Male infertility patients generally need to use reproductive treatment to feed offspring, but Russian experts have recently found that the sperm of male infertility patients is mostly sperm in chromosomes.Diseases, such treatment must be carried out with caution.
According to Russia's "Science Information" magazine, the Institute of Outuary Science and Gynecological Science and Gynecological Sciences of the Russian Academy of Medical Sciences has recently cooperated with researchers from the University of St. Petersburg to study 34 sperm chromosomes of men and sperm donors receiving reproductive treatment.It is found that sperm of male infertility patients often contain extra chromosomes.
Generally, 23 chromosomes are contained in normal chromosomes, of which 22 are ingredients, and the other is a sexual chromosomes, namely X chromosomes or Y chromosomes.In short, there is only one chromosomal. If the excellent chromosomes contain excess chromosomes, the offspring generated by sperm and eggs will suffer from genetic diseases.After the sperm with two chromosomes with two No. 18 chromosomes and eggs, its fertilized eggs will contain three chromosomes No. 18. This infant developed by fertilized eggs generally dies in the first year of birth.
Men's infertility patients have a proportion of sperm in semen in semen, 3 to 4 times higher than ordinary men, which makes it difficult for sperm to combine with eggs.Therefore, when the doctor conducted reproductive treatment, the doctor injected the sperm directly into the egg to achieve the combination of sperm eggs.However, in this process, the use of the current technology cannot eliminate excess chromosome, so the offspring obtained by male infertility patients through artificial fertilization often suffer from genetic diseases.
Russian researchers have proposed that they hope to obtain male infertility patients from descendants through artificial fractional methods, and sperm chromosomes should be accepted before artificial insemination to avoid infantile inferiority.
(Editor in charge: Chen Bong)
