New hope for couples wanting to become parents
Couples who have experienced the heartbreak of miscarriage or the disappointment of numerous failed IVF cycles are among those now being offered new hope by Monash IVF of realising their dream of having a healthy baby.
Leading Australian infertility treatment provider Monash IVF is offering “at risk” couples the chance to access the latest form of preimplantation genetic screening (PGS) that includes a full chromosome count of embryos to ensure only the healthiest are implanted.
Monash IVF geneticist and PGS coordinator, Dr Elissa Osborne, explained that PGS is available to couples at risk of passing on a chromosome abnormality or a specific genetic disease to their children.
She said the test could be useful for: older women; couples who have suffered multiple miscarriages; couples who have experienced repeat IVF failure and for those who know they have a specific gene disorder, such as cystic fibrosis in the family.
Through testing, embryos can be screened for a range of genetic conditions including Down Syndrome, Huntington’s disease and Spinal Muscular Atrophy before pregnancy is established, Dr Osborne said.
“Until the development of array testing, PGS tests could only analyse several genetic sites at a time, therefore limiting the diagnostic capability of PGS,’’ Dr Osborne said,
“SNP (single nucleotide polymorphism) arrays represent a further advancement in genetic testing of IVF embryos.’’
SNP array testing is performed on cells that have been sampled from an IVF embryo that is five or six days old. The testing involves analysis of more than 300,000 different DNA sites within those cells. A blood sample is taken from each parent and is screened in parallel with the cells from the embryo.
By using parent DNA as reference data to compare to the embryonic DNA, it is possible to produce results that are far more precise than conventional testing methods.
The process is capable of screening all 23 pairs of chromosomes with results that are typically more than 99 percent accurate. Other PGS methods that miss certain types of chromosome problems or that only test some of the chromosomes, are at risk of missing important genetic information.
“The breakthrough with the latest SNP array testing is that in addition to screening all 23 chromosome pairs, it detects a far wider range of chromosome abnormalities and can determine the genetic source of any additional or missing chromosomes. It can also detect whether these abnormalities occurred before or after fertilisation,’’ Dr Osborne said.
“With the old testing we couldn’t tell whether the chromosome abnormality came from the egg or the sperm. Now that we have this information through SNP array testing, couples can make informed decisions and potentially consider whether they want to use donor eggs or donor sperm.
“We’re very excited to be the only provider in Australia offering this test and there’s a lot of interest among the scientific community as well as couples looking at IVF. Each embryo is precious and accuracy is critical to avoid discarding normal embryos or transferring abnormal embryos.’’
For more information about this testing, contact Monash IV by emailing info@monashivf.com
About Monash IVF
Since the 1970s Monash IVF has been a driving force in the development of assisted reproductive technologies in both Australia and overseas.
Monash IVF continues to achieve many world firsts in IVF and related technologies through the work of its pioneers in the 1970s and a world-class team today. Its team of doctors and scientists has earned outstanding international reputations for their contributions and successes in the field of human reproduction.
Monash IVF has established clinics in key metropolitan and regional areas throughout Victoria and Queensland.
ISSUED BY HUGHES PUBLIC RELATIONS:
Please contact Catherine Bauer on 8412 4100 or email catherine@hughespr.com.au
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