Evidence map›Paper›PMID 22869321›Full record

SynthesisDiabetologia2012

Common polymorphism near the MC4R gene is associated with type 2 diabetes: data from a meta-analysis of 123,373 individuals.

B Xi, F Takeuchi, G R Chandak, N Kato, H W Pan, AGEN-T2D Consortium, D H Zhou, H Y Pan, J Mi

Open access · greenAbstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Diabetologia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
2.5field-weighted citation impact, top 11% 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

33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Pooled it
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  15. An Association between Diet andInternational journal of molecular sciences · 2021
    Article
  16. Insulin resistance-associated genetic variants in type 1 diabetes.Journal of diabetes and its complications · 2021
    Article
  17. 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 7 institutions in 3 countries.

B XiDepartment of Maternal and Child Health Care, School of Public Health, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China. xibo2007@126.com.
F TakeuchiDepartment of Gene Diagnostics and Therapeutics, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.
G R ChandakCentre for Cellular and Molecular Biology, Council of Scientific and Industrial Research, Hyderabad, India.
N KatoDepartment of Gene Diagnostics and Therapeutics, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.
H W PanDepartment of Ophthalmology, Medical College, Jinan University, Guangzhou, China.
AGEN-T2D Consortium
D H ZhouDepartment of Endocrinology, Linyi People's Hospital, Linyi, People's Republic of China.
H Y PanDepartment of Epidemiology and Biostatistics, Guangdong Medical College, Dongwan, People's Republic of China.
J MiDepartment of Epidemiology, Capital Institute of Pediatrics, 2 Ya Bao Road, Beijing, 100020, People's Republic of China. jiemi@vip.163.com.
National Center for Global Health and Medicine · JPCapital Institute of Pediatrics · CNCouncil of Scientific and Industrial Research · INGuangdong Medical College · CNJinan University · CNLinyi People's Hospital · CNShandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisGenome-wide association studies have shown that variants near the melanocortin 4 receptor gene (MC4R) (rs17782313 and rs12970134) are associated with risk of obesity in Europeans. As obesity is associated with an increased risk of type 2 diabetes, many studies have investigated the association between polymorphisms near the MC4R gene and type 2 diabetes risk across different ethnic populations, with inconsistent results. In this study, we performed a meta-analysis to clarify the association of variants near MC4R with type 2 diabetes risk.

methodsPublished literature from PubMed and Embase was retrieved. All studies that evaluated the association of at least one of the two MC4R polymorphism(s) with type 2 diabetes were included in the study. Pooled ORs with 95% CIs were calculated using the fixed-effects model.

resultsA total of 19 studies (comprising 34,195 cases and 89,178 controls) of the rs17782313 polymorphism (or its proxy rs12970134) were included in the meta-analysis. The results indicated that the rs17782313 polymorphism was significantly associated with type 2 diabetes risk among the overall study population (OR 1.10, 95% CI 1.07, 1.13, p = 2.83 × 10(-12) [Z test], I(2) = 9.1%, p = 0.345 [heterogeneity]). The association remained significant even after adjustment for body mass index (BMI) (OR 1.06, 95% CI 1.03, 1.09, p = 2.14 × 10(-5) [Z test], I(2) = 4.9%, p = 0.397 [heterogeneity]). Further sensitivity analysis confirmed the statistically significant association of rs17782313 polymorphism with type 2 diabetes, and no publication bias was detected. CONCLUSIONS/

interpretationThe present meta-analysis confirmed the significant association of the rs17782313 polymorphism near the MC4R gene with type 2 diabetes risk, which was independent of BMI.

Indexed as

AdultAgedCase-Control StudiesDiabetes Mellitus, Type 2FemaleGenome-Wide Association StudyHumansMaleMiddle AgedPolymorphism, Single NucleotideReceptor, Melanocortin, Type 4Risk FactorsMC4R protein, humanReceptor, Melanocortin, Type 4

Identifiers

PMID22869321
OpenAlexW2016679723

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.