Evidence map›Paper›PMID 42573237›Full record

ArticlemSphere2026

Nazanin Nematzadeh Somehsaraei, Joshua Lemuel Hadi, Mohammadali Khan Mirzaei, Li Deng, Michael Gigl, Corinna Dawid, Philippe Schmitt-Kopplin, Itır Geydirici, Michael Schloter, Silvia Gschwendtner

Abstract read
In one paragraph

Article in mSphere, 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

10 authors.

Nazanin Nematzadeh SomehsaraeiZIEL-Institute for Food & Health, Technical University of Munich (TUM), Freising, Germany.ORCID 0009-0008-3309-066X
Joshua Lemuel HadiInstitute of Virology, Helmholtz Center Munich, Neuherberg, Germany.
Mohammadali Khan MirzaeiInstitute of Virology, Helmholtz Center Munich, Neuherberg, Germany.
Li DengInstitute of Virology, Helmholtz Center Munich, Neuherberg, Germany.ORCID 0000-0003-0225-0663
Michael GiglJunior Research Group Food Processing and Health, ZIEL-Institute for Food & Health, Technical University of Munich (TUM), Freising, Germany.
Corinna DawidProfessorship for Chemosensory Food Systems, Technical University of Munich, Freising, Germany.
Philippe Schmitt-KopplinZIEL-Institute for Food & Health, Technical University of Munich (TUM), Freising, Germany.
Itır GeydiriciResearch Unit for Comparative Microbiome Analysis, Helmholtz Center Munich, Munich, Germany.
Michael SchloterZIEL-Institute for Food & Health, Technical University of Munich (TUM), Freising, Germany.
Silvia GschwendtnerResearch Unit for Comparative Microbiome Analysis, Helmholtz Center Munich, Munich, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Monosodium glutamate (MSG; L-glutamate monosodium salt) is among the most widely used flavor enhancers, yet its molecular effects on gut microbial physiology remain poorly understood. Here, we examined the strain-specific transcriptomic and metabolic responses of IMPORTANCE: The impact of monosodium glutamate (MSG) as a highly consumed food additive on the gut microbiome is often overlooked, and community-level analyses reveal little change, masking distinct phenotypic responses of individual strains. By combining gene expression and metabolite profiling using two key human gut bacteria, we show that MSG is sensed as a metabolic signal. A butyrate-producing gut bacterium increases energy metabolism and butyrate production, and a fiber-degrading gut bacterium transiently moderates metabolism to maintain stable fermentation products. These differences suggest that MSG's physiological effects may depend on which bacterial groups dominate an individual's microbiome.

Indexed as

Bacteroides thetaiotaomicronClostridium butyricumGastrointestinal MicrobiomeGlutamic AcidSignal TransductionSodium GlutamateButyratesGene Expression Regulation, BacterialTranscriptomeButyratesGlutamic AcidSodium Glutamatebutyrategut microbiotametabolic healthmetabolomicsmonosodium glutamatestrain-specific responsestranscriptomics

Identifiers

PMID42573237
PMCPMC13508794

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.