Evidence map›Paper›PMID 29134478›Full record

ArticleJournal of assisted reproduction and genetics2018

Key factors enhancing sperm fertilizing ability are transferred from the epididymis to the spermatozoa via epididymosomes in the domestic cat model.

Tricia Rowlison, Mary Ann Ottinger, Pierre Comizzoli

Open access · greenAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.2field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. The Potential Roles of Extracellular Vesicles in Wild Animals' Reproduction.Advances in experimental medicine and biology · 2026
    Review
  4. Seminal Vesicle-Derived Exosomes for the Regulation of Sperm Activity.Advances in anatomy, embryology, and cell biology · 2026
    Review
  5. Frontiers in veterinary science · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Canine and Feline Epididymal Semen-A Plentiful Source of Gametes.Animals : an open access journal from MDPI · 2021
    Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Extracellular Vesicles, the Road toward the Improvement of ART Outcomes.Animals : an open access journal from MDPI · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

3 authors at 3 institutions in 1 country.

Tricia RowlisonSmithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, 20008, USA.
Mary Ann OttingerDepartment of Animal and Avian Sciences, University of Maryland, College Park, MD, USA.
Pierre ComizzoliSmithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, 20008, USA. comizzolip@si.edu.
National Zoological Park · USSmithsonian Conservation Biology Institute · USUniversity of Maryland, College Park · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSpermatozoa undergo critical changes in structure and function during the epididymal transit. Our previous studies in the domestic cat demonstrated that incidence of cenexin-a key protein involved in the centrosomal maturation-progressively increases in sperm cells from caput to cauda epididymidis. The objectives of the study were to (1) characterize mechanisms involved in transferring key factors-using the cenexin as a marker-between the epididymis and maturing sperm cells and (2) demonstrate the impact of such mechanisms on the acquisition of functional properties by spermatozoa.

methodsEpididymides were dissected from adult cat testes to assess the presence and localization of cenexin in testicular tissues and each epididymal segment (caput, corpus, and cauda) via immunofluorescence, Western blot, and mass spectrometry.

resultsResults showed that tissues, luminal fluid, and isolated epididymosomes from each segment contained cenexin. Co-incubation of immature sperm cells for 3 h with luminal fluid or epididymosomes followed by immunostaining revealed that percentages of sperm cells containing cenexin significantly increased in samples co-incubated with epididymosome suspensions. Additionally, epididymosome co-incubation with immature spermatozoa resulted in sustained motility compared to untreated spermatozoa while there was no significant effect on acrosome integrity.

conclusionsTaken together, these results suggest that epididymosomes play a critical role in epididymal sperm maturation and could be ideal vehicles to assist in the enhancement or suppression of male fertility.

Indexed as

AcrosomeAnimalsBiomarkersCatsEpididymisHeat-Shock ProteinsMaleSpermatozoaSperm MaturationSperm MotilityBiomarkersHeat-Shock ProteinsCentrosomeDomestic catEpididymisEpididymosomesMotilitySperm maturation

Identifiers

PMID29134478
PMCPMC5845043
OpenAlexW2769920955

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.