Evidence map›Paper›PMID 34030623›Full record

ArticleMolecular medicine (Cambridge, Mass.)2021

Taxonomic variations in the gut microbiome of gout patients with and without tophi might have a functional impact on urate metabolism.

Eder Orlando Méndez-Salazar, Janitzia Vázquez-Mellado, Carlos S Casimiro-Soriguer, Joaquin Dopazo, Cankut Çubuk, Yessica Zamudio-Cuevas, Adriana Francisco-Balderas, Karina Martínez-Flores, Javier Fernández-Torres, Carlos Lozada-Pérez and 10 more

Open access · goldAbstract read
In one paragraph

Article in Molecular medicine (Cambridge, Mass.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 2 pooled it
9.4field-weighted citation impact, top 1% of its field
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

54 citing papers in PubMed, 2 syntheses or guidelines pooled it, 85 citations in OpenAlex.

  1. Pooled it
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  8. Article
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  13. The Gut Microbiome in Hyperuricemia and Gout.Arthritis & rheumatology (Hoboken, N.J.) · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. The pathogenesis of gout.Journal of rheumatic diseases · 2025
    Review
  20. Review
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

20 authors at 9 institutions in 3 countries.

Eder Orlando Méndez-Salazar *Unidad de Vinculación Científica de la Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico.
Janitzia Vázquez-MelladoRheumatology Department, Hospital General de México Eduardo Liceaga Mexico City, Mexico City, Mexico.
Carlos S Casimiro-SoriguerClinical Bioinformatics Area, Fundación Progreso y Salud (FPS). CDCA, Hospital Virgen del Rocio, 41013, Sevilla, Spain.
Joaquin DopazoClinical Bioinformatics Area, Fundación Progreso y Salud (FPS). CDCA, Hospital Virgen del Rocio, 41013, Sevilla, Spain.
Cankut ÇubukClinical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, EC1M 6BQ, UK.
Yessica Zamudio-CuevasLaboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Calz México-Xochimilco 289, Arenal de Guadalupe, 14389, Mexico City, Mexico.
Adriana Francisco-BalderasLaboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Calz México-Xochimilco 289, Arenal de Guadalupe, 14389, Mexico City, Mexico.
Karina Martínez-FloresLaboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Calz México-Xochimilco 289, Arenal de Guadalupe, 14389, Mexico City, Mexico.
Javier Fernández-TorresLaboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Calz México-Xochimilco 289, Arenal de Guadalupe, 14389, Mexico City, Mexico.
Carlos Lozada-PérezServicio de Reumatología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Mexico City, Mexico.
Carlos PinedaDivisión de Enfermedades Musculo-Esqueléticas y Reumáticas, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Mexico City, Mexico.
Austreberto Sánchez-GonzálezSecretaria de Salud del Estado de Tlaxcala, Mexico City, México.
Luis H SilveiraDepartamento de Reumatología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.
Ana I Burguete-GarcíaDepartamento de Epidemiología Genética, Centro de Investigaciones Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Morelos, Mexico.
Citlalli Orbe-OrihuelaDepartamento de Epidemiología Genética, Centro de Investigaciones Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Morelos, Mexico.
Alfredo Lagunas-MartínezDepartamento de Epidemiología Genética, Centro de Investigaciones Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Morelos, Mexico.
Alonso Vazquez-GomezHospital General Regional No. 1 "Ignacio García Tellez", Instituto Mexicano del Seguro Social, Mérida, Yucatán, Mexico.
Alberto López-ReyesLaboratorio de Gerociencias, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Mexico City, Mexico.
Berenice Palacios-GonzálezUnidad de Vinculación Científica de la Facultad de Medicina UNAM-INMEGEN, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico. bpalacios@inmegen.gob.mx.ORCID 0000-0002-7848-1532
Gabriela Angélica Martínez-Nava *Laboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Calz México-Xochimilco 289, Arenal de Guadalupe, 14389, Mexico City, Mexico.
Instituto Nacional de Rehabilitación · MXInstituto Nacional de Salud Pública · MXFundación Progreso y Salud · ESNational Institute of Genomic Medicine · MXHospital General de México · MXInstituto Nacional de Cardiología · MXMexican Social Security Institute · MXQueen Mary University of London · GBSecretaria de Salud · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the taxonomic composition of the gut microbiome in gout patients with and without tophi formation, and predict bacterial functions that might have an impact on urate metabolism.

methodsHypervariable V3-V4 regions of the bacterial 16S rRNA gene from fecal samples of gout patients with and without tophi (n = 33 and n = 25, respectively) were sequenced and compared to fecal samples from 53 healthy controls. We explored predictive functional profiles using bioinformatics in order to identify differences in taxonomy and metabolic pathways.

resultsWe identified a microbiome characterized by the lowest richness and a higher abundance of Phascolarctobacterium, Bacteroides, Akkermansia, and Ruminococcus_gnavus_group genera in patients with gout without tophi when compared to controls. The Proteobacteria phylum and the Escherichia-Shigella genus were more abundant in patients with tophaceous gout than in controls. Fold change analysis detected nine genera enriched in healthy controls compared to gout groups (Bifidobacterium, Butyricicoccus, Oscillobacter, Ruminococcaceae_UCG_010, Lachnospiraceae_ND2007_group, Haemophilus, Ruminococcus_1, Clostridium_sensu_stricto_1, and Ruminococcaceae_UGC_013). We found that the core microbiota of both gout groups shared Bacteroides caccae, Bacteroides stercoris ATCC 43183, and Bacteroides coprocola DSM 17136. These bacteria might perform functions linked to one-carbon metabolism, nucleotide binding, amino acid biosynthesis, and purine biosynthesis. Finally, we observed differences in key bacterial enzymes involved in urate synthesis, degradation, and elimination.

conclusionOur findings revealed that taxonomic variations in the gut microbiome of gout patients with and without tophi might have a functional impact on urate metabolism.

Indexed as

DysbiosisGastrointestinal MicrobiomeMetagenomeMetagenomicsBiodiversityComputational BiologyGoutHumansProtein Interaction MappingProtein Interaction MapsUric AcidUric AcidGoutGut microbiotaUric acid metabolism

Identifiers

PMID34030623
PMCPMC8142508
OpenAlexW3164844417

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.