Evidence map›Paper›PMID 32000766›Full record

Observational studyRespiratory research2020

Oxidative stress and Nrf2 expression in peripheral blood mononuclear cells derived from COPD patients: an observational longitudinal study.

A M Fratta Pasini, C Stranieri, M Ferrari, U Garbin, L Cazzoletti, C Mozzini, F Spelta, D Peserico, L Cominacini

Erratum issuedOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in Respiratory research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.8field-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

45 citing papers in PubMed, 70 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

A M Fratta PasiniDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy. annamaria.frattapasini@univr.it.
C StranieriDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy.
M FerrariDepartment of Medicine, Unit of Respiratory Diseases, Verona, Italy.
U GarbinDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy.
L CazzolettiDepartment of Diagnostics and Public Health, Unit of Epidemiology & Medical Statistics, University of Verona, Verona, Italy.
C MozziniDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy.
F SpeltaDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy.
D PesericoDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy.
L CominaciniDepartment of Medicine, Section of General Medicine and Atherothrombotic and Degenerative Diseases, University of Verona, Verona, Italy.
University of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA persistent low inflammatory-oxidative status and the inadequacy of the antioxidant nuclear factor-E2-related factor 2 (Nrf2) have been implicated in chronic obstructive pulmonary disease (COPD) progression. Therefore this study was aimed to assess the association between lung function decline and oxidative-inflammatory markers and Nrf2 signaling pathway expression in peripheral blood mononuclear cells (PBMCs) over time.

methods33 mild-moderate COPD outpatients (mean age 66.9 ± 6.9 years) were age-sex matched with 37 no-COPD subjects. A clinical evaluation, blood sampling tests and a spirometry were performed at baseline and after a mean follow-up of 49.7 ± 6.9 months.

resultsIn COPD, compared to no-COPD, we found a faster lung function decline at follow-up. Although similar prevalence of smoking, hypertension, diabetes and dyslipidemia, systemic markers of inflammation (hs-CRP and white blood cells, WBCs) and oxidative stress (8-isoprostane) were significantly increased in COPD at follow-up, while the antioxidant glutathione (GSH) was significantly reduced. Moreover the expression of Nrf2 and of Nrf2-related genes heme oxygenase (HO)-1 and glutamate-cysteine ligase catalytic (GCLC) subunit in PBMCS were significantly down-regulated in COPD at follow-up, whereas no changes were observed in no-COPD. The percent variation (Δ) of FEV

conclusionsAlthough our results must be confirmed in larger trial they suggest that the down-regulation of Nrf2/ARE gene expression in PBMCs may be one of the determinants of FEV

Indexed as

AgedFemaleFollow-Up StudiesGene ExpressionHumansLeukocytes, MononuclearLongitudinal StudiesMaleMiddle AgedNF-E2-Related Factor 2Oxidative StressPulmonary Disease, Chronic ObstructiveSpirometryNFE2L2 protein, humanNF-E2-Related Factor 2COPD progressionNrf2/ARE gene expressionOxidative stressPBMCs

Identifiers

PMID32000766
PMCPMC6993453
OpenAlexW3003282369

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Registered trials

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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.