A novel isolator-based system promotes viability of human embryos during laboratory processing

Area of Science:

• Reproductive biology and assisted reproductive technologies.

Background:

• In vitro fertilisation (IVF) involves culturing single cells to embryos, requiring open manipulation and exposure to ambient conditions, increasing cellular stress.
• Conventional IVF procedures use open-fronted laminar flow hoods, potentially compromising gamete and embryo quality.

Purpose of the Study:

• To develop and evaluate a novel, totally enclosed system of isolator-based workstations for IVF procedures.
• To assess the impact of a controlled physiological environment on human embryo development and IVF clinical outcomes.

Main Methods:

• Development of an interlinked, isolator-based workstation system to maintain a physiological environment throughout the IVF process.
• Comparison of laboratory and clinical data from IVF treatments performed within the new enclosed system versus conventional methods.

Main Results:

• Significantly higher blastocyst development rates were observed in the enclosed isolator-based system compared to conventional methods.
• Embryos developed in the isolator system showed accelerated development and contained significantly more cells.
• Introduction of the enclosed system correlated with a significant increase in clinical pregnancy rates and embryo implantation rates.

Conclusions:

• Protection of oocytes and embryos from ambient conditions during IVF significantly promotes improved embryo development.
• The enclosed isolator-based system is a feasible and effective alternative for conducting all IVF procedures, leading to enhanced clinical outcomes.