Evidence map›Paper›PMID 41897395›Full record

ArticleBiomolecules2026

Longitudinal Analysis of Rat Gut Microbiome Composition and Fecal Metabolism Markers Following Prolonged Morphine Exposure.

Bianka Micke, Jiri Novotny

Abstract read
In one paragraph

Article in Biomolecules, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Bianka MickeDepartment of Physiology, Faculty of Science, Charles University, 12800 Prague, Czech Republic.
Jiri NovotnyDepartment of Physiology, Faculty of Science, Charles University, 12800 Prague, Czech Republic.ORCID 0000-0002-6372-0131

Funding

Charles University SVV-260790
6 · The paper itself

Abstract

This study investigated temporal group-level changes in gut microbiome composition and fecal metabolic markers in Wistar rats following a 10-day administration of morphine. Fecal samples were collected at predefined post-discontinuation time points and analyzed using 16S rRNA gene sequencing and GC×GC-TOF/MS-based metabolomics, with a focus on short-chain fatty acids (SCFAs). Morphine exposure was associated with transient alterations in gut microbiome structure at early post-treatment time points, including changes in alpha diversity and shifts in the relative abundance of major bacterial taxa. Unsupervised multivariate analysis of fecal metabolomic profiles revealed substantial inter-individual variability without persistent global separation between control and morphine-treated groups. Targeted analysis identified transient reductions in the relative signal intensities of selected SCFAs shortly after morphine withdrawal, while no significant differences were observed at later time points. These findings suggest that morphine-associated perturbations of the gut microbiome and fecal metabolome are predominantly time-dependent and tend to diminish during extended post-discontinuation phases.

Indexed as

FecesGastrointestinal MicrobiomeMorphineAnimalsBiomarkersFatty Acids, VolatileLongitudinal StudiesMaleMetabolomeMetabolomicsRatsRats, WistarRNA, Ribosomal, 16SBiomarkersFatty Acids, VolatileMorphineRNA, Ribosomal, 16Sfecal metabolomegut microbiomemorphineopioidsshort-chain fatty acidswithdrawal

Identifiers

PMID41897395
PMCPMC13023539

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.