Evidence map›Paper›PMID 24658925›Full record

ArticleJournal of assisted reproduction and genetics2014

Seminal superoxide dismutase activity and its relationship with semen quality and SOD gene polymorphism.

Lifeng Yan, Jining Liu, Shengmin Wu, Shenghu Zhang, Guixiang Ji, Aihua Gu

Open access · bronzeAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 91 citations in OpenAlex.

  1. Pooled it
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  15. The Dual Role of Oxidants in Male (In)fertility: Every ROSe Has a Thorn.International journal of molecular sciences · 2023
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. The effect ofInternational journal of reproductive biomedicine · 2021
    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

6 authors at 3 institutions in 1 country.

Lifeng Yan
Jining Liu
Shengmin Wu
Shenghu Zhang
Guixiang Ji
Aihua Gu
Ministry of Ecology and Environment · CNNanjing Institute of Environmental Sciences · CNNanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSuperoxide dismutase (SOD) is an important component of antioxidative defense systems and plays an important role in protecting spermatozoa from oxidative damage. In this study, we assessed seminal SOD activity, its association with semen parameters, and also genetic and non-genetic factors contributing to the determination of SOD activity in infertile men.

methodsSemen samples were obtained from 435 male infertility patients. Sperm DNA damage levels were detected with the Tdt-mediated dUTP nick end labelling (TUNEL) assay. Four single nucleotide polymorphisms (SNPs) in SOD2 and SOD3 genes were genotyped using OpenArray platform.

resultsWe found that seminal SOD activity was positively associated with sperm concentration and overall motility, whereas inversely with sperm DNA fragmentation. In addition, infertile men with SOD2 rs4880 CC variants showed a low level of SOD activity when compared with TT carriers (Mean ± SD: 268.3 ± 102.3 and 342.8 ± 98.2, respectively, P = 0.005). Those who consumed vitamin C/E (≥3 times per week) had a significantly higher SOD activity level than those who did not (mean ± SD: 379.8 ± 93.3 and 332.2 ± 94.9, respectively, P = 0.001).

conclusionsSeminal SOD activity and other factors influencing SOD activity play a role in determining sperm fertilization potential and male infertility.

Indexed as

Polymorphism, Single NucleotideAdultAscorbic AcidAsian PeopleDNA FragmentationHumansInfertility, MaleMaleSemenSemen AnalysisSperm MotilitySuperoxide DismutaseSuperoxide Dismutase 2Vitamin EAscorbic AcidSOD3 protein, humanSuperoxide DismutaseSuperoxide Dismutase 2Vitamin E

Identifiers

PMID24658925
PMCPMC4016371
OpenAlexW2154337784

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.