Impact of Diet-Modulated Butyrate Production on Intestinal Barrier Function and Inflammation.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanisms and physiological pathways without systematic review methodology.
PubMed 30322146 · doi:10.3390/nu10101499
What was done
This narrative review synthesized published evidence on how dietary fiber intake modulates large-intestine butyrate production and influences gut barrier integrity, local intestinal inflammation, and systemic inflammatory markers.
What was found
The abstract reports no numerical data or effect sizes. Qualitatively, dietary fiber intake modulates large-intestinal butyrate production, which acts mechanistically through NF-κB signaling and histone deacetylase (HDAC) inhibition. Butyrate's positive effects are reported to be more consistent on local gut inflammatory markers and barrier function than on peripheral inflammatory markers, potentially due to lower systemic concentrations.
Why it matters
It emphasizes that while dietary modulation readily alters colonic butyrate and local gut inflammation, translating these benefits to remote peripheral tissues may be constrained by low systemic bioavailability.
Limits
The abstract contains no quantitative metrics, sample size, or study selection criteria. As a narrative review, it lacks systematic screening and does not separate findings from cell, animal, or human studies.
Cited by
- context The human gut regulates bodily energy levels, recovery, and nutrient absorption, with dietary fiber being the key nutrient maintaining this function.