Evidence map›Paper›PMID 36347869›Full record

ArticleNature communications2022

The first mitotic division of human embryos is highly error prone.

Cerys E Currie, Emma Ford, Lucy Benham Whyte, Deborah M Taylor, Bettina P Mihalas, Muriel Erent, Adele L Marston, Geraldine M Hartshorne, Andrew D McAinsh

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
44.1field-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

77 citing papers in PubMed, 128 citations in OpenAlex.

  1. Article
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  10. Morphogen Gradients as Drivers of Mosaicism During Early Human Development.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
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17 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

9 authors at 3 institutions in 1 country.

Cerys E Currie *Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK.
Emma Ford *Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK.
Lucy Benham WhyteUniversity Hospitals Coventry and Warwickshire NHS Trust, Coventry, CV2 2DX, UK.
Deborah M TaylorUniversity Hospitals Coventry and Warwickshire NHS Trust, Coventry, CV2 2DX, UK.
Bettina P MihalasWellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK.
Muriel ErentDivision of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK.
Adele L MarstonWellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK.ORCID 0000-0002-3596-9407
Geraldine M HartshorneDivision of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK. geraldine.hartshorne@warwick.ac.uk.ORCID 0000-0003-2070-8471
Andrew D McAinshDivision of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK. a.d.mcainsh@warwick.ac.uk.ORCID 0000-0001-6808-0711
University of Warwick · GBUniversity Hospitals Coventry and Warwickshire NHS Trust · GBWellcome Centre for Cell Biology · GB

Funding

Wellcome TrustWellcome Trust 106151Wellcome Trust 215625
6 · The paper itself

Abstract

Human beings are made of ~50 trillion cells which arise from serial mitotic divisions of a single cell - the fertilised egg. Remarkably, the early human embryo is often chromosomally abnormal, and many are mosaic, with the karyotype differing from one cell to another. Mosaicism presumably arises from chromosome segregation errors during the early mitotic divisions, although these events have never been visualised in living human embryos. Here, we establish live cell imaging of chromosome segregation using normally fertilised embryos from an egg-share-to-research programme, as well as embryos deselected during fertility treatment. We reveal that the first mitotic division has an extended prometaphase/metaphase and exhibits phenotypes that can cause nondisjunction. These included multipolar chromosome segregations and lagging chromosomes that lead to formation of micronuclei. Analysis of nuclear number and size provides evidence of equivalent phenotypes in 2-cell human embryos that gave rise to live births. Together this shows that errors in the first mitotic division can be tolerated in human embryos and uncovers cell biological events that contribute to preimplantation mosaicism.

Indexed as

Chromosome SegregationEmbryo, MammalianAneuploidyBlastocystHumansKaryotypeMetaphaseMosaicism

Identifiers

PMID36347869
PMCPMC9643329
OpenAlexW4308545469

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.