Evidence map›Paper›PMID 27892527›Full record

ArticleScientific reports2016

Abnormal Hypermethylation of the VDAC2 Promoter is a Potential Cause of Idiopathic Asthenospermia in Men.

Aiming Xu, Yibo Hua, Jianzhong Zhang, Wei Chen, Kai Zhao, Wei Xi, Hainan Wang, Jianzheng Fang, Shifeng Su, Min Tang and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 30% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  8. Male Factors: the Role of Sperm in Preimplantation Embryo Quality.Reproductive sciences (Thousand Oaks, Calif.) · 2021
    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

12 authors at 3 institutions in 1 country.

Aiming XuDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Yibo HuaDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Jianzhong ZhangDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Wei ChenDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Kai ZhaoDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Wei XiDepartment of Urology, Zhongshan Hospital affiliated to Fudan University, Shanghai 200032, China.
Hainan WangDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Jianzheng FangDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Shifeng SuDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Min TangDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Bianjiang LiuDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Zengjun WangDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Jiangsu Province Hospital · CNNanjing Medical University · CNThe First Affiliated Hospital, Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to explore the association between the methylation status of the VDAC2 gene promoter region and idiopathic asthenospermia (IAS). Twenty-five IAS patients and 27 fertile normozoospermia (NZ) were involved. GC-2spd cells were treated with different concentrations of 5-aza-2'-deoxycytidine (5-Aza-CdR) for 24 h and 48 h. qRT-PCR was conducted to reveal whether or not VDAC2 expression was regulated by methylated modification. A dual-luciferase activity detection was used to verify VDAC2 promoter activity in GC-2spd cells. Bisulphite genomic sequence was used to analyse DNA methylation of the VDAC2 promoter. The results showed that VDAC2 expression was significantly increased after treated with 5-Aza-CdR. A strong activity of the promoter (-2000 bp to +1000 bp) was detected by dual-luciferase activity detection (P < 0.05). The bisulphite genomic sequencing and correlation analysis showed that sperm motility was positively associated with the methylation pattern of uncomplete methylation and mild hypermethylation, and negatively related to the percentage of moderate methylation. In conclusion, high methylation of the VDAC2 promoter CpGs could be positively correlated with low sperm motility. Abnormal methylation of VDAC2 promoter may be a potential cause to idiopathic asthenospermia.

Indexed as

DNA MethylationPromoter Regions, GeneticAdultAsthenozoospermiaCase-Control StudiesCpG IslandsHumansMaleSperm MotilityVoltage-Dependent Anion Channel 2VDAC2 protein, humanVoltage-Dependent Anion Channel 2

Identifiers

PMID27892527
PMCPMC5124954
OpenAlexW2558854995

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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.