What is preimplantation genetic screening?
Preimplantation genetic screening is a medical test on a fertilized embryo that checks the symptoms of genetic disorders before implantation. This allows the doctor to avoid embryo implant with severe genetic disorders. This practice has begun to evolve as assisted reproductive technology and genetics have improved, which has made many pairs to seek help with their pregnancy. If a genetic disorder is likely to cause abortion, the doctor does not want to implant an embryo because at the end exposes the mother the risks of pregnancy without the child's reward. Interest in serious genetic disorders incompatible with life; A child can only live a few days or weeks after birth, and parents may not want to go through it. Diagnnosis shows significant future health problems. This usually occurs when the fetus shows signs of oruuploidy, an abnormal number of chromosomes. Depending on the chromosomes involved and whether the child has too much or too little, this can lead to a serious genetic disordersperm. In other cases, a child may be born with disabilities that parents do not feel equipped for driving.
In preimplantation genetic screening, doctors can check aneuploidy, genetic conditions known to be a problem in the family history of the couple and the specific genetic anomalies that one can bear. The aim may be to prevent embryo implantation that will have a genetic condition or avoid a child that will be a carrier. Screening can also be used to check the compatibility of human leukocyte antigen (HLA) to see if a child can provide a gift of stem cells from umbilical cord blood for other sibling.
Preimplantation genetic screening includes some complicated bioetic problems. Bioetics are generally consistent with the safety of the use of testing to avoid high -risk pregnancy or situations where the doctor implants an embryo that right rightIt does not seem to return. They are divided into topics such as the use of genetic screening for sex selection or to eliminate disabilities that are not incompatible with life. For example, parents could decide not to pay an embryo with genes associated with deafness. Some advocates to disabilities express concern that this technology could lead to the elimination of certain disabilities and a reduction in human diversity.
bioetic problems lead most clinics to ask their patients to ask for advice before preimplantation genetic screening