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Who should get PGD and why?
PGD offers a safe, practical and effective method for the screening of many potential gene-related problems, such as:
- Abnormal Number of Chromosomes
PGD can be used to screen embryos for Aneuploidy
| Women of ... | Display Aneuploidy rates of ... |
| 35 years and less | Up to 20% |
| 35 to 40 years old | 20 to 50% |
| 40 years and above | Over 50% |
Studies reveal that approximately 10 to 20% of Aneuploidy cases can be linked to paternal origin. In addition, at least 25% of all embryos display signs of Aneuploidy.
PGD can specifically test for these potential problems:
- Anomalies of chromosomes 13, 16, 18, 21 & 22
- Trisomy on chromosomes 13, 18 and 21
- Trisomy on chromosomes 16 & 22
- Rules out Recurrent Pregnancy Loss
- Anomalies of chromosomes X & Y
- Testing can rule out:
- Turner Syndrome (45, X0)
- Klinefelter Syndrome (47, XXY)
- Y-Chromosome (47, XYY)
In rare cases chromosomes are "chaotic", and 100% display abnormal characteristics. These individuals are typically infertile.
- Single-Gene Disorders
Rules out cystic fibrosis, Tay-Sachs disease, and sickle cell anemia.
- Gender Selection
Rules out gender-related genetic disorders, such as hemophilia and X-chromosome linked mental retardation.
PGD can also screen embryos for couples desiring gender choice.
- Chromosome Translocation
Rules out inherited chromosome translocation, which may result in severe physical and mental abnormalities.

info@pgdtesting.com
Copyright ALS, Inc. 2002 All rights reserved.
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