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Aneuploidy screening as described above detects abnormal chromosome numbers and the diseases associated with those conditions.
They undertook an initial telephone consultation with me, Dr.Because no sperm separation method thus far developed has produced the high level of sperm separation "X" (for female) and "Y" (for male) needed to provide gender outcome success levels greater than 90%, further work to perfect the gender selection process is being studied."PGD" (Preimplantation Genetic Diagnosis) has taken gender selection to the next and most successful level ever (greater than 99.9%).Results from our PGD process far exceed reported results from any and all other processes: Sperm that have been filtered by our standard sperm preparation process are allowed to fertilize the eggs obtained from the female "in vitro" (in our highly specialized fertility laboratory).The embryos resulting from this specialized fertilization process are then screened by our genetics team to determine both their gender and that selected chromosome pairs have resulted in an expected normal genetic pairing outcome (this process is called "aneuploidy" screening).Research and work carried out in the 1980's and 90's have finally provided methods offering the chance of obtaining a desired pregnancy gender outcome that ranges from excellent to virtually guaranteed* with PGD.
It has been known for many years that the gender of a pregnancy is determined by the sex chromosome carried by the sperm.
Later history shows intense interest in gender selection by early Asian (Chinese), Egyptian and Greek cultures.
This is followed by documented scientific efforts beginning in the 1600's to sway the chances of achieving a pregnancy by a variety of methods.
Upon request, we can screen for genetic abnormalities such as Down's syndrome (one "extra" chromosome 21), Turner's syndrome (the absence of one of the two "X" chromosomes normally found in a female), and Kleinfelter's syndrome (a male with one "Y" chromosome and 2 "X" chromosomes instead of the normally found single "X" chromosome).
New DNA microarray technology also provides us the option of screening embryos for a full (46 chromosome) genetic count.
While traditional sperm-screening techniques have a success rates of 60-70%, only PGD offers virtually 100% accuracy.