Evidence map›Paper›PMID 26045437›Full record

ArticleScience (New York, N.Y.)2015

Human oocytes. Error-prone chromosome-mediated spindle assembly favors chromosome segregation defects in human oocytes.

Zuzana Holubcová, Martyn Blayney, Kay Elder, Melina Schuh

Open access · greenAbstract read
In one paragraph

Article in Science (New York, N.Y.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 167 papers.

0numbers the graph read from it
0cells of the map it votes in
167citing papers in PubMed
12.6field-weighted citation impact, top 1% 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

167 citing papers in PubMed, 326 citations in OpenAlex.

  1. Molecular mechanisms of folliculogenesis and oogenesis.Systems biology in reproductive medicine · 2026
    Review
  2. Article
  3. Declining ribosome function limits oocyte longevity.bioRxiv : the preprint server for biology · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. From Cytoskeletal Remodeling to Oocyte Quality: The Emerging Role of Mechanics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

107 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

4 authors at 3 institutions in 1 country.

Zuzana HolubcováMedical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.
Martyn BlayneyBourn Hall Clinic, Bourn, Cambridge CB23 2TN, UK.
Kay ElderBourn Hall Clinic, Bourn, Cambridge CB23 2TN, UK.
Melina SchuhMedical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK. mschuh@mrc-lmb.cam.ac.uk.
Bourn Hall Clinic · GBMedical Research Council · GBMRC Laboratory of Molecular Biology · GB

Funding

European Research Council 337415Medical Research Council MC_U105192711
6 · The paper itself

Abstract

Aneuploidy in human eggs is the leading cause of pregnancy loss and several genetic disorders such as Down syndrome. Most aneuploidy results from chromosome segregation errors during the meiotic divisions of an oocyte, the egg's progenitor cell. The basis for particularly error-prone chromosome segregation in human oocytes is not known. We analyzed meiosis in more than 100 live human oocytes and identified an error-prone chromosome-mediated spindle assembly mechanism as a major contributor to chromosome segregation defects. Human oocytes assembled a meiotic spindle independently of either centrosomes or other microtubule organizing centers. Instead, spindle assembly was mediated by chromosomes and the small guanosine triphosphatase Ran in a process requiring ~16 hours. This unusually long spindle assembly period was marked by intrinsic spindle instability and abnormal kinetochore-microtubule attachments, which favor chromosome segregation errors and provide a possible explanation for high rates of aneuploidy in human eggs.

Indexed as

AneuploidyChromosome SegregationMeiosisAnaphaseAnimalsCells, CulturedFemaleGreen Fluorescent ProteinsHumansKinetochoresMiceMicrotubule-Associated ProteinsMicrotubule-Organizing CenterOocytesran GTP-Binding ProteinSpindle Apparatusenhanced green fluorescent proteinGreen Fluorescent ProteinsMicrotubule-Associated Proteinsran GTP-Binding ProteinRAN protein, human

Identifiers

PMID26045437
PMCPMC4477045
OpenAlexW1946360318

What OpenQuestion holds

Textmetadata
LicenceTDM
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.