Evidence map›Paper›PMID 26131222›Full record

ArticleInternational journal of clinical and experimental medicine2015

Impact of oxygen concentrations on fertilization, cleavage, implantation, and pregnancy rates of in vitro generated human embryos.

Zhao-Feng Peng, Sen-Lin Shi, Hai-Xia Jin, Gui-Dong Yao, En-Yin Wang, Hong-Yi Yang, Wen-Yan Song, Ying-Pu Sun

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Oxidative Stress in Pregnancy.Biomolecules · 2023
    Review
  6. Article
  7. Redox Regulation and Oxidative Stress in Mammalian Oocytes and Embryos DevelopedInternational journal of environmental research and public health · 2021
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. [Effect of oxygen concentration on outcome ofZhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2017
    Article
  13. Oxygen tension in embryo culture: does a shift to 2% OJournal of assisted reproduction and genetics · 2017
    Review
  14. 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 1 institution in 1 country.

Zhao-Feng PengCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
Sen-Lin ShiCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
Hai-Xia JinCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
Gui-Dong YaoCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
En-Yin WangCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
Hong-Yi YangCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
Wen-Yan SongCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
Ying-Pu SunCenter for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University 1 East Jianshe Road, Zhengzhou 450052, Henan Province, China.
First Affiliated Hospital of Zhengzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the present study was to determine the impact of oxygen concentration during in vitro culture of human oocytes and embryos on fertilization, cleavage, implantation, pregnancy, multiple gestation and abortion rates. Women 20-48 years old presenting for infertility treatment and accounting for 3484 in vitro fertilization/intracytoplasmic sperm injection cycles were included in the study. Oocytes/embryos were randomly allocated to be incubated under three different oxygen tension environments: (1) 20% O2 in air; (2) initially 20% O2 in air, followed on day 2 (2-4 cells stage) by 5% CO2, 5% O2 and 90% N2; and (3) 5% CO2, 5% O2 and 90% N2 throughout. Interestingly, IVF-derived embryos cultured in 5% O2 yielded higher rates of fertilization and implantation as compared to those incubated in 20% O2 (P < 0.05). Conversely, embryos in 20% O2 yielded higher rates of fertilization, high quality embryo and implantation than those in the 20%-5% O2 group (P < 0.05). Moreover, ICSI-derived embryos cultured in 20% O2 resulted in lower rates of cleavage as compared to those from the 20%-5% O2 group (P < 0.05). These results are consistent with in vitro and subsequent in vivo embryo development being more susceptible to O2 tension fluctuations rather than the degree of O2 tension itself during culture.

Indexed as

ICSIIn vitro embryo cultureIVFoxygen tension

Identifiers

PMID26131222
PMCPMC4483955
OpenAlexW2400191079

What OpenQuestion holds

Textmetadata
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.