Related Experiment Video
Updated: Feb 11, 2026

Analysis of Oxidative Stress in Zebrafish Embryos
Published on: July 7, 2014
Oxidative stress and redox regulation of gametogenesis, fertilization, and embryonic development
Satoshi Tsunoda1, Naoko Kimura2, Junichi Fujii1
1Department of Biochemistry and Molecular Biology, Graduate School of Medical Science Yamagata University 2-2-2 Iidanishi 990-9585 Yamagata Japan.
Abstract:
Oxidative stress caused by elevated reactive oxygen species (ROS) is one of the predominant causes of both male and female infertility. Oxidative stress conditions cause either cell death or senescence by oxidation of cellular molecules including nucleic acid, proteins, and lipids. It is particularly important to minimize oxidative stress when in vitro fertilization is performed for the purpose of assisted reproduction. The problems associated with assisted reproductive technology are becoming evident, and it is now the time to clarify its mechanisms and cope with them. On the other hand, the beneficial roles of ROS, such as intracellular signaling, have become evident. The antithetical functions of ROS make it more difficult to overcome the problems caused by oxidative stress. Despite the difficulty in understanding mammalian reproduction, the mechanisms and problems can be gradually unveiled by advanced technology such as genetic modification of animals.
Insights
Oxidative stress from reactive oxygen species (ROS) impairs fertility in both sexes. Minimizing ROS is crucial for assisted reproduction, though ROS also play beneficial signaling roles, complicating treatments.
Area of Science:
- Reproductive Biology
- Oxidative Stress Research
- Infertility Mechanisms
Background:
- Elevated reactive oxygen species (ROS) induce oxidative stress, a primary factor in male and female infertility.
- Oxidative stress leads to cellular damage (nucleic acid, protein, lipid oxidation), causing cell death or senescence.
- Minimizing oxidative stress is critical for successful in vitro fertilization (IVF) and assisted reproductive technologies (ART).
Purpose of the Study:
- To clarify the mechanisms underlying oxidative stress-induced infertility.
- To address challenges in assisted reproductive technologies related to oxidative stress.
- To investigate the dual roles of ROS in reproduction.
Main Methods:
- Review of current understanding of oxidative stress in reproduction.
- Discussion of challenges in assisted reproductive technologies.
- Exploration of advanced technologies like genetic modification for studying mammalian reproduction.
Main Results:
- Oxidative stress is a significant contributor to infertility.
- ROS exhibit dual functions: detrimental in excess, but essential for intracellular signaling.
- ART success is hampered by oxidative stress, necessitating further research.
Conclusions:
- Understanding the complex roles of ROS is key to overcoming infertility.
- Advanced technologies are vital for unraveling reproductive mechanisms and improving ART outcomes.
- Targeting oxidative stress pathways offers potential therapeutic strategies for infertility.
More Related Videos
06:10Assessment of Cellular Oxidation using a Subcellular Compartment-Specific Redox-Sensitive Green Fluorescent Protein
Published on: June 18, 2020
09:33Imaging Approaches to Assessments of Toxicological Oxidative Stress Using Genetically-encoded Fluorogenic Sensors
Published on: February 7, 2018
Related Concept Videos
Balancing Redox Equations
Redox Reactions
Redox Reactions
Oxidation Numbers
Redox Titration: Other Oxidizing and Reducing Agents
Oxidation-Reduction Reactions