Evidence map›Paper›PMID 41404904›Full record

ArticleMicrobiology spectrum2026

Tanzanian goat gut microbiomes adapt to roadside pollutants and environmental stressors.

Emilie Egholm Bruun Jensen, Marie Louise Jespersen, Christina Aaby Svendsen, Tolbert Sonda, Saria Otani, Frank M Aarestrup

Abstract read
In one paragraph

Article in Microbiology spectrum, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Emilie Egholm Bruun JensenResearch group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Lyngby, Denmark.ORCID 0000-0002-3214-7918
Marie Louise JespersenResearch group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Lyngby, Denmark.
Christina Aaby SvendsenResearch group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Lyngby, Denmark.
Tolbert SondaKilimanjaro Clinical Research Institute, Moshi, Tanzania.
Saria OtaniResearch group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Lyngby, Denmark.ORCID 0000-0002-2538-8086
Frank M AarestrupResearch group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Lyngby, Denmark.ORCID 0000-0002-7116-2723

Funding

European and Developing Countries Clinical Trials Partnership 101103059
6 · The paper itself

Abstract

The impact of environmental pollution reaching and affecting the gut microbiome is rising. Pollution from vehicle emissions can release compounds harmful to both animal and environmental health, and their effect on the host microbiome is yet to be determined, particularly in understudied locations. Here, we have investigated the potential effect of environmental pollution on the gut microbiome of Tanzanian goats grazing near a heavily trafficked road compared to goats living in a more rural setting. We identified 1,468 metagenome-assembled genomes (MAGs), of which 768 were unidentified species, and created a genomic database to which 52% of the bacterial community could be assigned. We find significant differences in the composition of the bacterial communities and resistomes between rural and road-exposed goats, but not a major difference in antimicrobial resistance (AMR) abundance. Genes involved in pollutant biodegradation were significantly more abundant in the microbiome of goats grazing along the road. This includes genes involved in degradation of naphthalene and toluene (both present in motor vehicle exhaust), as well as the detoxification enzyme, glutathione S-transferase. These findings suggest living near a heavily trafficked road selects for xenobiotic degrading functions within the goat gut microbiome, which might aid the host in detoxification of these compounds.IMPORTANCETo the best of our knowledge, this is the first study on the potential effect of environmental pollution on the gut microbiome of Tanzanian goats. Using shotgun metagenomics, we compare the gut microbiome of goats living near a heavily-trafficked road in Kigoma, Tanzania, with the gut microbiome of goats living in a rural area. We find that genes involved in pollutant biodegradation were significantly more abundant in the gut microbiome of the road-exposed goats, which potentially aids pollutant detoxification in the host. The effect of environmental pollution on the gut microbiome remains poorly understood; however, with this study, we link a potential effect of environmental pollution to changes in the gut microbiome of Tanzanian goats.

Indexed as

BacteriaEnvironmental PollutantsGastrointestinal MicrobiomeGoatsVehicle EmissionsAnimalsBiodegradation, EnvironmentalEnvironmental PollutionMetagenomeMetagenomicsTanzaniaEnvironmental PollutantsVehicle Emissionsenvironmental pollutiongenomicsgut microbiomemetagenomics

Identifiers

PMID41404904
PMCPMC12889105

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Registered trials

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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.