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Environmental Stress-Induced Alterations in Embryo Developmental Morphokinetics.

Dorit Kalo1, Shira Yaacobi-Artzi1, Shir Manovich1

  • 1Department of Animal Sciences, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot 7610001, Israel.

Journal of Xenobiotics
|October 25, 2024
PubMed
Summary

Environmental stressors like chemicals and toxins negatively impact embryo development and morphokinetics. Antioxidant supplementation may help improve embryo quality and developmental competence.

Keywords:
embryo morphokineticsenvironmental stressorstime-lapse system

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Area of Science:

  • Reproductive Biology
  • Environmental Toxicology
  • Embryology

Background:

  • Embryo morphokinetics are linked to developmental competence, with early cleavage indicating higher potential.
  • Factors like parental age and lifestyle affect embryo development, but environmental stressors' impact is less understood.

Purpose of the Study:

  • To review the effects of significant environmental stressors on embryo morphokinetics.
  • To explore potential mechanisms of impairment and protective strategies.

Main Methods:

  • Literature review of studies on environmental stressors and embryo morphokinetics.
  • Analysis of effects from heat stress, chemicals (phthalates, herbicides, pharmaceuticals), toxins, radiation, and infections.

Main Results:

  • Environmental stressors including heat, chemicals (e.g., phthalates, atrazine metabolites), toxins (mycotoxins), radiation, and infections can impair embryo morphokinetics.
  • Specific examples of impairing agents include bis-(2-ethylhexyl phthalate), carbamazepine, aflatoxin B1, and SARS-CoV-2.

Conclusions:

  • Environmental stressors pose a significant threat to embryo developmental competence by affecting morphokinetics.
  • Antioxidant supplementation is proposed as a protective measure to enhance embryo morphokinetics and developmental potential.