Evidence map›Paper›PMID 24610095›Full record

ArticleJournal of assisted reproduction and genetics2014

Analysis of compaction initiation in human embryos by using time-lapse cinematography.

Kyoko Iwata, Keitaro Yumoto, Minako Sugishima, Chizuru Mizoguchi, Yoshiteru Kai, Yumiko Iba, Yasuyuki Mio

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Article in Journal of assisted reproduction and genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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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

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3 · Its place in the literature

Who cites it

32 citing papers in PubMed.

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  6. Current Status of Synthetic Mammalian Embryo Models.International journal of molecular sciences · 2024
    Review
  7. Article
  8. Review
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  12. Frontiers in cell and developmental biology · 2024
    Review
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  16. Early human trophoblast development: from morphology to function.Cellular and molecular life sciences : CMLS · 2022
    Review
  17. Review
  18. Article
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  20. Review
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

7 authors.

Kyoko IwataReproductive Centre, Mio Fertility Clinic, 2-1-1 Kuzumo-minami, Yonago, Japan, mfc-rep@mfc.or.jp.
Keitaro Yumoto
Minako Sugishima
Chizuru Mizoguchi
Yoshiteru Kai
Yumiko Iba
Yasuyuki Mio

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo analyze the initiation of compaction in human embryos in vitro by using time-lapse cinematography (TLC), with the goal of determining the precise timing of compaction and clarifying the morphological changes underlying the compaction process.

methodsOne hundred and fifteen embryos donated by couples with no further need for embryo-transfer were used in this study. Donated embryos were thawed and processed, and then their morphological behavior during the initiation of compaction was dynamically observed via time-lapse cinematography (TLC) for 5 days.

resultsAlthough the initiation of compaction occurred throughout the period from the 4-cell to 16-cell stage, 99 (86.1 %) embryos initiated compaction at the 8-cell stage or later, with initiation at the 8-cell stage being most frequent (22.6 %). Of these 99 embryos, 49.5 % developed into good-quality blastocysts. In contrast, of the 16 (13.9 %) embryos that initiated compaction prior to the 8-cell stage, only 18.8 % developed into good-quality blastocysts. Embryos that initiated compaction before the 8-cell stage showed significantly higher numbers of multinucleated blastomeres, due to asynchronism in nuclear division at the third mitotic division resulting from cytokinetic failure.

conclusionsThe initiation of compaction primarily occurs at the third mitotic division or later in human embryos. Embryos that initiate compaction before the 8-cell stage are usually associated with aberrant embryonic development (i.e., cytokinetic failure accompanied by karyokinesis).

Indexed as

Embryonic DevelopmentTime-Lapse ImagingEmbryo, MammalianHumansSpecies Specificity

Identifiers

PMID24610095
PMCPMC3969466

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