Understanding the Molecular Mechanisms of Rifaximin in the Treatment of Gastrointestinal Disorders - A Focus on the Modulation of Host Tissue Function
Bibliographic record
Abstract
Rifaximin is a broad-spectrum oral antibiotic, exhibiting limited systemic absorption, that is used clinically to treat a variety of gastrointestinal disorders, including traveller's diarrhea, hepatic encephalopathy, irritable bowel syndrome, and the inflammatory bowel diseases. Rifaximin's antimicrobial properties, in the context of enteric infections, and its effects on the host's intestinal microbiota have been well characterized. More recently, it has been reported that rifaximin can modulate host tissue function through the activation of distinct molecular events. Within the gastrointestinal tract, rifaximin is a selective agonist of the pregnane X receptor (PXR), a nuclear receptor that regulates the expression of genes related to xenobiotic metabolism and drug detoxification. The PXR can also elicit immunomodulatory effects through its interaction with a variety of intracellular signaling cascades, including the nuclear factor kappa B and c-jun N-terminal kinase pathways. In this review, we will summarize the clinical uses of rifaximin and discuss its mechanism of action in relation to the modulation of the intestinal microbiota and the regulation of gastrointestinal host cell function, with a specific focus on PXR-dependent pathways.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".