Evidence map›Paper›PMID 34796176›Full record

ArticleFrontiers in cell and developmental biology2021

High-Resolution 3D Reconstruction of Human Oocytes Using Focused Ion Beam Scanning Electron Microscopy.

Zuzana Trebichalská, Jakub Javůrek, Martina Tatíčková, Drahomíra Kyjovská, Soňa Kloudová, Pavel Otevřel, Aleš Hampl, Zuzana Holubcová

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cell and developmental biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Electron Microscopy of Human Oocytes.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  4. Article
  5. Article
  6. Review
  7. Timing of ICSI with Respect to Meiotic Spindle Status.International journal of molecular sciences · 2022
    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

8 authors at 2 institutions in 1 country.

Zuzana TrebichalskáDepartment of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia.
Jakub JavůrekTESCAN ORSAY HOLDING, a.s., Brno, Czechia.
Martina TatíčkováDepartment of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia.
Drahomíra KyjovskáReprofit International, Brno, Czechia.
Soňa KloudováReprofit International, Brno, Czechia.
Pavel OtevřelReprofit International, Brno, Czechia.
Aleš HamplDepartment of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia.
Zuzana HolubcováDepartment of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia.
Masaryk University · CZTescan (Czechia) · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The egg plays a pivotal role in the reproduction of our species. Nevertheless, its fundamental biology remains elusive. Transmission electron microscopy is traditionally used to inspect the ultrastructure of female gametes. However, two-dimensional micrographs contain only fragmentary information about the spatial organization of the complex oocyte cytoplasm. Here, we employed the Focused Ion Beam Scanning Electron Microscopy (FIB-SEM) to explore human oocyte intracellular morphology in three dimensions (3D). Volume reconstruction of generated image stacks provided an unprecedented view of ooplasmic architecture. Organelle distribution patterns observed in nine donor oocytes, representing three maturational stages, documented structural changes underlying the process by which the egg acquires developmental competence. 3D image segmentation was performed to extract information about distinct organelle populations, and the following quantitative analysis revealed that the mitochondrion occupies ∼ 4.26% of the maturing oocyte cytoplasm. In summary, this proof-of-concept study demonstrates the potential of large volume electron microscopy to study rare samples of delicate female gametes and paves the way for applying the FIB-SEM technique in human oocyte research.

Indexed as

3D ultrastructureelectron microscopyFIB-SEMhuman oocyteoocyte maturationvolume microscopy

Identifiers

PMID34796176
PMCPMC8593100
OpenAlexW3208347424

What OpenQuestion holds

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LicenceCC BY
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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.