Evidence map›Paper›PMID 22987045›Full record

SynthesisWiener klinische Wochenschrift2012

The meta-analysis of the association of PPARG P12A, C161T polymorphism and coronary heart disease.

Saidan Ding, Leping Liu, Qï-Chuan Zhuge, Zhen Yu, Xing Zhang, Jieya Xie, Weilong Hong, Silu Wang, Yunxiu Yang, Bicheng Chen

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Wiener klinische Wochenschrift, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
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

10 authors at 2 institutions in 1 country.

Saidan DingDepartment of Surgery Laboratory, The First Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, P.R. China.
Leping Liu
Qï-Chuan Zhuge
Zhen Yu
Xing Zhang
Jieya Xie
Weilong Hong
Silu Wang
Yunxiu Yang
Bicheng Chen
Wenzhou Medical University · CNFirst Affiliated Hospital of Wenzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTwo common variations of peroxisome proliferator-activated receptor γ (PPARG), P12A (Pro12Ala, rs1801282), and C161T (His447His, rs3856806), are thought to have an effect on susceptibility to coronary heart disease (CHD), but the results are inconsistent. Therefore, a meta-analysis of published studies was performed.

methodsThe electronic databases, PubMed, Embase, Web of Science, and CNKI (China National Knowledge Infrastructure) were searched for studies to include in the present meta-analysis (last search was updated on 30 Aug. 2011). Twenty studies testing the association between PPARG gene polymorphisms and CHD were examined: 12 studies of P12A; 8 studies of C161T. Overall and ethnicity-specific summary odds ratios and corresponding 95 % confidence intervals for CHD associated with these polymorphisms were estimated using fixed- and random-effects models. Heterogeneity and publication bias were evaluated. A total of 20 studies including 5,795 cases and 9,069 controls were included in this meta-analysis.

resultsNo significant associations were found in carriers of the rare Ala allele of the P12A polymorphism versus the common Pro/Pro genotype among the studies with both of the fixed-effect and random-effect model. In the subgroup analyses by ethnicity, source of control and type of study, no significant risks were found. For PPARG C161T, carriers of the T variant of C161T polymorphism were associated with an increased risk of CHD (OR = 1.182, 95 % CI: 1.023-1.341, P(heterogeneity) = 0.002), and in the stratified analysis by ethnicity and source of controls, the contrast of CT + TT vs. CC all produced significant association in Asian and hospital-based controls (OR = 1.276, 95 % CI: 1.084-1.468, P(heterogeneity) = 0.055; OR = 1.164, 95 % CI: 1.001-1.326, P(heterogeneity) = 0.002),when the fixed-effect model was used. But they were all insignificant with the random-effect model.

conclusionThis meta-analysis suggests that the PPARG C161T polymorphism marginally contributes to increased susceptibility to CHD and marginally increased association between PPARG H477H polymorphism and CHD also appeared in Asian and hospital-based controls. But PPARG P12A polymorphism is not associated with CHD risk.

Indexed as

ChinaCoronary Artery DiseaseFemaleGenetic Association StudiesGenetic MarkersGenetic Predisposition to DiseaseHumansMalePolymorphism, Single NucleotidePPAR gammaPrevalenceRisk FactorsGenetic MarkersPPAR gamma

Identifiers

PMID22987045
OpenAlexW138560925

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.