Evidence map›Paper›PMID 30732132›Full record

SynthesisMedicine2019

Glutathione-S-transferases M1/T1 gene polymorphisms and male infertility risk in Chinese populations: A meta-analysis.

Chun-Yan Hu, Dong-Liang Lu, Tao Wu, Shu-Lin Cheng, Tian-Tian Wu, Shu Wang, Tao Zhang

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

3 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Review
  3. Observational
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

7 authors at 2 institutions in 1 country.

Chun-Yan HuDepartment of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong.
Dong-Liang LuDepartment of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Tao WuDepartment of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong.
Shu-Lin ChengDepartment of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong.
Tian-Tian WuDepartment of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong.
Shu WangDepartment of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong.
Tao ZhangDepartment of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong.
Affiliated Hospital of North Sichuan Medical College · CNSichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA meta-analysis was applied to evaluate the associations between the glutathione-S-transferases (GSTs) M1/T1 gene polymorphisms and male infertility in Chinese populations.

methodsA comprehensive search for articles was conducted from PubMed, Web of Science, Embase, China biology medical literature database (CBM), China National Knowledge Infrastructure (CNKI), VIP, and Chinese literature database(Wang fang) up to April 30, 2018. All of the statistical analyses were performed using Review Manager 5.3 and Stata 14.0.

resultsTen studies on GSTM1 gene polymorphism involving 3302 cases and 1959 controls, and ten studies on GSTT1 gene polymorphism involving 3048 cases and 1861 controls were included in this meta-analysis. Overall, the null genotype of GSTM1/GSTT1 was significantly related to male infertility risk in Chinese populations (GSTM1, OR = 1.35, 95% CI: 1.02-1.78; GSTT1, OR = 1.40, 95% CI: 1.15-1.70). In subgroup analyses stratified by infertility type, significant association was observed between GSTT1 null genotype and male infertility in both nonobstructive azoospermia (NOA) and oligoasthenozoospermia (OAT). However, the GSTM1 null genotype was associated with OAT, but not NOA in Chinese populations. The sensitivity analysis confirmed the reliability and stability of the meta-analysis.

conclusionOur meta-analysis supports that the GSTM1/GSTT1 null genotype might contribute to individual susceptibility to male infertility in Chinese populations.

Indexed as

Asian PeopleAzoospermiaCase-Control StudiesChinaGenetic Predisposition to DiseaseGenotypeGlutathione TransferaseHumansInfertility, MaleMaleOdds RatioOligospermiaPolymorphism, GeneticReproducibility of Resultsglutathione S-transferase T1Glutathione Transferase

Identifiers

PMID30732132
PMCPMC6380701
OpenAlexW2913049182

What OpenQuestion holds

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LicenceCC BY-NC
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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.