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diagnosis and treatment of infertility, first/second/third generation IVF (including
egg/sperm donation), microsperm retrieval, embryo freezing and resuscitation, artificial
insemination (including husband's sperm and sperm donation), paternity testing, chromosomal
disease
diagnosis, high-throughput gene sequencing, endometrial receptivity gene testing and other
clinical
technology applications. Many of these technologies are at the leading level both domestically
and
internationally.
The starting point of in vitro fertilization (IVF) is much earlier than entering the IVF cycle. It emphasizes comprehensive optimization for both parents, as a healthy maternal physiological environment is a necessary condition for successful embryo implantation and development.
Improving the quality of parents at the source: The eugenics strategy begins with controlling the quality of sperm and eggs at the source. This includes detailed genetic counseling, lifestyle assessment and intervention (such as quitting smoking, alcohol, weight management), and precise nutritional supplementation for parents preparing for pregnancy.
Research has shown that micronutrients such as folate, vitamin D, Omega-3 fatty acids, and coenzyme Q10 can significantly affect fertility outcomes by improving oocyte quality and regulating oxidative stress mechanisms. Research on male infertility has also found that iron metabolism levels can even affect sperm function through epigenetic regulation and are related to the final live birth rate.
Pre treatment of maternal environment: The development of the fetus is closely related to the maternal environment. Any maternal factors that may affect fetal development, such as hypertension, diabetes, thyroid dysfunction, etc., should be effectively controlled before pregnancy assistance. Assessment and preparation of the uterine environment are equally crucial to ensure the best 'soil' is provided for healthy embryos.
The embryo laboratory is the core battlefield for achieving eugenics and assisted reproduction, and the precision of its technology directly affects the final success rate.
Sperm selection technology: In addition to conventional semen analysis, more advanced sperm screening techniques such as "magnetic bead screening technology" (MACS) can eliminate sperm with high apoptosis rates, while "physiological intracytoplasmic sperm injection" (PICSI) can simulate natural selection and select functionally more mature sperm, thereby optimizing the fertilization process.
Dynamic evaluation and intelligent screening of embryos: Modern embryology has surpassed static morphological evaluation. Time lapse photography incubators, such as Geri, can provide 24-hour continuous dynamic observation of embryos. By analyzing their developmental kinetic parameters, they can more accurately predict the developmental potential and implantation ability of embryos. In addition, the introduction of artificial intelligence (AI) technology can integrate multidimensional data of patients, assist embryologists in screening embryos with the highest pregnancy rate, and improve the accuracy and efficiency of decision-making.
Advanced cultivation and freezing technology: From simulating the wet culture environment inside the body to stabilize embryo osmotic pressure, optimizing the composition of the culture medium to provide optimal nutrition for embryo development, to fully automatic vitrification freezing technology to ensure the maximum activity of embryos after recovery, every detail is improved to serve the goal of eugenics and assisted reproduction.
Successful pregnancy depends on the perfect combination of high-quality embryos (seeds) and well tolerated endometrium (soil). It is estimated that about two-thirds of implant failures can be attributed to insufficient endometrial receptivity.
Multidimensional evaluation: In clinical practice, doctors will non invasively evaluate the thickness, classification, and blood flow of the endometrium through ultrasound. An ideal endometrium typically has a thickness of 8-12 millimeters, presenting a clear "trilinear sign" (type A) and abundant blood flow supply.
Individualized positioning of the "implantation window": Embryo implantation only occurs during a brief period known as the "implantation window". [10] For patients with repeated implantation failures, genomic testing techniques such as endometrial receptivity testing (ERA) can determine the individualized optimal transplantation time for each patient by analyzing the expression of hundreds of genes related to receptivity in endometrial samples, achieving "precise transplantation".
Improvement of receptivity: In response to the issues identified during the evaluation, clinical methods such as hormone regulation, intrauterine infusion of HCG, or mechanical stimulation of the endometrium can be used to improve the environment of the endometrium and enhance its ability to accept embryos.
It is worth emphasizing that in the context of modern medicine, the core of "in vitro fertilization" is disease prevention rather than artificially "designing" offspring. Its ethical boundaries are clear, aimed at blocking the transmission of serious genetic diseases and reducing birth defect rates, rather than selecting non-medical indicators such as appearance and intelligence.
Looking ahead to the future, with the maturity of non-invasive embryonic genetic testing (niPGT) and other technologies, as well as the deep application of artificial intelligence in the field of reproduction, in vitro eugenics and assisted reproduction will become more precise, safe, and efficient. It represents the sublimation of the concept of assisted reproductive technology from solving the problem of "inability to give birth" to pursuing "good birth", with the ultimate goal of ensuring the long-term health of mothers and infants and bringing hope for health to more families.
