Evidence map›Paper›PMID 33960655›Full record

SynthesisJournal of cellular and molecular medicine2021

Meta-analysis: Interleukin 6 gene -174G/C polymorphism associated with type 2 diabetes mellitus and interleukin 6 changes.

Hao Cheng, Wenbin Zhu, Mou Zhu, Yan Sun, Xiaojie Sun, Di Jia, Chao Yang, Haitao Yu, Chunjing Zhang

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Journal of cellular and molecular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 42% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
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 1 institution in 1 country.

Hao ChengDepartment of Clinics, Qiqihar Medical University, Qiqihar, China.
Wenbin ZhuDepartment of Molecular Biology Laboratory, Qiqihar Medical University, Qiqihar, China.
Mou ZhuDepartment of Biochemistry and Molecular Biology, Qiqihar Medical University, Qiqihar, China.
Yan SunDepartment of Clinical Pathogen Microbiology, Qiqihar Medical University, Qiqihar, China.
Xiaojie SunDepartment of Clinical Biochemistry, Qiqihar Medical University, Qiqihar, China.
Di JiaDepartment of Biochemistry and Molecular Biology, Qiqihar Medical University, Qiqihar, China.
Chao YangDepartment of Biochemistry and Molecular Biology, Qiqihar Medical University, Qiqihar, China.
Haitao YuDepartment of Cell Biology, Qiqihar Medical University, Qiqihar, China.
Chunjing ZhangDepartment of Biochemistry and Molecular Biology, Qiqihar Medical University, Qiqihar, China.ORCID 0000-0002-3462-3869
Qiqihar Medical University · CN

Funding

Natural Science Foundation of Heilongjiang Province LH2020H129Research Projects of Basic Scientific Research of Provincial Universities in Heilongjiang Province 2017-QYKYYWF-0747
6 · The paper itself

Abstract

The gene coding interleukin 6 (IL-6) is a promising candidate in predisposition to type 2 diabetes mellitus (T2DM). This study aimed to meta-analytically examine the association of IL-6 gene -174G/C polymorphism with T2DM and circulating IL-6 changes across -174G/C genotypes. Odds ratio (OR) and standard mean difference (SMD) with 95% confidence interval (CI) were calculated. Twenty-five articles were meta-analysed, with 20 articles for T2DM risk and 9 articles for circulating IL-6 changes. Overall, there was no detectable significance for the association between -174G/C polymorphism and T2DM, and this association was relatively obvious under dominant model (OR: 0.82, 95% CI: 0.56-1.21). Improved heterogeneity was seen in some subgroups, with statistical significance found in studies involving subjects of mixed races (OR: 0.63, 95% CI: 0.46-0.86). Begg's and filled funnel plots, along with Egger's tests revealed week evidence of publication bias. In genotype-phenotype analyses, carriers of -174CC and -174CG genotypes separately had 0.10 and 0.03 lower concentrations (pg/mL) of circulating IL-6 than -174GG carriers. Albeit no detectable significance for the association of -174G/C with T2DM, our findings provided suggestive evidence on a dose-dependent relation between -174G/C mutant alleles and circulating IL-6 concentrations, indicating possible implication of this polymorphism in the pathogenesis of T2DM.

Indexed as

Genetic Predisposition to DiseasePolymorphism, Single NucleotideDiabetes Mellitus, Type 2GenotypeHumansInterleukin-6Risk FactorsIL6 protein, humanInterleukin-6interleukin 6polymorphismrisktype 2 diabetes mellitus

Identifiers

PMID33960655
PMCPMC8184671
OpenAlexW3159230925

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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.