Evidence map›Paper›PMID 32001796›Full record

ArticleSpinal cord2020

The incidence and etiology of sperm DNA fragmentation in the ejaculates of males with spinal cord injuries.

Eduardo Vargas-Baquero, Stephen Johnston, Antonio Sánchez-Ramos, Angel Arévalo-Martín, Richard Wilson, Jaime Gosálvez

Abstract read
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In one paragraph

Article in Spinal cord, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

9 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
  2. Hurdles of Sperm Success: Exploring the Role of DNases.International journal of molecular sciences · 2025
    Review
  3. Article
  4. Sperm DNA Fragmentation and Fertility.Advances in experimental medicine and biology · 2025
    Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. 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 2 countries.

Eduardo Vargas-BaqueroUnidad de Sexualidad y Fertilidad, Hospital Nacional de Parapléjicos de Toledo, Toledo, Spain.
Stephen JohnstonSchool of Agriculture and Food Sciences, University of Queensland, Gatton, QLD, Australia. s.johnston1@uq.edu.au.ORCID http://orcid.org/0000-0002-0290-5458
Antonio Sánchez-RamosUnidad de Sexualidad de la Fundación Lesionado Medular de Madrid, Madrid, Spain.
Angel Arévalo-MartínUnidad de Sexualidad y Fertilidad, Hospital Nacional de Parapléjicos de Toledo, Toledo, Spain.
Richard WilsonSchool of Mathematics and Physics, University of Queensland, St Lucia, QLD, Australia.
Jaime GosálvezUnidad de Genética, Departamento de Biología, Universidad Autónoma de Madrid, Madrid, Spain.
Hospital Nacional de Parapléjicos · ESThe University of Queensland · AUUniversidad Autónoma de Madrid · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designRetrospective descriptive study.

objectivesTo determine the incidence and probable etiology of sperm DNA fragmentation (SDF) in a sample of males with spinal cord injury (SCI).

settingHospital in Toledo, Spain; University-based Genetics laboratory in Madrid, Spain.

methodsSemen collected by vibro-stimulation from 27 males with various levels of spinal cord injury. Classical semen parameters, SDF, leukocytospermia and pro-oxidant capacity were assessed and compared with a cohort of normozoospermic fertile donors (n = 10).

resultsMales with SCI presented with lower semen quality compared with normozoospermic donors with respect to progressive motility (p = 0.0002), SDF (p < 0.00005), pro-oxidant capacity (p = 0.0191) and leukocytospermia (p < 0.00005). Although there was no significant correlation between semen quality and time since the lesion occurred, the period of abstinence appeared to be positively correlated with SDF (r = 0.486; p = 0.041). When the semen parameters of males with SCI were categorized based on those with cervical and thoracic lesions, sperm concentration was higher for those with cervical damage (p = 0.0257). Males with complete lesions (AIS A) had ejaculates that were lower in progressive motility (p = 0.0040) than those with incomplete injuries (AIS B-D).

conclusionsEjaculates of males with SCI have excessively elevated SDF when compared with normozoospermic donors, which is likely to be associated with coincident high levels of leucocytospermia and pro-oxidant capacity. We propose that these phenomena are caused by the accumulation and degeneration of spermatozoa in the cauda epididymidis.

Indexed as

DNA FragmentationSemenAdultCervical CordHumansIncidenceInfertility, MaleMaleRetrospective StudiesSemen AnalysisSperm MotilitySpinal Cord InjuriesThoracic Vertebrae

Identifiers

PMID32001796
OpenAlexW3003636023

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.