Evidence map›Paper›PMID 27998018›Full record

SynthesisJournal of cellular and molecular medicine2017

Genetic polymorphism of heme oxygenase 1 promoter in the occurrence and severity of chronic obstructive pulmonary disease: a meta-analysis.

Hongbin Zhou, Xiwang Ying, Yuanshun Liu, Sa Ye, Jianping Yan, Yaqing Li

Abstract readMeta-Analysis
In one paragraph

Synthesis in Journal of cellular and molecular medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Review
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  8. Review
  9. Heme Oxygenase 1 in Vertebrates: Friend and Foe.Cell biochemistry and biophysics · 2022
    Review
  10. 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

6 authors.

Hongbin ZhouDepartment of Respiratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Xiwang YingDepartment of Respiratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Yuanshun LiuDepartment of Respiratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Sa YeDepartment of Respiratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Jianping YanDepartment of Respiratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.
Yaqing LiDepartment of Respiratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heme oxygenase 1 (HMOX1) plays an important role in the development of chronic obstructive pulmonary disease (COPD). However, the association of HMOX1 length polymorphism in promoter region to the risk and severity of COPD has not been well studied. In this study, we searched the databases including PubMed, EMBASE, Cochrane Library and China National Knowledge Infrastructure (CNKI) and extracted the information from related articles. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to study the effect of HMOX1 polymorphism on the risk and severity of COPD. As a result, nine studies were included for this meta-analysis. Higher frequencies of L allele and type I genotype (containing at least one L allele) were found in patients with COPD (for L allele, OR 2.02, 95% CI: 1.32-3.11, P = 0.001; for type I genotype, OR 1.82, 95% CI: 1.28-2.61, P = 0.001), especially in Asian population (for L allele, OR 2.23, 95% CI: 1.68-2.95, P < 0.001; for type I genotype, OR 2.02, 95% CI: 1.51-2.70, P < 0.001). Genotyping method, source of control subjects, literature quality and language also affected the results to some extent. However, there was little difference in HMOX1 genotypes distribution in patients with COPD with different severity. Our study indicated L allele and type I genotype were related to the susceptibility but not the severity of COPD.

Indexed as

Genetic Predisposition to DiseasePolymorphism, GeneticPromoter Regions, GeneticSeverity of Illness IndexAllelesCase-Control StudiesGenetic Association StudiesGenetic HeterogeneityGenotypeHeme Oxygenase-1HumansPublication BiasPulmonary Disease, Chronic ObstructiveRisk FactorsHeme Oxygenase-1COPDHMOX1length polymorphismseveritysusceptibility

Identifiers

PMID27998018
PMCPMC5387120

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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.