Evidence map›Paper›PMID 29844325›Full record

ArticleScientific reports2018

Combining amplicon sequencing and metabolomics in cirrhotic patients highlights distinctive microbiota features involved in bacterial translocation, systemic inflammation and hepatic encephalopathy.

Valerio Iebba, Francesca Guerrieri, Vincenza Di Gregorio, Massimo Levrero, Antonella Gagliardi, Floriana Santangelo, Anatoly P Sobolev, Simone Circi, Valerio Giannelli, Luisa Mannina and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 2 pooled it
6.6field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 2 syntheses or guidelines pooled it, 93 citations in OpenAlex.

  1. Pooled it
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  8. Article
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  12. Plasma Ammonia Levels Over the Course of a Hospitalisation for Overt Hepatic Encephalopathy.Liver international : official journal of the International Association for the Study of the Liver · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Microorganisms · 2025
    Article
  17. Review
  18. Review
  19. Article
  20. Frontiers in cellular and infection microbiology · 2025
    Article

6 more citing papers are in PubMed but not listed here.

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

12 authors at 4 institutions in 2 countries.

Valerio IebbaIstituto Pasteur Cenci Bolognetti Foundation, Public Health and Infectious Diseases Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
Francesca GuerrieriCenter for Life NanoScience@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy.
Vincenza Di GregorioGastroenterology, Department of Clinical Medicine, Sapienza University of Rome, Viale dell'Università 37, 00185, Rome, Italy.
Massimo LevreroCenter for Life NanoScience@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy.
Antonella GagliardiPublic Health and Infectious Diseases Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
Floriana SantangeloPublic Health and Infectious Diseases Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
Anatoly P SobolevDepartment of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185, Rome, Italy.
Simone CirciDepartment of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185, Rome, Italy.
Valerio GiannelliGastroenterology, Department of Clinical Medicine, Sapienza University of Rome, Viale dell'Università 37, 00185, Rome, Italy.
Luisa ManninaDepartment of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185, Rome, Italy.
Serena SchippaPublic Health and Infectious Diseases Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy.
Manuela MerliGastroenterology, Department of Clinical Medicine, Sapienza University of Rome, Viale dell'Università 37, 00185, Rome, Italy. manuela.merli@uniroma1.it.
Sapienza University of Rome · ITCentre Léon Bérard · FRIstituto Pasteur · ITItalian Institute of Technology · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In liver cirrhosis (LC), impaired intestinal functions lead to dysbiosis and possible bacterial translocation (BT). Bacteria or their byproducts within the bloodstream can thus play a role in systemic inflammation and hepatic encephalopathy (HE). We combined 16S sequencing, NMR metabolomics and network analysis to describe the interrelationships of members of the microbiota in LC biopsies, faeces, peripheral/portal blood and faecal metabolites with clinical parameters. LC faeces and biopsies showed marked dysbiosis with a heightened proportion of Enterobacteriaceae. Our approach showed impaired faecal bacterial metabolism of short-chain fatty acids (SCFAs) and carbon/methane sources in LC, along with an enhanced stress-related response. Sixteen species, mainly belonging to the Proteobacteria phylum, were shared between LC peripheral and portal blood and were functionally linked to iron metabolism. Faecal Enterobacteriaceae and trimethylamine were positively correlated with blood proinflammatory cytokines, while Ruminococcaceae and SCFAs played a protective role. Within the peripheral blood and faeces, certain species (Stenotrophomonas pavanii, Methylobacterium extorquens) and metabolites (methanol, threonine) were positively related to HE. Cirrhotic patients thus harbour a 'functional dysbiosis' in the faeces and peripheral/portal blood, with specific keystone species and metabolites related to clinical markers of systemic inflammation and HE.

Indexed as

Bacterial TranslocationGene AmplificationMetabolomicsMicrobiotaCarbonFatty AcidsFecesHepatic EncephalopathyHumansInflammationLiver CirrhosisMetagenomicsMethaneRNA, Ribosomal, 16SCarbonFatty AcidsMethaneRNA, Ribosomal, 16S

Identifiers

PMID29844325
PMCPMC5974022
OpenAlexW2807338956

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.