Advances in studying human gametogenesis and embryonic development in China†

Area of Science:

• Reproductive medicine
• Developmental biology
• Genetics

Background:

• Assisted reproduction technology (ART) in China has advanced significantly since 1988.
• Current ART success rates are approximately 30-40%, with knowledge gaps in gametogenesis and embryo development.
• Emerging technologies offer new insights into these complex processes.

Purpose of the Study:

• To review and analyze China's progress in reproductive medicine.
• To highlight advancements in understanding human gametogenesis and embryo development.
• To discuss the impact of new sequencing and genetic testing technologies.

Main Methods:

• Review of scientific literature on reproductive medicine in China.
• Analysis of progress in single-cell and low-input sequencing applications.
• Examination of developments in preimplantation genetic testing.

Main Results:

• Significant advancements in understanding transcriptome and epigenetic regulation during human reproductive cell development.
• In-depth investigation of DNA methylation, chromatin accessibility, and histone modifications.
• Rapid development and application of preimplantation genetic testing.

Conclusions:

• China has made outstanding contributions to reproductive medicine, particularly in molecular and genetic aspects.
• Technological advancements are crucial for improving ART success rates.
• Further research is needed to address remaining "black boxes" in reproductive processes.