Evidence map›Paper›PMID 34388964›Full record

ArticleBMC molecular and cell biology2021

Effect of bacterial infection on sperm quality and DNA fragmentation in subfertile men with Leukocytospermia.

Fatemeh Eini, Maryam Azizi Kutenaei, Fayegheh Zareei, Zeinolabedin Sharifian Dastjerdi, Maryam Hosseinzadeh Shirzeyli, Ensieh Salehi

Open access · goldAbstract read
In one paragraph

Article in BMC molecular and cell biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
8.5field-weighted citation impact, top 2% 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

29 citing papers in PubMed, 64 citations in OpenAlex.

  1. The impact ofInternational journal of reproductive biomedicine · 2026
    Article
  2. Review
  3. Advances in immunological research on male infertility.Frontiers in reproductive health · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Semen Microbiome, Male Infertility, and Reproductive Health.International journal of molecular sciences · 2025
    Review
  8. Article
  9. Review
  10. Review
  11. Biomarker insights · 2025
    Article
  12. Testicular immunity.Molecular aspects of medicine · 2024
    Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Human Male Genital Tract Microbiota.International journal of molecular sciences · 2023
    Review
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 2 institutions in 1 country.

Fatemeh EiniFertility and Infertility Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran. feini13@gmail.com.
Maryam Azizi KutenaeiFertility and Infertility Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Fayegheh ZareeiInfectious and Tropical Diseases Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Zeinolabedin Sharifian DastjerdiMolecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Maryam Hosseinzadeh ShirzeyliDepartment of Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Ensieh SalehiFertility and Infertility Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Hormozgan University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough bacterial infections have been recognized as a possible cause of male infertility, the effect of bacterial infections on sperm quality and sperm DNA fragmentation remains controversial. The current study aimed to investigate the prevalence rate of bacterial infection in subfertile men and its effect on semen quality. Seminal fluid was collected from 172 male members of infertile couples attending the andrology infertility center and a group of 35 fertile subjects as a control. Sperm parameters and DNA fragmentation were evaluated based on the type of bacteria in all ejaculates.

resultsFrom the 172 patients investigated for infertility, 60 (34.88%) patients had a positive culture for pathogenic bacteria of different species. Leukocytospermia was significantly higher in infected samples in comparison with non-infected samples (p < 0.05). Sperm concentration and motility and morphology were significantly lower in infected than non-infected samples. Moreover, sperm DNA fragmentation was significantly higher in infected than non-infected samples. Besides, our results showed that sperm DNA fragmentation was correlated significantly with leukocytospermia (R: 0.22, p < 0.01).

conclusionThe present study suggested that bacterial infection significantly correlated with leukocytospermia could impair male fertility potential through decreasing sperm motility, morphology, and DNA integrity.

Indexed as

AdultBacterial InfectionsDNA FragmentationHumansLeukocyte CountLeukocytesLinear ModelsMaleSpermatogenesisSpermatozoaSperm MotilityTeratozoospermiaBacteriospermiaLeukocytospermiaSemen qualitySperm DNA integrity

Identifiers

PMID34388964
PMCPMC8364116
OpenAlexW3191547585

What OpenQuestion holds

Textmetadata
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.