Development and characteristics of the first generation of IVF
IVF refers to the method of culturing the fertilized eggs in the laboratory through in vitro fertilization technology, and then implanting the well developed embryos into the mother, so that couples who cannot conceive naturally can have children. Since the first successful implementation of IVF technology in 1978, it has experienced three generations of development and evolution.
Development of the first generation of IVF:
The realization of the first generation of IVF mainly depends on in vitro fertilization (IVF) technology, that is, eggs and sperm are combined in the laboratory to form embryos, and then the well developed embryos are transferred to the mother for gestation. The first test tube baby was born in Bath Head Hospital in the UK, which marks the first step of test tube baby technology. However, the success rate of the first generation IVF is low, only about 15%, and the pregnancy complications such as abortion and preterm delivery rate is also high.
Characteristics of the first generation of IVF:
The characteristics of the first generation of IVF mainly include the following aspects:
1. The problem of infertility caused by different diseases can be solved.
2. There are still risks of abortion and premature delivery after embryo transfer.
3. The technical maturity is low, and the success rate and the health status of babies need to be further improved.
Development and characteristics of the second generation of IVF
Development of the second generation of IVF:
With the progress of science and technology, IVF technology has been improved continuously. The second generation of IVF introduced embryo screening technology, including embryonic chromosome screening and genetic disease screening. These screening methods make it possible to select high-quality embryos and improve the success rate of embryo transfer.
Characteristics of the second generation of IVF:
The characteristics of the second generation of IVF mainly include the following aspects:
1. The introduction of embryo screening technology reduces the risk of embryo implantation failure.
2. It improves the success rate of pregnancy and the chance of giving birth to healthy babies.
3. For couples with genetic diseases, the inheritance of genetic diseases can be avoided by screening embryos.
Development and characteristics of the third generation of IVF
Development of the third generation of IVF:
With the further development of reproductive medicine, the third generation IVF technology has gradually formed, including the optimization of embryo culture and the improvement of chromosome screening technology. In addition, the third generation of IVF also introduced new assisted reproductive technologies, such as egg freezing, embryo freezing and amniocentesis.
Features of the third generation IVF:
The characteristics of the third generation of IVF mainly include the following aspects:
1. The optimized embryo culture conditions are conducive to improving the quality of embryos.
2. The improved chromosome screening technology has improved the accuracy of embryo screening.
3. The introduction of new assisted reproductive technology has broadened the way for infertile patients to choose IVF.
Summary
IVF technology has experienced three generations of development and evolution. The success rate of the first generation IVF is low, and there is a risk of miscarriage and premature delivery. The second generation of IVF introduced embryo screening technology, which improved the success rate and the chance of screening healthy embryos. The third generation of IVF has further improved in embryo culture and chromosome screening, and new assisted reproductive technologies have been introduced. With the continuous progress of science and technology, IVF technology is expected to develop more innovations in the future, bringing more hope and gospel to infertile patients.
