Does test tube baby choose gender

Yes; there are many options, such as third-generation IVF technology;

third generation IVF

Advanced reproductive medicine research has pushed the self-control of human reproduction to a new limit - the first generation of IVF technology, which solved infertility caused by female factors; the second generation of IVF technology, which solved the problem of infertility caused by male factors. The problem of infertility; and the breakthrough made by the third-generation IVF technology is revolutionary. From the perspective of biogenetics, it helps human beings to choose the healthiest offspring and provides future parents with genetic diseases the opportunity to have healthy children .

At present, China's third-generation IVF technology is fully mature, and the Reproductive Medicine Center headed by Professor Zhuang Guanglun is the only scientific research unit in my country that conducts the clinical application of third-generation IVF.

The third-generation IVF technology can realize the principle of eugenics:

Because the Center for Reproductive Medicine will cultivate several embryos in the test tube for each couple who chooses IVF technology to have children. The embryo that best meets the eugenic conditions is selected for implantation into the mother.

The eugenic embryos are selected in such a way that some human genetic diseases, such as X-linked diseases, are selectively developed in offspring of different sexes. Take a male patient with hemophilia as an example. Generally speaking, his son is normal; the probability of his daughter being normal or carrying the hemophilia gene is equally divided (hemophilia gene carriers generally do not develop the disease); hemophilia If the patient is female, her son will have the disease, and her daughter will have a 50/50 chance of carrying the normal or hemophilia gene. The eugenic principle of genetic diseases such as malnutrition and color blindness is the same as that of hemophilia. As long as this genetic feature is known, genetic testing can be performed on embryonic cells grown in test tubes, and embryos without disease-causing genes can be selected for implantation in the uterus, thereby avoiding the birth of genetically ill children.

Many human genetic diseases can use this PGD method to avoid inheritance to offspring, such as thalassemia, congenital ignorance and so on.

The two couples weighed the pros and cons and made two different decisions: one agreed to adopt the third-generation baby test technology and chose to have a girl; the other was lucky and did not want to use the technology, and wanted to give birth to a boy, but it was certain , the born boy is still a hemophiliac like the previous boy.

Similar to the latter situation, Zhuang Guanglun has encountered many. He said: "Although modern technology can avoid some genetic diseases through genetic technology, some people still have deep-rooted traditional concepts on the issue of having boys and girls."

Since the reproductive center of the First Affiliated Hospital of Sun Yat-sen University in Guangdong successfully completed the first case of preimplantation genetic diagnosis (PGD) in my country in 1999, PGD has been widely accepted in my country as a very early form of prenatal diagnosis. So far, there are 7 PGD centers in my country, which have performed more than 150 PGD cycles and delivered 30 healthy fetuses.

PGD usually refers to taking part of cells from in vitro fertilized embryos for genetic testing, and transplanting embryos that exclude disease-causing genes and diagnose no genetic disease into the uterus to prevent pregnancy in children with genetic diseases.

There is currently no effective treatment for most genetic diseases. Therefore, the most important way to reduce a specific genetic disease is to accurately diagnose high-risk pregnancy on the basis of genetic eugenics counseling, and selectively abort the sick fetus, so as to achieve the purpose of reducing the birth of sick children. This kind of prenatal diagnosis is usually carried out at 16 to 18 weeks of gestation. Elective abortion or induction of labor will not only cause serious physical and psychological trauma to the patient, but also bring some ethical and moral disputes.

In this case, PGD came into being. Its emergence is the result of the rapid development of assisted reproductive technology and molecular biology technology. The application of PGD technology can not only prevent the occurrence of genetic diseases, but also avoid the possible harm and ethical conflicts caused by selective abortion and multiple abortions. In theory, any disease that can be identified by prenatal diagnosis may be diagnosed using PGD.

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