Evidence map›Paper›PMID 22552734›Full record

ArticleJournal of assisted reproduction and genetics2012

Presence, localization, and origin of clusterin in normal human spermatozoa.

Zhijian Han, Zengjun Wang, Gong Cheng, Bianjiang Liu, Pengchao Li, Jie Li, Wei Wang, Changjun Yin, Wei Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Spatial Organization of the Sperm Cell Glycoproteome.Molecular & cellular proteomics : MCP · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Molecular Markers: A New Paradigm in the Prediction of Sperm Freezability.International journal of molecular sciences · 2023
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
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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

9 authors at 2 institutions in 1 country.

Zhijian HanDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Zengjun Wang
Gong Cheng
Bianjiang Liu
Pengchao Li
Jie Li
Wei Wang
Changjun Yin
Wei Zhang
Jiangsu Province Hospital · CNNanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeClusterin in mammalian semen is a secretory form of clusterin (sCLU) with the heterodimeric structure. It is secreted by the epididymis and seminal vesicle. It is generally agreed that clusterin mainly exists on the surface of abnormal spermatozoa and is implicated in decreased sperm motility, sperm aggregation and infertility. However, few studies observe clusterin in normal spermatozoa, which is presumed to be a novel form. Up to now, the systematical information about the presence, localization, origin and function of clusterin in normal human spermatozoa has yet not been established. The aim of our current study is to systematically research clusterin in normal human spermatozoa.

methodsWe detected the presence of clusterin via western blot, explored the localization of clusterin using immunofluorescence, and investigated the origin and distribution of clusterin in human testis by western blot and immunohistochemistry.

resultsWe found native clusterin in the inner plasma membrane of normal human spermatozoa. It was derived from the testis and showed similar molecular weight and heterodimeric structure compared with sCLU in semen and on the surface of abnormal spermatozoa.

conclusionClusterin in normal spermatozoa should be self-synthesized during the later stage of spermatogenesis. The different localization and origin suggested that the clusterin observed by us may be a novel form compared with conventional sCLU on the surface of abnormal spermatozoa.

Indexed as

Blotting, WesternCell MembraneClusterinFluorescent Antibody TechniqueHumansHydrophobic and Hydrophilic InteractionsMaleSertoli CellsSpermatogenesisSpermatozoaSperm MotilityTestisCLU protein, humanClusterin

Identifiers

PMID22552734
PMCPMC3430783
OpenAlexW2004281560

What OpenQuestion holds

Textmetadata
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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.