A clinic in the UK is preparing to launch a new type of genetic test, which collects saliva samples from couples to diagnose whether they carry genetic disease-causing genes to help their offspring stay away from 109 “dangerous†recessive genetic diseases, including cystic fibrosis and sickle cells anemia.
Easy to operate
The British "Times" reported on the 8th that the test will be launched at the London Bridge Fertility Clinic. The test is simple and easy, and only requires saliva samples from the tester.
The test fee is 400 pounds per person (about 624 US dollars), and a couple can enjoy a discount of 700 pounds (1092 US dollars). The test results will show whether the subject carries 109 recessive genetic disease-causing genes, including sickle cell anemia and spinal muscular atrophy.
The Times said that one in every 280 babies in the UK suffers from one of these diseases.
If the human body carries only one recessive genetic disease-causing gene, the body will not show disease. However, if both spouses carry a disease-causing gene, their offspring inherit two recessive genes and the likelihood of getting sick will rise to 25%.
Test couples who carry the disease-causing gene can respond early, such as selecting in vitro fertilization, screening healthy fertilized eggs for pregnancy, or conducting tests during pregnancy, giving up infected fetuses, and choosing to adopt children.
Beneficial eugenics
The new law was developed by Counsyl Corporation of the United States and has been implemented in many clinics in the United States.
Counsyl said that despite the low probability of individuals suffering from the above genetic diseases, there are many recessive gene carriers, and about one-third of them carry a disease-causing gene. In the United States, one in 165 couples carries the same genetic disease-causing gene at the same time.
Counsyl executive Balaji Srinivasan said the new test method was inspired by the screening of the "dark moron" disease in the American Jewish community. This recessive hereditary disease is highly fatal, and screening has greatly reduced the birth rate of sick infants.
"Every adult should be tested before having a child," Srinivasan said. "Just as people know that smoking and drinking are not suitable during pregnancy, everyone should also know to scan for genetic diseases. Couples have the ability to check the genetic status The basic right to make fertility decisions without outside influence. "
Bridge Clinic doctor Alan Sanhir said that the clinic will provide consultation services along with the test to help people establish the correct concept.
Controversy
Although Counsyl and Bridge Clinic are optimistic about the significance of the test, this method has attracted controversy. Critics believe that exaggerating the risk of the test will cause unnecessary panic.
According to Franz Flint, a geneticist at Guy and St Thomas Hospital in the UK, the new test at Bridge Clinic has an uncomfortable "good business taste."
"This will cause unnecessary panic," Flint said.
There are also critics who worry that this will result in targeted embryo testing and miscarriage, and there is moral controversy.
The Times reported that, unlike Bridge Clinic, which provides tests for the visiting population, Counsyl is also preparing to sell test methods to the public through the Internet, which has also caused concern. If the new law is not supplemented with appropriate guidance, it may result in improper use.
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