It Is Premature to Use Postmortem Sperm for Reproductive Purposes: a Data-Driven Opinion.

Area of Science:

• Reproductive Medicine
• Genetics
• Bioethics

Background:

• Postmortem sperm retrieval (PMS) is an assisted reproduction technology enabling women to conceive using sperm from deceased partners.
• While ethical considerations of PMS have been explored, a scientific assessment remains limited.
• This study addresses the biological viability and safety of utilizing postmortem sperm for reproduction.

Purpose of the Study:

• To evaluate the biological feasibility of using postmortem sperm for reproductive purposes.
• To identify critical areas for scientific investigation before clinical application of PMS.
• To determine if current data support the use of postmortem sperm in assisted reproduction.

Main Methods:

• Review of existing data on postmortem sperm viability and potential alterations.
• Identification of necessary genetic, epigenetic, and health outcome analyses.
• Proposal for non-human mammalian models for comprehensive lifelong follow-up.

Main Results:

• Current data suggest that utilizing postmortem sperm for reproduction is premature.
• Significant gaps exist in understanding postmortem effects on sperm DNA, RNA, and proteins.
• Long-term outcomes for offspring conceived via PMS are largely unknown.

Conclusions:

• Clinical application of postmortem sperm retrieval should be deferred pending thorough scientific evaluation.
• Extensive research is required on fertilization, embryo development, pregnancy outcomes, and offspring health.
• Genetic and epigenetic integrity, alongside lifelong health monitoring in animal models, are essential before considering human application.