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Updated: Jul 10, 2026
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Measuring Embryonic Viability and Brood Size in Caenorhabditis elegans
Published on: February 24, 2023
Embryo viability and metabolism: obeying the quiet rules
Henry J Leese1, Roger G Sturmey, Christoph G Baumann
1Department of Biology, University of York, PO Box 373, York YO10 5YW, UK. hjl1@york.ac.uk
Human Reproduction (Oxford, England)
|October 25, 2007
Summary
A quiet metabolism in preimplantation embryos is linked to higher viability and successful development in livestock. This metabolic profile may also be relevant for human reproduction and health outcomes.
Area of Science:
- Reproductive biology
- Developmental biology
- Metabolic research
Background:
- Preimplantation embryo viability is theorized to correlate with a 'quiet' metabolism.
- Viable embryos may exhibit greater resilience to cellular damage (genome, transcriptome, proteome).
Purpose of the Study:
- To review evidence supporting the 'quiet embryo' hypothesis in livestock reproduction.
- To assess the applicability of the hypothesis to human reproduction using livestock models.
Main Methods:
- Review of existing data on preimplantation embryo metabolism in humans and mice.
- Extension of the 'quiet embryo' hypothesis to livestock species (sheep, cow).
Main Results:
- Data from sheep and cows support a quiet metabolism during early development correlating with successful embryo development.
- An 'active' metabolic profile is associated with poorer outcomes later in life.
Conclusions:
- Identifying specific metabolic markers for predicting high embryo viability is crucial.
- Exploring methods to promote a 'quiet' metabolic profile and its implications for maternal health (e.g., weight loss in obese women) is warranted.
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