Can test tube babies accept Tang screen test?
IVF refers to the process of completing fertilization and embryo culture in vitro through artificial assisted reproduction technology, and then transplanting the fertilized egg into the female uterus to make it pregnant and deliver successfully. In the process of IVF, Tang screen test can provide information about chromosomal abnormalities in embryos and help couples make more intelligent choices. However, there are still some controversies about whether IVF should be tested by Tang screen.
1. Principle and purpose of Tang Sieve test
Down screen test is a non-invasive prenatal screening to detect whether there are chromosomal abnormalities in the fetus, especially Down syndrome (also known as trisomy 21 syndrome). This test can analyze the concentration of free DNA and specific proteins in the blood through maternal peripheral blood sampling, and then assess the risk of fetal chromosomal abnormalities.
Through Tang screening test, parents can know whether the fetus carries chromosome abnormalities. If the results are abnormal, they can choose to terminate pregnancy or continue pregnancy according to their own wishes and the doctor's advice, but they should be prepared accordingly.
2. Feasibility of test tube babies receiving Tang screening test
After in vitro fertilization and culture of IVF embryos, doctors can obtain tissue cells through embryo biopsy for screening.
First of all, from a technical point of view, IVF embryo biopsy technology has matured. Tang screening test will not cause too much damage to embryos, and can provide accurate and reliable test results.
Secondly, from an ethical point of view, there is no essential difference between the screening test of test tube babies and the screening test of traditional pregnancies. IVF embryos grow in vitro, which is also an extension of parents' desire to have a healthy baby. Therefore, it is a reasonable and feasible choice for IVF to accept Tang screen test.
Take a hospital in China as an example. The hospital provides Tang screening service for test tube babies. In this hospital, Tang screening test is a routine operation to help couples assess the risk of fetal chromosomal abnormalities and make corresponding decisions.
3. Advantages and disadvantages of test tube babies receiving screening test
Test tube babies receiving Tang screen test have the following advantages:
First of all, Tang screen test can provide information about chromosome abnormalities in embryos and help parents understand the health of embryos. This is particularly important for couples with a family history of chromosomal abnormalities or other risk factors.
Secondly, the results of Tang screen test can enable couples to make more intelligent decisions, such as terminating pregnancy or continuing pregnancy. This is particularly important for couples whose embryos carry chromosomal abnormalities. They can take appropriate measures at an earlier stage to reduce the family's psychological, economic and social burden.
However, there are also some disadvantages for IVF to accept Tang screen test:
First of all, this test can not 100% determine whether the embryo has chromosome abnormalities, but only provide risk assessment, which may lead to misdiagnosis or missed diagnosis. Therefore, the test results still need to be weighed and decided under the advice of doctors.
Secondly, this test requires embryo biopsy, which may bring some risks to the embryo. Although embryo biopsy technology has been very mature and safe, there are still some operational risks.
4. Summary
Test tube babies can accept Tang screen test. Tang screen test can be carried out in the process of IVF embryo culture to provide parents with information on embryo chromosome abnormalities. Although there are some technical and ethical problems with this test, the health of IVF can be ensured by balancing the advantages and disadvantages. Therefore, in the process of IVF, screening test is a reasonable choice.
