Preimplantation Genetic Diagnosis (PGD) for Anueploidy
Gene Security Network offers advanced Preimplantation Genetic Diagnosis (PGD) for all 24 chromosomes.
Testing is usually performed on Day 3 when blastomeres are sent to our CLIA-certified laboratory in Redwood City, California. Results are returned by the morning of Day 5, in time for a fresh embryo transfer.
Testing of day 5 trophectoderm samples can also be performed if embryo freezing is planned.
Click here for more information on choosing a Day 3 or a Day 5 biopsy
ABOUT PARENTAL SUPPORT
What is Microarray Analysis?
A microarray is a glass slide with ~300,000 unique pieces of DNA, called “probes.” These probes are designed to stick to pieces of (hybridized) DNA found in the embryonic cell. A computer, which analyzes the microarray (called a “scanner”), will produce a report on the hybridized DNA.
What is Parental Support?
Parental Support is GSN’s unique process (available only through Partner IVF Clinics) to interpret the read-out from the scanner with high accuracy and reliability. GSN uses information from parent biological samples to interpret the data from the microarray. Results are reported for all 24 chromosomes with turnaround in time for Day 5 transfer without embryo freezing when Day 3 embryo biopsy is performed.
Do I need to use ICSI to have Parental Support testing?
THE MOST ACCURATE AND COMPREHENSIVE PGS RESULTS
GSN has shown the Parental Support approach to PGD gives couples using our tests results comparable to a karyotype (the Gold Standard in genetic testing).* We have very high accuracy (averaging above 98.5%) and low false positive and false negative rates.

We deliver accurate results on all chromosomes (including X and Y) are are able to detect more types of abnormalities than any other technology. In addition, GSN is the only test that can simultaneously detect single gene defects plus aneuploidy or translocations plus aneuploidy from a single cell.
Looking for more information on existing PGD technologies?
Click here to read a short article comparing the limitations of various preimplantation genetic diagnostic techniques, published in the Journal of Clinical Embryology.
How do I get GSN’s 24 Chromosome Aneuploidy Testing?
PGS with Parental Support for aneuploidy is only available through GSN’s Partner IVF Clinics. Follow the “Steps to Getting GSN’s 24-Chromosome Aneuploidy Testing” on the right.
*Read more of GSN’s published data here.