Evidence map›Paper›PMID 31576099›Full record

Observational studyWorld journal of gastroenterology2019

Evaluation and comparison of short chain fatty acids composition in gut diseases.

Elena Niccolai, Simone Baldi, Federica Ricci, Edda Russo, Giulia Nannini, Marta Menicatti, Giovanni Poli, Antonio Taddei, Gianluca Bartolucci, Antonino Salvatore Calabrò and 2 more

Open access · hybridAbstract readComparative StudyObservational Study
In one paragraph

Observational study in World journal of gastroenterology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

86 citing papers in PubMed, 1 synthesis or guideline pooled it, 139 citations in OpenAlex.

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  11. In Vitro Influence of a Chemically CharacterizedFoods (Basel, Switzerland) · 2025
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26 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 1 institution in 1 country.

Elena NiccolaiDepartment of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy.
Simone BaldiDepartment of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy.
Federica RicciDepartment of Biomedical, Experimental and Clinical Sciences "Mario Serio" University of Florence, Florence 50134, Italy.
Edda RussoDepartment of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy.
Giulia NanniniDepartment of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy.
Marta MenicattiDepartment of Neurosciences, Psychology, Drug Research and Child Health Section of Pharmaceutical and Nutraceutical Sciences University of Florence, Florence 50134, Italy.
Giovanni PoliDepartment of Statistics, Computer Science, Applications "G.Parenti", Florence 50134, Italy.
Antonio TaddeiDepartment of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy.
Gianluca BartolucciDepartment of Neurosciences, Psychology, Drug Research and Child Health Section of Pharmaceutical and Nutraceutical Sciences University of Florence, Florence 50134, Italy.
Antonino Salvatore CalabròDepartment of Biomedical, Experimental and Clinical Sciences "Mario Serio" University of Florence, Florence 50134, Italy.
Francesco Claudio StingoDepartment of Statistics, Computer Science, Applications "G.Parenti", Florence 50134, Italy.
Amedeo AmedeiDepartment of Experimental and Clinical Medicine, University of Florence, Florence 50134, Italy.
University of Florence · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAn altered (dysbiosis) and unhealthy status of the gut microbiota is usually responsible for a reduction of short chain fatty acids (SCFAs) concentration. SCFAs obtained from the carbohydrate fermentation processes are crucial in maintaining gut homeostasis and their determination in stool samples could provide a faster, reliable and cheaper method to highlight the presence of an intestinal dysbiosis and a biomarker for various gut diseases. We hypothesize that different intestinal diseases, such as celiac disease (CD), adenomatous polyposis (AP) and colorectal cancer (CRC) could display a particular fecal SCFAs' signature.

aimTo compare the fecal SCFAs' profiles of CD, AP, CRC patients and healthy controls, using the same analytical method.

methodsIn this cross-sectional study, we defined and compared the SCFAs' concentration in fecal samples of 9 AP, 16 CD, 19 CRC patients and 16 healthy controls (HC). The SCFAs' analysis were performed using a gas-chromatography coupled with mass spectrometry method. Data analysis was carried out using Wilcoxon rank-sum test to assess pairwise differences of SCFAs' profiles, partial least squares-discriminate analysis (PLS-DA) to determine the status membership based on distinct SCFAs' profiles, and Dirichlet regression to determine factors influencing concentration levels of SCFAs.

resultsWe have not observed any difference in the SCFAs' amount and composition between CD and healthy control. On the contrary, the total amount of SCFAs was significantly lower in CRC patients compared to HC (

conclusionAnalysis of fecal SCFAs shows the potential to provide a non-invasive means of diagnosis to detect patients with CRC and AP, while CD patients cannot be discriminated from healthy subjects.

Indexed as

Adenomatous Polyposis ColiAdolescentAdultAgedAged, 80 and overCeliac DiseaseColorectal NeoplasmsCross-Sectional StudiesDysbiosisFatty Acids, VolatileFecesFemaleGas Chromatography-Mass SpectrometryGastrointestinal MicrobiomeHealthy VolunteersHumansFatty Acids, VolatileAdenomaCeliac diseaseColorectal cancerMicrobiotaShort chain fatty acids

Identifiers

PMID31576099
PMCPMC6767983
OpenAlexW2975708208

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.