Evidence map›Paper›PMID 22744335›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2012

Antioxidative properties of paraoxonase 2 in intestinal epithelial cells.

Louis-Philippe Précourt, Valérie Marcil, Thierry Ntimbane, Rame Taha, Jean-Claude Lavoie, Edgard Delvin, Ernest G Seidman, Jean-François Beaulieu, Emile Levy

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

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  10. Review
  11. Human Paraoxonase-2 (PON2): Protein Functions and Modulation.Antioxidants (Basel, Switzerland) · 2021
    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

9 authors at 5 institutions in 1 country.

Louis-Philippe PrécourtDepartment of Nutrition, Research Centre, CHU-Sainte-Justine, Université de Montréal, Quebec, Canada.
Valérie Marcil
Thierry Ntimbane
Rame Taha
Jean-Claude Lavoie
Edgard Delvin
Ernest G Seidman
Jean-François Beaulieu
Emile Levy
Centre Hospitalier Universitaire Sainte-Justine · CAMcGill University · CAUniversité de Montréal · CACanadian Institutes of Health Research · CAUniversité de Sherbrooke · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Paraoxonase (PON) family members seem central to a wide variety of human illnesses, but appreciation of their antioxidative function in the gastrointestinal tract is in its infancy. The major objective of the present work is to highlight the role of the ubiquitously expressed PON2 in the small intestine. With use of pLKO lentiviral vector containing short hairpin RNA (shRNA) lentivirus, PON2 expression was knocked down in intestinal Caco-2/15 cells, where antioxidative status, lipid peroxidation, and degree of inflammation were evaluated. As a consequence of PON2 inactivation in the epithelial cells, we observed 1) imbalanced primary and secondary antioxidative responses, characterized by increased superoxide dismutases and decreased catalase, 2) high concentrations of H(2)O(2) and malondialdehyde, along with low glutathione-to-glutathione disulfide ratio, 3) upregulation of TNF-α, IL-6, and monocyte chemoattractant protein-1 gene expression after induction of oxidative stress, and 4) raised level of the activation of transcription factor NF-κB, which was likely implicated in exacerbation of the inflammatory activation. These results suggest that PON2 is involved in the antioxidative and anti-inflammatory response in intestinal epithelial cells.

Indexed as

AntioxidantsAryldialkylphosphataseBlotting, WesternCatalaseCell Culture TechniquesEpithelial CellsHumansInflammationIntestinal MucosaLipid PeroxidationMalondialdehydeOxidative StressPolymerase Chain ReactionSuperoxide DismutaseAntioxidantsAryldialkylphosphataseCatalaseMalondialdehydeSuperoxide Dismutase

Identifiers

PMID22744335
PMCPMC3468556
OpenAlexW2158996653

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.