Successful preimplantation genetic diagnosis is related to the number of available cumulus-oocyte complexes

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Successful preimplantation genetic diagnosis is related to the number of available cumulus-oocyte complexes.

The inheritance pattern of monogenic inheritable disorders influences the proportion of unaffected embryos after preimplantation genetic diagnosis (PGD). We aimed to investigate the influence of the number of cumulus-oocyte complexes (COC) on the outcome after PGD. Eighty-four cycles of 47 couples were included in our analysis. All couples were at risk of transmitting autosomal recessive, autos...

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Effect of Different Harvesting Techniques on the Recovery and Quality of Bovine Cumulus Oocyte Complexes

This study investigated the effect of different harvesting techniques on the recovery rate and quality of bovine cumulus oocyte complexes (COCs) and their subsequent developmental competence including in vitro maturation, fertilization and blastocyst formation. The COCs were retrieved from slaughter ovaries using aspiration, slicing, or aspiration followed by slicing. The COCs were examined mic...

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Introduction to preimplantation genetic diagnosis

Preimplantation genetic diagnosis (PGD) was • fi rst applied in 1988 using a polymerase chain reaction (PCR) protocol to amplify a sequence on the Y chromosome for embryo sexing for patients carrying X-linked disease. Patients have to go through in vitro • fertilization (IVF) so that their embryos may be generated in vitro. Cells are removed from oocytes or embryos and used for the genetic diag...

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ژورنال

عنوان ژورنال: Human Reproduction

سال: 1998

ISSN: 0268-1161,1460-2350

DOI: 10.1093/humrep/13.11.3169