Evidence map›Paper›PMID 26297946›Full record

ArticleCryobiology2015

The crucial role of zona pellucida in cryopreservation of oocytes by vitrification.

Jung Kyu Choi, Tao Yue, Haishui Huang, Gang Zhao, Mingjun Zhang, Xiaoming He

Abstract read
In one paragraph

Article in Cryobiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Review
  2. Oocyte-inspired universal whole-cell vaccines against tumor heterogeneity.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Mechanical Characterization of Murine Oocytes by Atomic Force Microscopy.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Bio-inspired solute enables preservation of human oocytes using minimum volume vitrification.Journal of tissue engineering and regenerative medicine · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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

6 authors.

Jung Kyu ChoiDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States; Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, United States.
Tao YueDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States.
Haishui HuangDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States; Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210, United States.
Gang ZhaoCenter for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China.
Mingjun ZhangDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States; Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, United States.
Xiaoming HeDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States; Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, United States; Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States. Electronic address: He.429@osu.edu.

Funding

Microencapsulation of oocytes for low-CPA (cryoprotectant) vitrificationR01EB012108 · NIBIB · UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA · PI HE, XIAOMING · 2011 to 2014
$1.3M
NIBIB NIH HHS R01 EB012108NIBIB NIH HHS R01EB012108
6 · The paper itself

Abstract

Mammalian oocytes have a proteinaceous hydrogel-like outer shell known as the zona pellucida (ZP) that semi-encloses their plasma membrane and cytoplasm. In this study, we cryopreserved mouse oocytes either with or without ZP by vitrification. Our results show that the presence of an intact ZP could significantly improve the post-vitrification survival of oocytes to 92.1% from 13.3% for oocytes without ZP. Moreover, there was no significant difference in embryonic development between fresh and cryopreserved oocytes with ZP after in vitro fertilization (IVF). Further atomic force microscopy (AFM) analysis showed that the intact oocytes with ZP have an elastic modulus that is more than 85 times higher than that of oocytes without ZP. This may partially explain the important role of ZP in protecting the oocytes by resisting the mechanical stress due to possible ice formation during cryopreservation by vitrification. Collectively, this study reveals a new biophysical role of ZP during vitrification of oocytes and suggests microencapsulation of the many mammalian cells without a ZP in ZP-like hydrogel is an effective strategy to improve their survival post cryopreservation by vitrification.

Indexed as

VitrificationAnimalsCryopreservationElastic ModulusEmbryonic DevelopmentFemaleFertilization in VitroMicroscopy, Atomic ForceOocytesPeromyscusStress, MechanicalZona PellucidaAFMCryopreservationOocyteVitrificationZona pellucida

Identifiers

PMID26297946
PMCPMC4584200

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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.