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Related Experiment Videos

Quantification of embryo quality by respirometry.

Ana S Lopes1, Torben Greve, Henrik Callesen

  • 1Department of Genetics and Biotechnology, Danish Institute of Agricultural Sciences, DK-8830 Tjele, Denmark. ana.sousalopes@adelaide.edu.au

Theriogenology
|November 18, 2006
PubMed
Summary

Measuring embryo oxygen consumption using new non-invasive technologies like the Nanorespirometer and Embryo Respirometer can improve embryo selection for better developmental competence in IVF treatments.

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Area of Science:

  • Reproductive Biology
  • Biotechnology
  • Embryology

Background:

  • Embryo metabolism assessment, particularly oxygen consumption, is crucial for identifying developmentally competent embryos.
  • Traditional methods for measuring embryonic oxygen consumption often harm subsequent embryo development.

Purpose of the Study:

  • To review novel non-invasive technologies for measuring embryonic respiration rates.
  • To discuss the potential of these technologies as diagnostic tools for improving embryo selection in human and bovine IVF.
  • To examine correlations between respiration rates and other embryo viability parameters.

Main Methods:

  • Introduction of the Nanorespirometer system for single, non-invasive measurements of embryonic respiration.
  • Development of the Embryo Respirometer for continuous respiration measurement with simultaneous digital imaging.

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  • Analysis of correlations between respiration rates and morphological quality, sex, developmental stage, kinetics, diameter, gene expression, and post-transfer viability.

    • Main Results:

    • The Nanorespirometer and Embryo Respirometer are highly sensitive, non-invasive technologies for measuring individual embryonic respiration.
    • These technologies do not adversely affect embryo viability.
    • Respiration rates correlate with various embryo parameters, including morphology and developmental kinetics.

    Conclusions:

    • Assessment of embryonic respiration rates, alongside other viability parameters, offers a more accurate method for embryo evaluation.
    • These advanced respirometry tools hold significant potential for improving embryo selection in both clinical and research settings.
    • Non-invasive metabolic assessment can enhance IVF outcomes by identifying superior embryos.