Evidence map›Paper›PMID 22619290›Full record

SynthesisDiabetes care2012

Peroxisome proliferator-activated receptor γ polymorphism Pro12Ala Is associated with nephropathy in type 2 diabetes: evidence from meta-analysis of 18 studies.

Hui Zhang, Shimiao Zhu, Jing Chen, Yang Tang, Hailong Hu, Viswanathan Mohan, Radha Venkatesan, Jianmin Wang, Haiping Chen

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Diabetes care, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 10 pooled it
3.1field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 10 syntheses or guidelines pooled it, 47 citations in OpenAlex.

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  7. Two-gene expression ratio as predictor for breast cancer treated with tamoxifen: evidence from meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
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  8. Pioglitazone prescription increases risk of bladder cancer in patients with type 2 diabetes: an updated meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
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  18. Maintenance of Kidney Metabolic Homeostasis by PPAR Gamma.International journal of molecular sciences · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Hui ZhangDivision of Geriatric Nephrology, Medical and Health Care Center, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China.
Shimiao Zhu
Jing Chen
Yang Tang
Hailong Hu
Viswanathan Mohan
Radha Venkatesan
Jianmin Wang
Haiping Chen
Second Hospital of Tianjin Medical University · CNCapital Medical University · CNDr. Mohan's Diabetes Specialities Centre · INTianjin Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveInsulin resistance plays a part in diabetic nephropathy (DN). The association between the peroxisome proliferator-activated receptor γ Pro to Ala alteration at codon 12 (Pro12Ala) polymorphism and the risk of insulin resistance has been confirmed. The association between the polymorphism and DN risk has also been widely studied recently, but no consensus was available up to now. RESEARCH DESIGN AND

methodsA systematic search of electronic databases (MEDLINE, Embase, and China National Knowledge Infrastructure) and reference lists of relevant articles was carried out, and then 18 case-control studies involving 3,361 DN cases and 5,825 control subjects were identified.

resultsIn the overall analysis, the Ala12 variant was observed to be significantly associated with decreased DN risk (odds ratio 0.76 [95% CI 0.61-0.93]). Some evidence of heterogeneity among the included studies was detected, which could be explained by the difference of ethnicity and stage of DN. Subgroup analyses stratified by ethnicity and stage of DN were performed, and results indicated the Pro12Ala polymorphism was associated with the risk of DN in Caucasians but no similar association was observed in Asians. Additionally, we observed that Ala12 was associated with decreased risk of albuminuria. With only a few of subjects were available, we failed to detect statistically significant association between the polymorphism and end-stage renal disease (ESRD).

conclusionsOur results indicated that the Ala12 variant is a significantly protective factor for DN. Future research should focus on the effect of Pro12Ala polymorphism on ESRD and gathering data of Africans.

Indexed as

Polymorphism, GeneticAlanineDiabetes Mellitus, Type 2Diabetic NephropathiesFemaleGenetic Predisposition to DiseaseGenotypeHumansInsulin ResistanceKidney Failure, ChronicMaleMiddle AgedPolymorphism, Single NucleotidePPAR gammaProlineAlaninePPAR gammaProline

Identifiers

PMID22619290
PMCPMC3357218
OpenAlexW2122635627

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.