Now the major fertility clinics are providing the facility of pre-implantation genetic diagnosis (PGD). This process involves the discarding of cells from an IVF embryo for the process of genetic testing before transplanting the embryo to the uterus. PGS is the pre-implantation genetic screening to test the overall chromosomes count in the embryo. As IVF involves the risk of genetic disorders and metabolic problems in the babies, PGS has helped to avoid these medical conditions.
The embryos were tested for any kind of genetic defects before transferring into the womb and this technology has boosted the IVF success rates by 50 percent. This technology is capable of quickly scanning the human genome for any typical patterns that might inhabit a successful implantation. The machines can scan millions of DNA from a single cell taken from the embryo and produce instant and accurate results. With the help of this report, the doctors can easily assess the best survival chances embryo and use that embryo in the IVF process. Many of the embryos transferring with the IVF process result in some genetic defects. This technology helps in determining the abnormalities in the embryo. This technology cannot help in making the embryos better than they were at the beginning. It only guides doctors to select the most feasible embryo. It increases pregnancy rates by 50 percent across the board and reduces miscarriage by a similar margin.
The common genetic disorders that can be screened by PGS are:
- Cystic fibrosis
- Tay-sachs disease
- Sickle cell disease
- Duchennes muscular dystrophy
The chromosomal disorders diagnosed by PGS are:
- Automosal Trisomies
- Autosomal monosomies
- X, Y numerical disorders