Evidence map›Paper›PMID 31727902›Full record

ArticleScientific reports2019

Application of extracellular flux analysis for determining mitochondrial function in mammalian oocytes and early embryos.

Bethany Muller, Niamh Lewis, Tope Adeniyi, Henry J Leese, Daniel R Brison, Roger G Sturmey

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

39 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Oocyte Exposure to Low Levels of Triclosan Has a Significant Impact on Subsequent Embryo Physiology.International journal of environmental research and public health · 2025
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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.

Bethany MullerCentre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, HU6 7RX, UK.
Niamh LewisInstitute of Aging and Chronic Disease, University of Liverpool, Liverpool, UK.
Tope AdeniyiDepartment of Reproductive Medicine, Manchester University NHS Foundation Trust, Manchester Academic Health Sciences Centre UK, Manchester, UK.
Henry J LeeseCentre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, HU6 7RX, UK.
Daniel R BrisonDepartment of Reproductive Medicine, Manchester University NHS Foundation Trust, Manchester Academic Health Sciences Centre UK, Manchester, UK.
Roger G SturmeyCentre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, HU6 7RX, UK. roger.sturmey@hyms.ac.uk.ORCID http://orcid.org/0000-0003-4423-5058

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondria provide the major source of ATP for mammalian oocyte maturation and early embryo development. Oxygen Consumption Rate (OCR) is an established measure of mitochondrial function. OCR by mammalian oocytes and embryos has generally been restricted to overall uptake and detailed understanding of the components of OCR dedicated to specific molecular events remains lacking. Here, extracellular flux analysis (EFA) was applied to small groups of bovine, equine, mouse and human oocytes and bovine early embryos to measure OCR and its components. Using EFA, we report the changes in mitochondrial activity during the processes of oocyte maturation, fertilisation, and pre-implantation development to blastocyst stage in response to physiological demands in mammalian embryos. Crucially, we describe the real time partitioning of overall OCR to spare capacity, proton leak, non-mitochondrial and coupled respiration - showing that while activity changes over the course of development in response to physiological demand, the overall efficiency is unchanged. EFA is shown to be able to measure mitochondrial function in small groups of mammalian oocytes and embryos in a manner which is robust, rapid and easy to use. EFA is non-invasive and allows real-time determination of the impact of compounds on OCR, facilitating an assessment of the components of mitochondrial activity. This provides proof-of-concept for EFA as an accessible system with which to study mammalian oocyte and embryo metabolism.

Indexed as

AnimalsBiosensing TechniquesCattleEmbryo, MammalianEmbryonic DevelopmentFemaleFertilizationHorsesHumansMiceMitochondriaOocytesOxygen Consumption

Identifiers

PMID31727902
PMCPMC6856134

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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.