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Aug 5, 2026

Modulating the Gut-Liver Axis: Anti-Inflammatory Mechanisms of Probiotics and Prebiotics in MASLD

Narrative review describes how probiotics and prebiotics modulate inflammatory cytokines via the TLR4/NF-κB axis in metabolic dysfunction-associated steatotic liver disease (MASLD).

Evidence levelDNarrative / animal / in vitro / mechanistic
Study typenarrative_review
Sample
Effect directionMechanistic only
CertaintyVery low
Clinical applicabilityVery low
Overinterpretation risk1/5 · Low
PICO
Population
Intervention
Comparator
Outcome

What the study showed

The abstract reports that probiotics (Bifidobacterium, Lactobacillus, Akkermansia muciniphila) and prebiotics (inulin, oat β-glucan) consistently suppress pro-inflammatory cytokines (TNF-α, IL-6, IL-1β, IL-17) and enhance anti-inflammatory signals (IL-10) in animal models. The proposed central mechanism involves reduced LPS translocation leading to inhibition of TLR4/NF-κB signaling and the NLRP3 inflammasome. Clinical trial outcomes are described as heterogeneous.

How it was done

Narrative/integrative review synthesizing preclinical and clinical findings on probiotics and prebiotics in MASLD-related inflammation. No inclusion criteria, number of studies, search strategy, or risk-of-bias assessment are reported in the available abstract.

Risk of bias

The abstract provides no inclusion criteria, study count, risk-of-bias evaluation, or quantitative synthesis, indicating a narrative review with limited methodological rigor. Heterogeneity in clinical trials is acknowledged by the authors, restricting generalizability.

Interpretation limit

What this study does NOT prove

This review does not prove that probiotics or prebiotics reverse hepatic fibrosis or alter clinically relevant outcomes in humans with MASLD.

In clinical practice

Preclinical data appear consistent, but the acknowledged clinical heterogeneity precludes definitive therapeutic recommendations based on this review alone. Clinical decisions should await rigorous systematic reviews with meta-analysis.

Limitations

The abstract provides no inclusion criteria, study count, risk-of-bias evaluation, or quantitative synthesis, indicating a narrative review with limited methodological rigor. Heterogeneity in clinical trials is acknowledged by the authors, restricting generalizability.

Technical appendix

Version history

  • 1.0 · 2026-08-05 — Auto-generated under Evidence Standard v1.0

Paid access: structured summary from public metadata; consult the original study at the source.

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