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Related Experiment Video

Updated: Oct 21, 2025

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

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Iron overload compromises preimplantation mouse embryo development.

Xiaopan Chen1, Yier Zhou2, Dandan Wu3

  • 1Reproductive Medicine Center, Department of Reproductive Endocrinology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310058, China; Department of Genetic and Genomic Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310058, China.

Reproductive Toxicology (Elmsford, N.Y.)
|September 5, 2021
PubMed
Summary

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This summary is machine-generated.

Excess iron, common in endometriosis, impairs early embryo development by damaging mitochondria and causing cell death (apoptosis and ferroptosis). This finding suggests iron overload contributes to infertility in endometriosis patients.

Area of Science:

  • Reproductive biology
  • Endocrinology
  • Cell biology

Background:

  • The pelvic environment in endometriosis is abnormal, contributing to unexplained infertility.
  • The role of iron overload, from ectopic bleeding in endometriosis, in reproductive failure is not understood.

Purpose of the Study:

  • To investigate the effects of iron at levels relevant to pelvic overload on early mouse embryo development.
  • To determine if iron overload impacts preimplantation embryo development, mitochondrial function, and cell death pathways.

Main Methods:

  • Mouse two-cell embryos were cultured in vitro with iron or an iron chelator.
  • Development rates, ATP levels, mitochondrial membrane potential (MMP), reactive oxygen species (ROS), and apoptosis/ferroptosis were assessed.
Keywords:
ApoptosisBlastocystEndometriosisFerroptosisIron overloadMitochondriaROS

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Last Updated: Oct 21, 2025

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Main Results:

  • Iron exposure significantly impaired blastocyst formation, which was partially reversed by an iron chelator.
  • Embryo development arrest was linked to mitochondrial dysfunction (reduced ATP and MMP) and increased ROS.
  • Iron-exposed embryos showed elevated rates of apoptosis and ferroptosis.

Conclusions:

  • Pathologically relevant iron levels compromise preimplantation embryo development by disrupting mitochondrial function.
  • Iron overload triggers apoptosis and ferroptosis in developing embryos.
  • Excess iron in the peritoneal fluid of endometriosis patients likely contributes to reproductive failure.