Toxicity testing for human in vitro fertilization programs

Area of Science:

• Embryology
• Reproductive Medicine
• Toxicology

Background:

• Human in vitro fertilization (IVF) relies on specialized materials and media.
• Potential toxicity of these components can compromise IVF success rates.
• Standardized quality control is crucial for reliable IVF outcomes.

Purpose of the Study:

• To assess the toxicity of common materials and procedures used in human IVF.
• To evaluate the quality of culture media from various IVF programs.
• To highlight the need for a standardized animal model for quality control in IVF.

Main Methods:

• A mouse embryo culture system was employed to test material toxicity.
• Culture media from nine different human IVF programs underwent quality-control assays.
• Embryo development was monitored after exposure to various substances and media.

Main Results:

• Exposure to specific sterilization methods (Cidex, ethylene oxide) and packaging negatively affected embryo development.
• Various surgical gloves and synthetic catheter/needle liners demonstrated toxicity.
• Significant variability in culture medium quality was observed across different IVF programs.

Conclusions:

• Certain materials and sterilization processes pose risks to embryo development in IVF.
• The quality of culture media and supplements varies considerably between IVF programs.
• Implementing a standardized animal model system is essential for routine quality control and material testing in human IVF.