitation significantly improved body weight gain, restored protein and albumin levels, normalized alkaline phosphatase activity, and reduced inflammatory and hepatic injury markers compared with dietary rehabilitation alone."
- "In contrast, EEN mice treated with TGF-β formula presented faster weight recovery and decreased inflammatory parameters, with a normalized intestinal permeability, suggesting gut restitution and functionality."