Will noninvasive methods surpass invasive for assessing gametes and embryos?

Area of Science:

• Reproductive biology
• Embryology
• Biochemistry

Background:

• Morphology has historically been the primary method for assessing embryo viability in in vitro fertilization (IVF).
• Invasive techniques like preimplantation genetic screening are used but raise concerns.
• Noninvasive methods are being developed to assess embryo viability through media analysis or imaging.

Purpose of the Study:

• To review the current state of noninvasive embryo assessment technologies.
• To explore the link between an embryo's metabolic blueprint and its viability.
• To determine if noninvasive methods can surpass invasive techniques for embryo selection.

Main Methods:

• Analysis of metabolic function through spent embryo culture medium.
• Utilizing novel imaging and microscopy techniques for embryo assessment.
• Reviewing existing research on noninvasive embryo viability technologies.

Main Results:

• Embryo viability is demonstrably linked to its metabolic blueprint.
• Noninvasive assessment of metabolic function shows potential for embryo selection.
• Novel optical methods are advancing noninvasive embryo assessment.

Conclusions:

• Noninvasive methods, particularly those analyzing metabolic function, show significant promise for embryo selection.
• Metabolic analysis of spent medium or direct embryo imaging can provide a basis for identifying the most viable embryo.
• Noninvasive embryo viability assessment is poised to become a key tool in assisted reproductive technologies.