Evidence map›Paper›PMID 33488282›Full record

ReviewReproductive medicine and biology2021

Oxidative stress and male infertility.

Teppei Takeshima, Kimitsugu Usui, Kohei Mori, Takuo Asai, Kengo Yasuda, Shinnosuke Kuroda, Yasushi Yumura

Abstract readReview
In one paragraph

Review in Reproductive medicine and biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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

85 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Review
  7. Article
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  13. Review
  14. Epididymosomes: Composition and Functions for Sperm Maturation.Advances in anatomy, embryology, and cell biology · 2026
    Review
  15. The role of sperm DNA fragmentation in reproduction: a SWOT analysis.Journal of assisted reproduction and genetics · 2025
    Review
  16. Article
  17. Article
  18. Rosemary essenitial oil counters MnOScientific reports · 2025
    Article
  19. Article
  20. Article

25 more citing papers are in PubMed but not listed here.

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.

Teppei TakeshimaDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.ORCID https://orcid.org/0000-0003-2733-5487
Kimitsugu UsuiDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.
Kohei MoriDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.
Takuo AsaiDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.
Kengo YasudaDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.
Shinnosuke KurodaDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.ORCID https://orcid.org/0000-0001-8890-0297
Yasushi YumuraDepartment of Urology, Reproduction Center Yokohama City University Medical Center Yokohama city Japan.ORCID https://orcid.org/0000-0003-0909-478X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBetween 30% and 80% of patients with male infertility produce excessive reactive oxygen species (ROS) in their ejaculate even though the cause of male infertility is unexplained in approximately half of cases. The strong connection between oxidative stress (OS) and male infertility has led recent investigators to propose the term "Male Oxidative Stress Infertility (MOSI)" to describe OS-associated male infertility.

methodsWe searched the PubMed database for original and review articles to survey the effects of OS on male infertility, and then verified the effects and treatments. MAIN

findingsSeminal plasma contains many antioxidants that protect sperm from ROS, because low amounts of ROS are required in the physiological fertilization process. The production of excessive ROS causes OS which can lower fertility through lipid peroxidation, sperm DNA damage, and apoptosis. Several assays are available for evaluating OS, including the MiOXSYS® analyzer to measure oxidation-reduction potential. Several measures should be considered for minimizing OS and improving clinical outcomes.

conclusionAccurately diagnosing patients with MOSI and identifying highly sensitive biomarkers through proteomics technology is vital for better clinical outcomes.

Indexed as

antioxidantslipid peroxidationmale infertilityoxidative stressreactive oxygen species

Identifiers

PMID33488282
PMCPMC7812476

What OpenQuestion holds

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LicenceCC BY
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.