Evidence map›Paper›PMID 32414055›Full record

ArticleAntioxidants (Basel, Switzerland)2020

Palmitic Acid Affects Intestinal Epithelial Barrier Integrity and Permeability In Vitro.

Manuele Gori, Annamaria Altomare, Silvia Cocca, Eleonora Solida, Mentore Ribolsi, Simone Carotti, Alberto Rainer, Maria Francesconi, Sergio Morini, Michele Cicala and 1 more

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.9field-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

32 citing papers in PubMed, 63 citations in OpenAlex.

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  7. Review
  8. Macronutrients as Regulators of Intestinal Epithelial Permeability: Where Do We Stand?Comprehensive reviews in food science and food safety · 2025
    Review
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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

11 authors at 1 institution in 1 country.

Manuele GoriGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Annamaria AltomareGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Silvia CoccaGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Eleonora SolidaGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Mentore RibolsiGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Simone CarottiMicroscopic and Ultrastructural Anatomy Unit, Università Campus Bio-Medico di Roma, via Alvaro del Portillo 21, 00128 Rome, Italy.
Alberto RainerTissue Engineering Laboratory, Department of Engineering, Università Campus Bio-Medico di Roma, via Alvaro del Portillo 21, 00128 Rome, Italy.
Maria FrancesconiMicroscopic and Ultrastructural Anatomy Unit, Università Campus Bio-Medico di Roma, via Alvaro del Portillo 21, 00128 Rome, Italy.
Sergio MoriniMicroscopic and Ultrastructural Anatomy Unit, Università Campus Bio-Medico di Roma, via Alvaro del Portillo 21, 00128 Rome, Italy.
Michele CicalaGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Michele Pier Luca GuarinoGastroenterology Unit, Departmental Faculty of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Università Campus Bio-Medico · IT

Funding

FIRE - Fondazione Italiana per la Ricerca in Epatologia - ONLUS FIRE - Fondazione Italiana per la Ricerca in Epatologia - ONLUS Fellowship 2017Università Campus Bio-Medico di Roma, "Internal Grant" 0015-2014
6 · The paper itself

Abstract

Palmitic acid (PA), a long-chain saturated fatty acid, might activate innate immune cells. PA plays a role in chronic liver disease, diabetes and Crohn's disease, all of which are associated with impaired intestinal permeability. We investigated the effect of PA, at physiological postprandial intestinal concentrations, on gut epithelium as compared to lipopolysaccharide (LPS) and ethanol, using an in vitro gut model, the human intestinal epithelial cell line Caco-2 grown on transwell inserts. Cytotoxicity and oxidative stress were evaluated; epithelial barrier integrity was investigated by measuring the paracellular flux of fluorescein, and through RT-qPCR and immunofluorescence of tight junction (TJ) and adherens junction (AJ) mRNAs and proteins, respectively. In PA-exposed Caco-2 monolayers, cytotoxicity and oxidative stress were not detected. A significant increase in fluorescein flux was observed in PA-treated monolayers, after 90 min and up to 360 min, whereas with LPS and ethanol, this was only observed at later time-points. Gene expression and immunofluorescence analysis showed TJ and AJ alterations only in PA-exposed monolayers. In conclusion, PA affected intestinal permeability without inducing cytotoxicity or oxidative stress. This effect seemed to be faster and stronger than those with LPS and ethanol. Thus, we hypothesized that PA, besides having an immunomodulatory effect, might play a role in inflammatory and functional intestinal disorders in which the intestinal permeability is altered.

Indexed as

adherens junctions.Caco-2 monolayergut barrier integrityintestinal permeabilitypalmitic acidtight junctions

Identifiers

PMID32414055
PMCPMC7278681
OpenAlexW3024708205

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.